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DRAFT
Multi-Jurisdictional
Hazard Mitigation Plan
December, 2014
For Public Review
Chester County Department of Emergency Services
601 Westtown Road, Suite 012
West Chester, PA 19380-0990
Chester County
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Record of Changes
Date Description of Change Made Change Made By
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Certification of Annual Review
The Chester County Department of Emergency Services Emergency Management
Division has reviewed this Hazard Mitigation Plan and hereby certifies the review.
Date Public Outreach Addressed? Signature
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Promulgation
THIS PLAN IS PROMULGATED AS THE CHESTER COUNTY HAZARD
MITIGATION PLAN. THIS PLAN IS DESIGNED TO COMPLY WITH ALL
APPLICABLE FEDERAL, COMMONWEALTH, AND COUNTY REGULATIONS
AND PROVIDES THE ACTIONS TO UNDERTAKE TO REDUCE THE IMPACT OF
FUTURE DISASTERS.
THIS PLAN SUPERSEDES ALL PREVIOUS HAZARD MITIGATION PLANS.
PROMULGATED THIS DAY OF , 2015
Kathi Cozzone
Terence Farrell
Michele Kichline
Chief Clerk
(OFFICIAL SEAL OF THE COUNTY OF CHESTER)
Robert J. Kagel
Director
Department of Emergency Services
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FEMA Letter of Approval
[Page reserved for copy of FEMA Letter of Approval]
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Table of Contents
EXECUTIVE SUMMARY ............................................................................................................ 1
OVERVIEW ................................................................................................................................... 3
PURPOSE ...................................................................................................................................... 3
APPLICABILITY AND SCOPE .................................................................................................. 4
MISSION AND GOALS ................................................................................................................ 4
Mission .................................................................................................................. 4
Goals ...................................................................................................................... 4
AUTHORITIES AND REFERENCES ........................................................................................ 5
UPDATE AND MAINTENANCE ............................................................................................... 6
COMMUNITY BACKGROUND ................................................................................................. 7
County Profile ........................................................................................................ 8
Government Structure .......................................................................................... 11
Educational Institutions ........................................................................................ 12
Population Projections ......................................................................................... 13
Land Use .............................................................................................................. 14
Economy .............................................................................................................. 15
Housing ................................................................................................................ 17
Infrastructure ....................................................................................................... 18
Geology and Topography ...................................................................................... 19
Hydrology ............................................................................................................ 21
Climate................................................................................................................. 22
PLANNING PROCESS .............................................................................................................. 25
Determine the planning area and resources .......................................................... 26
Build the planning team ....................................................................................... 26
Create an Outreach Strategy ................................................................................. 27
Review community capabilities ............................................................................ 28
Conduct a risk assessment .................................................................................... 28
Develop a mitigation strategy ............................................................................... 29
Implement the Plan .............................................................................................. 30
Review and Adopt the Plan ................................................................................... 32
RISK ASSESSMENT ................................................................................................................. 33
Hazard Identification ............................................................................................ 34
Hazard Profiles ..................................................................................................... 36
Natural Hazards .................................................................................................... 37 Drought and Water Supply Deficiencies .............................................................................................. 37 Earthquake ........................................................................................................................................... 39 Extreme Temperatures ........................................................................................................................ 42 Flooding ............................................................................................................................................... 44 Hurricane and Tropical Storm .............................................................................................................. 48
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Thunderstorms..................................................................................................................................... 50 Tornados and Wind Storms ................................................................................................................. 52 Winter Storms ...................................................................................................................................... 55
Human-Caused Hazards ........................................................................................ 57 Armed Attacks...................................................................................................................................... 57 Civil Disturbance .................................................................................................................................. 59 Conventional/Improvised Bombs ........................................................................................................ 61 Cyber Terrorism ................................................................................................................................... 63 Dam Breaches ...................................................................................................................................... 65 Extended Utility, Data, or Telecomm Disruptions ............................................................................... 68 Fires ...................................................................................................................................................... 70 Hazardous Material Releases ............................................................................................................... 72 Nuclear Incidents ................................................................................................................................. 75 Transportation Accidents ..................................................................................................................... 77
Hazards Omitted from Hazard Profiles .................................................................. 79
Assessing Vulnerability to Hazards ........................................................................ 80
CAPABILITIES AND MITIGATION STRATEGY ............................................................... 85
Legal and Regulatory Capabilities ......................................................................... 86 Building Codes...................................................................................................................................... 87 Subdivision, Land Development, and Zoning Ordinance ..................................................................... 87 Floodplain Ordinance/NFIP .................................................................................................................. 88 Stormwater Management Plan/Stormwater Ordinance ..................................................................... 88 Comprehensive Plan ............................................................................................................................ 88 Capital Improvement Plan ................................................................................................................... 89 Emergency Operations Plan (EOP) ....................................................................................................... 89
Administrative and Technical Capabilities ............................................................. 89 County Departments and Authorities .................................................................................................. 90 Emergency Management Coordinator ................................................................................................ 91 Intergovernmental Cooperation .......................................................................................................... 92 Municipal Engineering ......................................................................................................................... 92 Plan Interrelationships ......................................................................................................................... 92 Spatial Data, Mapping and Analysis ..................................................................................................... 92 Transportation Improvement Program ............................................................................................... 93
Fiscal Capabilities ................................................................................................. 93 State, Federal, and Private Sector Grants ............................................................................................ 93 Capital Improvement Financing ........................................................................................................... 93 Municipal Authorities .......................................................................................................................... 94
Political Capabilities ............................................................................................. 94 Council of Governments ...................................................................................................................... 94
Institutional Capabilities ....................................................................................... 94 Hazard Mitigation Actions ................................................................................................................... 95
Mitigation Action Matrix ...................................................................................... 97
2010 Mitigation Plan Action Status ..................................................................... 105
APPENDICES .......................................................................................................................... 106
Appendix A: Acronyms ....................................................................................... 107
Appendix B: Planning Team Agencies .................................................................. 108
Appendix C: Public Risk Assessment Survey Results ............................................ 109
MUNICIPAL MITIGATION ASSESSMENT ANNEXES .................................................... 113
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Executive Summary
Chester County Pennsylvania is at risk for being impacted by numerous hazards some of
which include flooding, blizzards, and hazardous materials spills. Past events such as
Hurricane Irene in 2011 and the February 2014 ice storm have caused loss of life and
damages to property, infrastructure, and the economy within the county. Future
emergency events have the potential to negatively impact county residents, visitors,
businesses, government organizations, industries, and farmers. In efforts to reduce the
impact to the community from future events, the County has prepared a Hazard
Mitigation Plan.
The Chester County Mitigation Committee, established in 2003, provides advice to the
Board of Commissioners, the Department of Emergency Services, and other county
departments and agencies on strategies and techniques to eliminate or reduce the loss of
life, destruction of property and damages to the environment from disasters. The
Mitigation Committee provided the framework to develop two planning teams. The
teams focused on determining which natural and human-caused hazards the county is
most vulnerable and develop actions that would reduce the impact from those hazards.
Numerous stakeholders were brought into the planning process to ensure the needs of the
community were assessed from multiple angles. Planning teams incorporated multiple
county departments and agencies as well as representatives from outside Chester County
government including municipal, state, federal, and private sector employees. Public
feedback was integrated throughout the entire planning process to ensure the mitigation
plan was focused on the correct concerns, issues, and needs of the community. This
update of the Hazard Mitigation Plan expanded the 2010 mitigation plan by including
human-caused hazards in addition to the traditional focus on natural hazards.
The overarching mission and goals of the mitigation plan, as well as profiles for each
disaster were updated to accurately represent the community and potential impact from
future events. The planning teams went through a risk assessment process to determine
which hazards have the highest potential to impact the county. The County’s current
capabilities to respond to disasters were then assessed. This led to a gap-analysis to aid
in determining the best use of future time, money, and effort towards mitigation. The
final step was the planning teams developing a listing of potential mitigation actions
which could be beneficial in reducing impact from the most probable hazards.
Most disasters within the county are not localized to one municipality. To develop a
coordinated plan and use planning time efficiently, the hazard mitigation plan
encompasses the County and all of the municipalities within the county. However, there
are local considerations that need to be taken into account for variations in risk and the
differing levels of municipal capabilities. Each municipality has a section within the Plan
to identify their local risks, capabilities, and potential mitigation projects.
The Hazard Mitigation Plan will serve as a blueprint for sustaining current initiatives and
undertaking new projects in an effort to save lives, protect community assets, and
preserve economic viability during future disasters.
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Overview
When a disaster occurs, it affects some segments of the population more than the
other segments; the ability of a community to recover effectively from a disaster
begins with its efforts in pre-disaster preparedness, mitigation and recovery capacity
building. These efforts result in a resilient community with an improved ability to
withstand, respond to and recover from disasters. The building block of hazard
mitigation is to assess the risks, determine current capabilities, and then identify areas
that can be improved upon. This Plan strives to capture County, municipal, private
sector, non-governmental, and community organizations’ capabilities to mitigate
future disasters.
Hazard mitigation is the use of long- and short-term strategies to reduce or alleviate
the loss of life, personal injury, and property damage that can result from a disaster. It
involves strategies such as planning, policy changes, programs, projects, and other
activities that can mitigate the impacts of hazards. The responsibility for hazard
mitigation lies with many, including private property owners; business and industry;
and local, state and federal government.
Purpose
The purpose and intent of the Chester County Hazard Mitigation Plan is to reduce the
impact of those hazards there by lowering the losses to life, property, and the
environment caused from a future disaster event.
The federal Disaster Mitigation Act (DMA) of 2000 (Public Law 106-390) requires
state and local governments to develop hazard mitigation plans as a condition for
federal grant assistance. The DMA emphasizes the importance of community
planning for disasters before they occur.
The DMA promotes sustainability as a strategy for disaster resistance. “Sustainable
hazard mitigation” includes the sound management of natural resources, local
economic and social resiliency, and the recognition that hazards and mitigation must
be understood in the largest possible social and economic context. The enhanced
planning called for by the DMA helps local governments articulate accurate
mitigation needs, resulting in faster allocation of funding and more cost-effective risk
reduction projects.
DMA compliance is only one of multiple objectives driving this planning effort.
Chester County’s long-standing tradition of proactive, progressive planning and
program implementation is enhanced by the development of this plan update.
Elements and strategies for the update were selected because they meet a program
requirement and because they best meet the needs of the citizens within Chester
County. This Plan identifies resources, information, and strategies for reducing risk
from hazards. It will also help guide and coordinate mitigation activities throughout
the county. Benefits of the planning effort include the following:
Allows the county to be proactive instead of reactive
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Focuses on sustainability in the identification of projects
Supports the other components of emergency management: preparedness,
response and recovery
Gains both political and public support for initiatives that reduce risk of
hazards
Coordinates existing plans and programs so that high-priority initiatives and
projects to mitigate possible disaster impacts are funded and implemented
Applicability and Scope
This Hazard Mitigation Plan will serve to identify the hazards that are of greatest risk
to Chester County, identify current capabilities at that municipal and County level,
and address potential mitigation actions for natural, human-caused, and technological
hazards. This Plan is designed to complement the Chester County Emergency
Operations Plan (EOP) and is not intended to supersede any emergency response
and/or continuity plans for Chester County. This Plan also builds upon the hazard
vulnerability assessment that was conducted for Chester County.
This Plan applies to Chester County, as well as all the municipalities within the
county that were a part of this planning effort. Through a coordinated plan, various
levels of government agencies and outside stakeholders can work together to reduce
the impacts of future disasters.
Mission and Goals
Mission
The mission of the Chester County Hazard Mitigation Plan is to protect lives,
property, infrastructure, and environmental and community resources by identifying
and encouraging implementation of mitigation actions to reduce impacts of disasters.
Goals
The established goals of the Chester County Hazard Mitigation Plan are for Chester
County to coordinate with municipalities and other stakeholders to:
1. Reduce the risk to public safety and public health
2. Reduce personal and property disaster losses
3. Increase disaster resilience of public and private infrastructure
4. Ensure that new and replacement construction is hazard resistant and does not
lead to increased hazard risk or exacerbate the effects of hazards
5. Identify, encourage, and implement cost effective hazard mitigation measures
6. Raise awareness of and encourage participation in hazard mitigation within the
community
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Authorities and References
Authorities The Multi-Jurisdictional Hazard Mitigation Plan is authorized and enabled under the
authorities listed below:
The Robert T. Stafford Disaster Relief and Emergency Assistance Act, Public
Law 93-388, as amended.
Code of Federal Regulations (CFR), Title 44, Parts 79.4, 201 and 206;
Disaster Mitigation Act (DMA) of 2000, Public Law 106-390, as amended
Presidential Policy Directive 8, National Preparedness, March 30, 2011.
The Pennsylvania Emergency Management Services Code (35 Pa CSA § 7101 et.
seq.)
Pennsylvania Municipalities Planning Code of 1968, Act 247 as reenacted and
amended by Act 170 of 1988.
Pennsylvania Stormwater Management Act of October 4, 1978. P.L. 864, No. 167
References Chester County Emergency Operations Plan
Chester County Department of Emergency Services, Hazard Vulnerability Analysis, July
2009
Pennsylvania Emergency Management Agency (PEMA) State Hazard Mitigation Plan
FEMA 386 Series – Mitigation Planning Documents
Chester County Planning Commission (CCPC)
Chester County Water Resources Authority
Delaware Valley Regional Planning Commission
Pennsylvania State Climatologist, http://pasc.met.psu.edu/PA_Climatologist/index.php
United States Census Bureau
United States Department of Commerce, National Oceanic and Atmospheric
Administration (NOAA), National Climatic Data Center (NCDC)
United States Department of the Interior, United States Geological Survey (USGS),
National Earthquake Information Center
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Update and Maintenance
This Plan will continually evolve and will therefore need ongoing maintenance. The
Chester County Multi-Jurisdictional Mitigation Plan will be reviewed each March.
The Department of Emergency Services (DES) will be the lead agency for reviewing
and making minor revisions and status tracking related to the plan.
A comprehensive update will be completed every five years as outline by the Federal
Emergency Management Agency. The focus will be on validating goals, re-assessing
risks, and updating mitigation actions. Updates will incorporate lessons learned from
exercises or real incidents as outlined in After-Action Reports, an updated hazard
analysis and risk assessment as well as changes in local, state or federal planning
context, and/or examination of evolving national best practices.
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Community Background
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Chester County, Pennsylvania is vulnerable to a variety of natural, human-caused, and
technological hazard events that have the potential for causing damage to life, property
and the environment.
Chester County, by virtue of its geographic location and topography, is subject to natural
hazards such as flooding, winter storms, droughts, tornados, and earthquakes.
Historically, all of these hazards have affected or threatened the county. Major
snowstorms and flooding have the greatest potential to cause significant disruptions.
The threat of terrorism is always present; however, the human-caused and technological
hazards extend past just acts of terrorism. Increased use of transportation methods in the
Philadelphia suburbs, the increase reliance on computers and data systems, and aging
infrastructure increases the risk exposure to both human-caused and technological
hazards.
County Profile
Chester County, founded in 1682, is located in the major northeastern complex of
metropolitan areas stretching from Boston to Washington, D.C. This corridor contains the
largest concentration of population and jobs in the nation. Chester County (Figure 1) is
located in southeast Pennsylvania, west of the City of Philadelphia and covers 760 square
miles.
Chester was one of the three Pennsylvania counties, along with Philadelphia and Bucks,
initially created by William Penn on August 24, 1682. At that time, Chester County's
borders were Philadelphia County to the north, the ill-defined western edge of the colony
(approximately the Susquehanna River) to the west, the Delaware River to the east,
and Delaware and Maryland to the south. Chester County replaced the Pennsylvania
portion of New Netherland/New York’s Upland, which was officially eliminated when
Pennsylvania was chartered on March 4, 1681, but did not cease to exist until June of that
year. Much of the Welsh Tract was in eastern Chester County, and Welsh place names,
given by early settlers, continue to predominate there.
The original Chester County seat was the city of Chester, a center of naval shipbuilding,
at the eastern edge of the county. In an effort to accommodate the increased population of
the western part of the county, the county seat was moved to a more central location in
1788; the village, known as Turk's Head, was renamed West Chester. On September 26,
1789 the eastern portion of the county separated from Chester County becoming
Delaware County.
Much of the history of Chester County arises from its location between Philadelphia and
the Susquehanna River. The first road to "the West" (meaning Lancaster County) passed
through the central part of Chester County, following the Great Valley westward; with
some re-alignments, it became the Lincoln Highway and later U.S. Route 30. The first
railroad (which became the Pennsylvania Railroad) followed much the same route, and
the Reading Railroad progressed up the Schuylkill River to Reading. Industry tended to
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concentrate along the rail lines. Easy transportation allowed workers to commute to urban
jobs, and the rise of the suburbs followed.
Figure 1. Geographic Setting of Chester County (Chester County GIS, 2013)
The County shares its southeast border with the State of Delaware and its southern border
with the State of Maryland. In addition, Chester County borders Lancaster County on the
west, Berks County on the northwest, Montgomery County on the northeast, and
Delaware County on the east (Figure 2). The Schuylkill River forms the county’s
northern limits, while on the west it is partially bounded by the Octoraro Creek. The
historic Brandywine Creek forms part of its eastern border.
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Figure 2. Regional Setting of Chester County (Chester County GIS, 2013)
Valley Forge National Historical Park lies on the boundary of Chester and Montgomery
Counties. The National Park Service assumed ownership of Valley Forge in 1977, and
several improvements have been made since then to inform visitors of the significance of
this Revolutionary War site. Hopewell Big Woods National Historical Site straddles the
boundary between Chester and Berks Counties. The 100-square-mile Hopewell site is
one of the last major woodlands in the Boston to Washington, DC corridor. The
Schuylkill River Heritage Area encompasses the northern 1/3 of the county. Other
national historic sites include the Brandywine Battlefield.
The rich cultural heritage of the County is apparent by the large number of cultural
groups and organizations throughout the area. Among these offerings are the Kennett
Symphony Orchestra, Chester County Historical Society and Museum, and People's
Light and Theatre Company. The Hadley Foundation sponsors free national and
international speakers and programs in the Kennett area.
Chester County is a favorite destination of many tourists who travel the eastern United
States. One of the most beautiful and famous horticultural sites in the nation is
Longwood gardens. The gardens, a short distance from the historic Brandywine
Battlefield, were an underground railway stop and gathering place for many runaway
slaves prior to the Civil War. The gardens offer 1,077 acres of incredible indoor and
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outdoor beauty year round. Several villages in Chester County represent architectural
periods of the past and interesting farm buildings and covered bridges dot the
countryside. Another historical place of interest is the Nottingham Serpentine Barons
(630 acres), which is a part of the largest occurrence of serpentine barrens in the eastern
United States.
Chester County’s character comes from its enduring history. The county contains a
great many historic resources that have retained their historic integrity and context,
dating back centuries to our nation’s earliest settlements. The history and development
patterns of the county have helped define current land use patterns, the road system,
economics, various points of interest, and they provide an identity of place. Chester
County ranks second, only after Philadelphia, in the number of resources listed on the
National Register of historic Places in Pennsylvania.
Government Structure
A three-person Board of Commissioners administers Chester County government,
located in the county seat of West Chester. The commissioners have selective policy-
making authority to provide certain local services and facilities on a countywide basis.
Accordingly, the commissioners are responsible for the management of the fiscal and
administrative functions of the county. Pennsylvania being a commonwealth, a lot of the
right and duties reside with the municipal elected officials.
An elected body comprised of supervisors or councils (depending on the municipal
designation) governs each of the 73 municipalities (Figure 3). Each municipality is
responsible for establishing and administering municipal financial budgets and tax rates,
as well as being responsible for land use controls through zoning and subdivisions
regulations and building permits. Local officials are also responsible for providing
services related to road maintenance, police, fire, and emergency medical services.
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Figure 3. Municipalities of Chester County (Chester County GIS, 2013)
Educational Institutions
There are 12 public school districts in Chester County, ranging in size from large
suburban to small rural. The school districts provide primary and secondary education to
the residents within the County. The Chester County Intermediate Unit (CCIU) acts as a
liaison between and provides services to the school districts as well as many of the area
non-public schools. The CCIU extends services to nearly 86,000 public and non-public
school students and over 6,000 educators.
There are a number of higher education institutes within Chester County. West Chester
University is located in the County seat and has student enrollments of around 15,000
students. Lincoln University is located in the southern end of the County provides a
liberal arts and science-based undergraduate core curriculum and has numerous notable
alumni, including U.S. Supreme Court Justice, Thurgood Marshall. Immaculata
University and Valley Forge Christian College are located within the County and offer
multiple theological study concentrations at both the undergraduate and graduate level.
One of Penn State’s satellite campuses, Great Valley campus, is located in East
Whiteland Township and offers a wide range of graduate level curriculums. Delaware
County Community College also has a satellite campus located in the Downingtown area.
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Population Projections
Chester County has attracted residential development in part due to its beautiful
landscapes combines with a close proximity to employment opportunities. The current
composition of the population in Chester County, from the most recent census conducted
in 2010, is outlined in Table 1.
Chester County Stats
2010 Population = 498,886
Population 55 and Older = 125,447
Number of Total Housing Units = 192,462
Number of Occupied Housing Units = 182,900
Number of Housing Units built before 1970 = 70,660
Unemployment Rate = 5.0%
Table 1. Chester County Statistics (U.S. Census Bureau, 2010)
The Delaware Valley Regional Planning Commission (DVRPC) has prepared population
data, including projections up to the year 2040. The population within the County is
growing at a higher rate than populations in the surrounding counties as shown in Table
2.
County 2000
Census
2010
Census
2020
Forecast
2030
Forecast
2040
Forecast
% Change
2010-2040
Chester 433,512 498,886 538,809 607,407 647,330 29.8%
Bucks 597,636 625,249 654,140 692,440 727,150 16.3%
Montgomery 748,978 799,874 823,564 873,361 894,486 11.8%
Philadelphia 1,517,550 1,526,006 1,551,247 1,599,436 1,630,589 6.9%
Delaware 551,989 558,979 560,986 567,976 569,983 1.50%
SE PA Region 3,849,665 4,008,994 4,128,746 4,340,620 4,469,538 11.5%
Table 2. Regional Population Comparison (DVRPC, 2013)
The population is clustered along the major transportation corridors throughout the
county with larger numbers of people located in the eastern half of the County (Figure 4).
This clustering of the population along those transportation corridors makes transit into
Philadelphia and throughout the region easier, making Chester County a perfect location
for residents to commute to Philadelphia and other major metropolitan cities in the area.
Chester County has two distinct subculture groups. There is a large Hispanic population
in the southern half of the County. In addition, along the western border is a large
population of Pennsylvania Dutch. Both of these subcultures bring their own unique
aspect to the overall county make-up and affect the methods undertaken for hazard
mitigation.
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Figure 4. Population Density (U.S. Census Bureau, 2010)
Land Use
Today, a good portion of Chester County's 760 square mile area is still used for
agriculture. However, the major portion of the county’s economy is spread through the
trade and manufacturing industries.
The existing land use pattern reflects continued suburban expansion from Philadelphia
into eastern Chester County. This development includes non-residential, as well as
residential uses, making the eastern area of the county more urban in character.
Elsewhere in Chester County, the pattern reflects the continued spread of primarily
residential development into rural areas, making them more suburban in character. The
most intensive development is located in eastern Chester County, along the Route 30
corridor through the center of the county, and along the Route 1 corridor in the south
(Figure 5).
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Figure 5. Chester County Future Land Use Plan (Chester County Planning
Commission, 2013)
Out of the approximate 490,000 acres of land in the County the existing land use in
Chester County is summarized in Table 3. The largest land use category is agriculture,
followed by residential, then by woodlands.
Land Use Approximation Summary
Agriculture – 171,000 acres
Residential – 129,000 acres
Woodlands – 128,000 acres
Commercial – 10,000 acres
Industrial – 3,200 acres
Table 3. Chester County Land Use Approximation Summary (Chester County GIS, 2014)
Economy
Chester County has traditionally enjoyed a strong, stable, and diverse economy.
Employment and other economic indicators are consistently among the best in the region,
and better than those of the state and the nation. The diversity of our economy is a major
factor in the prosperity that Chester County enjoys. Chester County contains some of the
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major employment centers of the metropolitan regions, and is no longer merely a
bedroom suburb of the city. Not dominated by a single industry or sector, the county is
less vulnerable to fluctuations in the business cycle.
Chester County ranks second in Pennsylvania, only after adjacent Lancaster County, for
farm production. The county contains productive agriculture Piedmont soils that do not
require irrigation. As a result, agriculture remains a prominent industry in the county,
especially in southern Chester County. The mushrooms grown in Chester County
provide for approximately 40% of the national consumption of mushrooms. Figure 6
depicts that revenue (in millions) of the agriculture sector. In addition, about three out of
every ten acres of protected open space in the county is farmland that has been protected
with an agricultural conservation easement.
Figure 6. Chester County Agriculture Sector: Revenue in Millions of Dollars.
(DUNS, 2011)
Industrial land use includes manufacturing uses which are located primarily in
established urban centers, such as Coatesville, Downingtown, West Chester, and
Phoenixville. Figure 7 depicts the revenue of the manufacture industry in Chester
County.
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Figure 7. Chester County Manufacture: Total Revenue (DUNS, 2011)
The county has seen an influx of corporate headquarters, industrial parks, and businesses;
particularly in the eastern and central sectors. It also includes light industrial uses, such
as assembly lines, warehouses, and research and development facilities. Commercial land
uses are concentrated in the urban centers (Coatesville City and the boroughs) and along
the major highways. The largest concentrations are near Route 202 and Route 30.
Housing
Housing that is affordable to the workforce is critical to the local economy, and directly
impacts the ability of employers to recruit and retain staff. Chester County has a range of
housing options available with a good balance of housing types, sizes, and costs. The
housing trend has followed the population and employment growth in Chester County
(Table 4).
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Year Total Units Number Change Percent Change
1930 29,655 N/A N/A
1940 33,046 3,391 11.4
1950 42,143 9,097 27.5
1960 58,974 16,831 39.9
1970 80,457 21,483 36.4
1980 110,183 29,726 36.9
1990 139,597 29,414 26.7
2000 163,773 24,176 17.3
2010 192,462 28,689 17.5
Table 4. Chester County Housing Units (U.S. Census Bureau, 2010)
Infrastructure
Chester County has experienced a population boom over the past decade due to its
popularity as a place to live and work. This population growth has led to widespread
expansion of infrastructure systems throughout the county, from public sewer and water
systems to power and cellular phone communications services. Overtime, some of this
infrastructure expansion has lacked coordinated planning.
Transportation is the artery of our daily life, as it facilitates the movement of people and
goods. The county has an extensive network of major highways (Figure 8), including the
Pennsylvania Turnpike (Interstate 76). There are 1,067 bridges and approximate 3,600
miles of roadway within the County. It is estimated by the 2010 census that 81.3% of the
Population drove to work, 7.5% carpooled, and 2.7% used public transportation.
The County has a lot of infrastructure that provides critical services to the residents. This
includes five acute care hospitals, five specialty hospitals, two correctional facilities, 23
long term care healthcare facilities, and 97 emergency response stations offering fire,
ambulance, or police coverage.
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Figure 8. Chester County Highways.
Geology and Topography
The remarkably diverse geology of Chester County has greatly influenced community
development, the economy, and infrastructure since pre-colonial times. Chester County
lies entirely within the Piedmont Geomorphic Province, split into three sections: 1) the
Newark Lowland Section along the northern boundary of the county, 2) the Piedmont
Upland Section, and 3) the Piedmont Lowland Section that forms the Great Valley
extending from West Sadsbury Township to Tredyffrin Township.
One-third of Earth's geologic history is recorded in the rocks of Chester County. The
rocks of the Piedmont Upland Section are predominantly comprised of lower Paleozoic to
Precambrian felsic to mafic gneisses and metagranite, mica schist, and isolated bands of
serpentinite and marble. The Piedmont Lowland Section is composed principally of
lower Paleozoic carbonates and lesser quantities of quartzite and phyllite. The Newark
Lowland Section includes the southern margin of the Mesozoic Rift Basin that developed
due to continental rifting of Pangaea during the early Mesozoic. The basin is filled with
mudstone, sandstone, and conglomerate, intersected by diabase dikes.
Geologic hazards in Chester County include (but are not limited to) sinkholes, landslides,
earthquakes, and radon. The diverse geology of Chester County has provided great
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mineral wealth to the county. Over 500 mines and quarries have operated in Chester
County since the mid-18th Century. The county also faces geologic hazards resulting
from the physical and chemical properties of these rocks, tectonic forces, landscape,
climate, and human influence. The carbonate rocks within the Great Valley are readily
weathered by dissolution, which produces caves and sinkholes. This region includes
hundreds, perhaps thousands, of sinkholes and enclosed depressions that lie beneath
county infrastructure such as buildings, railroads, and highways. Minor landslides and
creep are common in the mature soils of Chester County. Landslide risk is relatively low
due to the topography of the county (Figure 9), however, and is usually related to over
steepened slopes associated with urbanization and infrastructure development.
Earthquake risk in the county is low due to the relatively stable tectonic setting of the US
East Coast. Lastly, radon is a geologic health threat for the residents of Chester County.
Radon is an odorless, radioactive gas released by uranium-bearing minerals present in a
variety of rocks in the county (predominantly in the Piedmont Upper Section).
Fortunately, household radon can be mitigated by installation of a sub-slab gas extraction
system.
Figure 9. Chester County Topography (Chester County GIS, 2014)
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Hydrology
Chester County is comprised of over 760 square miles of land area lying within 21
watersheds that include nearly 2,300 miles of streams. These watersheds drain from
Chester County downstream to six counties in three states (PA, DE, and MD).
The Schuylkill River forms the northeastern boundary of Chester County and is by far the
largest stream affecting the County. The East Branch Octoraro Creek and Octoraro
Reservoir form the southwestern boundary of the County. The largest watershed within
Chester County is the Brandywine Creek watershed. Because of the size of their drainage
areas and volume of flood flows, the Schuylkill River and Brandywine Creek present the
most significant flood risks for the County. Smaller watersheds are also prone to
localized flooding including French Creek, Red Clay Creek, (East) Valley Creek, Valley
Run, and Trout Creek, among others. Across Chester County, over 250 locations of
repeat flooding problems have been identified. Five flood control dams were constructed
in Brandywine Creek watershed to reduce flood impacts to the Brandywine Creek
communities.
The streams of Chester County are fed by groundwater from underlying aquifers and
rainfall runoff. All geologic units in Chester County are considered to be aquifers and are
recharged by infiltration of precipitation through their overlying soils. The groundwater
resources and surface water resources within Chester County provide water supply for the
County. Approximately 60% of the County’s population relies on public water supplies
(from groundwater and/or surface water sources) and 40% relies on individual domestic
wells. Thus, protection of natural recharge and infiltration is essential to sustaining the
availability of groundwater and stream flows for water supplies for humans and for
aquatic and wildlife resources.
Because stream flows vary significantly based on weather conditions, public water
suppliers rely on reservoirs to provide additional flows to support surface water
withdrawals during periods of low stream flows. There are six water supply reservoirs in
Chester County (Chambers Lake Reservoir, Marsh Creek Lake, Rock Run, Octoraro
Reservoir, Pickering Creek Reservoir, and West Chester Reservoir).
Approximately 85% of the County is in watersheds that drain to Delaware Bay and the
remaining 15% is in watersheds that drain to the Chesapeake Bay. Figure 10 presents a
map of the watersheds of Chester County.
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Figure 10. Watersheds of Chester County (CCWRA, 2006)
Climate
Looking at historical trends, Chester County is characterized by a humid continental
climate that is modified by its proximity to both the Atlantic Ocean and the Appalachian
Mountains (Table 5). Most low-pressure weather systems that affect the area develop in
the Midwest and move eastward under the influence of the prevailingly westerly flow or
form in the southeastern United States and track northward along the east coast. Due to
the long overland trajectory, cold Canadian high-pressure air masses are usually
considerably modified by the time they reach this portion of Pennsylvania, picking up
warmth from the underlying land and moisture from the Gulf of Mexico and the Atlantic
Ocean.
Chester County experiences moderately cold weather during the winter months (Table 6),
which may include snowstorms, blizzards, freezing rain, and ice. The increased
frequency of low-pressure systems and frontal passages give more cloudiness during the
winter season with limited sunshine finding its way through the clouds and reaching the
ground during this time of the year.
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Annual Climate Statistics
Average Annual Temperature: 52.12 ºF
Average Annual Precipitation: 45.98 inches
Average Annual Snowfall: 26.03 inches
Average Annual Humidity: 73.55%
Average Annual Wind Speed: 16.45 mph
Table 5. Annual Climate Statistics (NCDC, 2014)
Winter Climate Statistics (December – February)
Record High Temperature: 78 ºF (set February, 1930)
Record Low Temperature: -16ºF (set February, 1934)
Average Daytime High Temperature – Mid 40’s ºF
Average Nighttime Low Temperature- Low 20’s ºF
Average Daytime Sunshine received – <50%
Average Prevailing Wind Speed – 10mph (from the west northwesterly)
Table 6. Winter Climate Statistics, December – February (NCDC, 2014)
The first snowfall of any consequence usually occurs in late November or sometime in
December (Table 7). Usually the snow cover disappears rapidly under the relatively mild
winter temperatures. The threat of snow diminishes rapidly after mid-March.
Snowstorm Statistics
Average Annual Snowfall: 26.03 inches
Average Snow Accumulations - 5-10 inches
Record Accumulation - 30 inches (set March 21-22, 1958)
Longest Ground Coverage Period - 37 Days (set January and February 1936)
Average Days of 1 inch or more of snow: 27.4 days
Days of 6 inches or more - Est. 6 days per year
Table 7. Snowstorm Statistics (NCDC, 2014)
The summer months are generally warm and humid. Extended periods of hot and humid
weather do occur as the nearby maritime influence produces a uniform weather pattern
(Table 8). Cloud cover is at a minimum in the summer with a majority of the available
sunshine received while nights are generally clear. Most of the summer season rainfall is
supplied by thundershowers, which are recorded on the average from June through
August.
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Summer Climate Statistics (June – August)
Record High: 105 ºF (set July, 1936)
Record Low: 35 ºF (set June, 1972)
Average Temperature - 75ºF
Average Low - 50ºF
Average Daytime High Temperature – Low 80’s ºF
Average Nighttime Low Temperature- Low 60’s ºF
Average Temperature Duration – 90ºF for 22 days/per year
Average Daytime Sunshine received – 65%
Average Prevailing Wind Speed – 8mph (from the South)
Table 8. Summer Climate Statistics, June – August (NCDC, 2014)
Spring and fall are the transition periods; winds are west northwesterly at the start of
spring and back to southwesterly by late spring. As fall progresses the prevailing winds
gradually swing back to the west-northwest once again. Wind speed averages 8 to 10
mph during both spring and fall. By the latter part of April daytime highs in the 70s are
noted more and more frequently; and after the warm summer, these 70-degree
temperatures usually persist well into October. Extended periods of dry weather are
seldom experienced, but have occurred. The warm dry fall days with abundant sunshine
enhancing the autumnal change in colors represent one of the most pleasant times of the
year.
A little over one half the annual precipitation falls in the spring and summer (Table 9).
While primarily a warm season phenomenon, thunderstorms have been observed every
month of the year.
Precipitation Statistics
Average Annual Precipitation: 45.98 inches
Average Number of days with 0.1 inch or more of precipitation in a year: 78.09 days
Record Month of Precipitation – 15.58 inches (set August 1955)
Record Location of Precipitation – 8.75 inches (Downingtown Borough, 9/15/2003)
Annual Average of Summer Thunderstorms Days - 22 Days
Annual Average of Thunderstorms Days - 37 Days
Table 9. Precipitation Statistics (NCDC, 2014)
Recently tropical storms and hurricanes have been impacting the area. The major impact
from these storms are the 3 to 6-inch or more of torrential rains that cause flash flooding
problems and high speed winds. Some damages due to wind and hail associated with
severe thunderstorms are recorded somewhere in Chester County each year. While
tornados have been noted and have occurred in the past, the chances of one striking any
particular area in Chester County are slight.
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Planning Process
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Chester County used the process outlined by the Federal Emergency Management
Agency (FEMA) in the local hazard mitigation planning handbook. Those steps are to
determine the planning area and resources, build the planning team, create an outreach
strategy, review community capabilities, conduct a risk assessment, develop a mitigation
strategy, and implement then monitor progress.
Determine the planning area and resources
This Hazard Mitigation Plan encompasses all of the area within the County of Chester,
Pennsylvania. The County is made up of 73 individual municipalities, each having their
own elected leadership and management structure. With the number of municipalities
and the nature of disasters to cross jurisdictional boundaries, a countywide multi-
jurisdictional hazard mitigation plan encompassing all of the municipalities would be the
most beneficial.
On August 14, 2003, the Chester County Commissioners established the Chester County
Hazard Mitigation Committee. The committee provides advice to the Board of
Commissioners, the Department of Emergency Services, and other county departments
and agencies on strategies and techniques to eliminate or reduce the loss of life,
destruction of property and damage to the environment from disasters. The committee
convenes a minimum of once annually to track implementation of the current hazard
mitigation plan.
Build the planning team
The Chester County Hazard Mitigation Committee provides a logical starting point for
forming planning teams to update the mitigation plan. The 2010 version of the mitigation
plan only focused on natural hazards. During this update, it was prudent to look at
natural hazards as well as human-caused and technological hazards. To utilize
stakeholder time efficiently two planning teams were formed which reported to the
Mitigation Committee.
The first planning team focused on natural hazards. The team was comprised of
representatives from county departments, municipalities, and other stakeholders. The
planning team composition was very similar to the planning team for the 2010 mitigation
plan. The second team focused on human-caused and technological hazards. This new
topic required developing a list of potential stakeholders that could play a major role in
the identification, response, recovery, or mitigation of human-caused hazards. A full
listing of the agencies involved with the two planning teams can be found in Appendix B.
During this plan update the municipalities were tasked with providing a greater role in
identifying the hazards within their community and areas for potential mitigation
projects. A jurisdictional assessment team convened for each municipality to address
municipal specific concerns. The jurisdictional assessment team was comprised of a
representative of Chester County Department of Emergency Services and multiple
members of each municipality. The attendees for each municipal assessment included at
least the emergency management coordinator or the municipal manager. Some municipal
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assessments included police chiefs, code enforcement officials, engineers, public works
directors, fire marshals, and/or municipal elected officials. The group of municipal staff
with diverse backgrounds enhanced the value of this plan with local knowledge
pertaining to hazards and possible mitigation projects. The municipal assessments were
conducted in person and/or virtually. The end result of each municipal jurisdiction
assessment meeting is the municipal specific sections of this plan.
During the first nine months the planning teams met monthly and the Hazard Mitigation
Committee met quarterly. After that the planning teams met every bimonthly and the
Mitigation Committee semi-annually. The entire planning process took two years to
complete. The concentrated meetings in the beginning of the planning process allowed
for the majority of the risk assessment, review of capabilities, and mitigation strategies to
be developed. After that information was discussed and decided upon, the meeting
schedule expanded to allow time for the municipal specific assessments to occur as well
as time to develop the plan. After the plan was developed, the committee meetings
focused on involvement of the public in review of the entire draft plan.
Create an Outreach Strategy
The Mitigation Committee sought contributions from everyone that would be impacted
by disasters within the County. The public plays a major role in hazard mitigation. The
public is always invited to attend the Hazard Mitigation Committee meetings. A public
notice is placed in the local newspaper, on the county website, and on social media prior
to any Hazard Mitigation Committee meeting. Additionally for this update, the public
was involved in three different phases of the plan update.
Phase 1. The first major interaction with the public came during the risk assessment
process. A public survey was developed to collect data on the public view of the hazards
of greatest concern for Chester County. A ten question survey was developed in which
the public selected what they felt are the top hazards in both the natural hazards and the
human-caused hazard categories. The survey also asked the respondents which, if any,
hazards they have experienced while living in Chester County. The public was then
given the opportunity to provide ideas of potential mitigation actions to address those
hazards. Lastly, the survey allowed a mechanism for those interested to leave their
contact information for further inclusion in the planning process.
The survey was disseminated to the public through press releases, emailing to all of the
County’s emergency management partners, posting on county and municipal websites,
flyers at libraries and municipal offices, and through social media. Multiple local
newspapers, a local radio station, municipal newsletters, and other community mailings
contained information about the survey. The survey was open for a ten week period and
received 2,069 public responses. Graphs of the overall responses from the public survey
can be found in Appendix C. Results from the survey suggested some overall mitigation
actions; 731 people suggested planning efforts, 573 suggested educations efforts, and 294
thought additional communications and warning would help reduce the impact from
future disasters. Twenty-five percent of the people that participated in the survey left
their contact information for further follow up about the mitigation planning.
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Phase 2. Those who left their contact information were utilized as the next phase of
incorporating the public in the planning process. As sections of this plan were developed
they were reviewed by the planning teams, then the section was sent out to those
members of the public to provide comment. Having a small group of members of the
public review sections of the plan while it was being developed provided the opportunity
to change some content and identify additional areas to expand upon prior to the full first
draft of the plan being complete.
Phase 3. Upon completion of the draft plan, the third phase of public involvement was
implemented. The entire draft plan was published for review by the public. The review
process was advertising through multiple methods. Initially it was advertised through
press releases, emailing to the county’s emergency management partners, positing on
county and municipal websites, and though social media. Multiple local newspapers,
municipal newsletters, and other community mailings contained the information about
the plan availability. A form for submitting comments on the plan accompanied the draft
plan and provided an organized method to collect those comments.
Review community capabilities
Hazard mitigation planning should include review and incorporation, if appropriate, of
existing plans, studies, reports and technical information. Due to the makeup of the
Commonwealth and individual municipalities having substantial power, the laws and
ordinances in effect within each municipality are outlined in the municipal specific
section of the plan. An assessment of the County’s regulatory, technical, and financial
capabilities to implement hazard mitigation initiatives is outlined in Capabilities and
Mitigation Strategy Section.
Conduct a risk assessment
One of the key elements to the hazard mitigation planning process is the risk assessment.
In performing a risk assessment, a community determines which hazard may occur, how
often it is likely to occur, and potential impact from that hazard. The primary
components of a risk assessment that answer these questions are generally categorized
into the following measures:
Hazard Identification and Screening
Hazard Profiling
Assessing Vulnerability to Hazards
The risk assessment for Chester County and the municipalities within Chester County
was performed using a countywide, multi-jurisdictional perspective. An integrated
approach was employed because many of the same hazards are likely to affect numerous
jurisdictions, and are rarely contained to a single jurisdiction. The vulnerability analysis
was performed in a way such that the results reflect vulnerability at both an individual
jurisdictional and countywide level.
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The culmination of the risk assessment process resulted in a revised list of hazards that
will be carried forward with this updated mitigation plan, which include:
Natural Hazards
Thunderstorms
Flooding (including stormwater floods)
Winter storms
Tornadoes and Windstorms
Drought
Human Caused and Technological Hazards
Public gatherings
1. Civil disobedience
2. Conventional/improvised bombs
3. Armed attacks
Transportation
1. Transportation accidents
2. Hazardous material releases
3. Extended utility data or telecommunication outages
Industrial locations
1. Extended utility data or telecommunication outages
2. Cyber terrorism
3. Hazardous material releases
The hazard identification process, hazard profiles, risk assessment process, and an outline
of which hazards were purposely omitted from this assessment are outlined in further
detail in the Risk Assessment Section. Each municipality was given an opportunity to
change the risk priority for their specific jurisdiction. Any change to the countywide risk
priority is outlined in their individual municipal specific section.
Develop a mitigation strategy
Hazard mitigation is the use of long- and short-term strategies to reduce or alleviate the
loss of life, personal injury, and property damage that can result from a disaster. It
involves strategies such as planning, policy changes, programs, projects, and other
activities that can mitigate the impacts of hazards. It is important to coordinate the
various potential mitigation actions so that they are working in conjunction with each
other. An overall mission and five goals have been developed and refined to guide the
development of mitigation actions.
Chester County Mitigation Plan Mission Statement
The mission of the Chester County Hazard Mitigation Plan is to protect lives,
property, infrastructure, and environmental and community resources by identifying
and encouraging implementation of mitigation actions to reduce the impacts of
disasters.
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Goals are general guidelines that explain what is to be achieved. They are broad-based,
long-term, policy-type statements, and represent global visions. Goals help define the
benefits that the plan is trying to achieve. The success of the hazard mitigation plan
should be measured by the degree to which its goals have been met.
Chester County Mitigation Plan Goals
1. Reduce personal and property disaster losses within Chester County
2. Increase disaster resilience of public and private infrastructure
3. Ensure that new construction is hazard resistant and does not lead to increased
hazard risk or exacerbate the effects of hazards
4. Identify, introduce, and implement cost effective hazard mitigation measures
5. Raise awareness of and encourage participation in hazard mitigation within the
community
Each one of the mitigation actions that was developed works toward meeting the goals
and overall mission of the hazard mitigation program. The mitigation strategy and the
countywide mitigation actions are outlined in the Capabilities and Mitigation Strategy
Section. Each municipality has additional, community specific, mitigation actions
outlined in their individual municipal specific section.
Implement the Plan
The Hazard Mitigation Committee is charged with monitoring, evaluating, and updating
all components of this plan. The committee is comprised of a variety of municipal,
county, region, state, and federal stakeholders. The Department of Emergency Services
serves as the leadership for the committee.
The Committee will oversee the progress made on the implementation of the identified
action items and update this plan, as needed, to reflect changing conditions. The
Committee will therefore serve as the focal point for coordinating the countywide
mitigation efforts. The Committee will meet at least once per year. Additional meetings
may be held as needed, particularly in the update process of this plan.
At the annual meeting of the Hazard Mitigation Committee the focus should include at
least the following topics:
Update historical events record based on any events in the past year.
Review county profile and note any major changes and their effect on proposed
mitigation projects
Review accomplishments or progress made toward mitigation projects.
Address any updated major plans and their effect on this plan to include the Basic
Emergency Operations Plan, dam plans, and Landscapes (Comprehensive Plan)
Review any current or potential funding opportunities
Produce a report card to be published to the general public of progress against
goals and any specific targeted milestones that have been identified
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The Committee will monitor the mitigation activities as outlined in this plan. This will be
conducted through a variety of methods to include firsthand knowledge by involvement
in projects and reviewing reports from the other agencies that are responsible for
implementation of the different mitigation actions. Monitoring will not only include
checking whether mitigation actions are implemented or not, but also assessing their
degree of effectiveness. A review of qualitative and quantitative benefits (or avoided
losses) of the mitigation activities will serve as the basis of the evaluation process. The
results will then be compared to the goals and objectives this plan set out to achieve. The
Committee will also evaluate mitigation actions if they need to be discontinued, or
modified in any way in light of new developments in the community. The Committee
will provide feedback to outside agencies as necessary.
Keeping the plan current includes keeping the public involved in hazard mitigation. The
County’s program of keeping the public involved in overall emergency management
serves as a mechanism to continue to raise the community’s awareness of hazard
mitigation, this plan, and the actions identified in this plan. Chester County continually
engages in community activities through a variety of different forums to work towards
the goal of continued public involvement in all areas of emergency management.
Another partner in the County’s mitigation program is the Chester County Long Term
Recovery Committee. While that committee is focused on addressing the needs of the
community post-disaster, the committee will be able to identify areas in which hazard
mitigation will be beneficial.
This plan will receive a major update every five years, as required by the Disaster
Mitigation Act, 2000. The updated plan will account for any new developments in the
community or special circumstances (e.g. post-disaster). Issues that come up during
monitoring and evaluation that require changes in mitigation strategies and actions will
be incorporated in the plan during that update process. The Mitigation Committee will
form the base group that will be involved in updating the plan, with the responsibility for
writing and leading the plan update falling with the Department of Emergency Services.
Minor updates to the plan might need to occur during that 5-year update cycle
particularly if a Presidential Disaster Declaration impacts Chester County, a hazard event
causes loss of life, or if a major update is made to a related plan which impacts this plan.
It will not be the intent of this update process to start from scratch and develop a
completely new hazard mitigation plan. Based on the needs identified by the planning
team, this update will, at a minimum, include the following elements:
Update County demographic and socioeconomic data
Address any new planning documents, ordinances, codes, etc. that have been
developed by the County or cities
The hazard risk assessment will be reviewed and updated using best available
information and technologies
Identify and address how changes in development have impacted each
jurisdiction’s vulnerability
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The mitigation actions will be reviewed and revised to account for any initiatives
completed, dropped, or changed, and to account for changes in the risk
assessment
Review hazards that were omitted from previous hazard mitigation plans and
identify any new hazards within the County to determine potential change in
impact from those hazards
The draft update will be sent to appropriate agencies and organizations for
comment
The public will be given an opportunity to comment on the update prior to
adoption
Review and Adopt the Plan
The first step in reviewing this plan is having the team members review each section as it
was developed, and then presenting sections of the plan to the small group of the general
public identified as being interested in the mitigation plan in the initial public survey.
After the entire plan was completed, the plan went through a public review process
allowing members of the public to comment and provide input into the draft plan prior to
the plan being sent to the state and the federal government for their review.
The public review process included making the plan available on the County’s website,
hard copies in municipal offices, as well as hard copies in the libraries within the County.
Along with the copies of the plan was a form for the public to submit their comments on
the plan. As a part of that review process, public meetings were held. The meetings were
structured to provide an overview of the plan and process and allow members of the
public time to discuss their comments on the plan and provide feedback to be included
into the final edit of the plan.
After the plan goes through the state and federal review process, and receives approval
pending adoption from the federal government, all jurisdictions outlined within this plan
will go through the local process for formally adopting the plan. A governing body’s
formal adoption of a Hazard Mitigation Plan is a prerequisite to receiving the Federal
Emergency Management Agency’s (FEMA) final approval. Adoption of this plan by
Chester County and its municipalities allows each municipality to be eligible for disaster
mitigation grant funds and, also provides each municipality with a thorough
understanding of its vulnerability to various hazards and a blueprint for mitigating
damaging effects.
While developing and updating this plan, certain sections of the County Comprehensive
Plan, Emergency Operations Plan, and various land use ordinances and regulations
provided key information. The County and each participating municipality is responsible
for implementing the specific mitigation actions recommended in this plan into the
necessary planning documents, including the appropriate comprehensive plan, the County
Emergency Operations Plan, and any land use ordinances and regulations.
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Risk Assessment
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Risk assessment is the process of measuring the potential loss of life, personal injury,
economic injury, and property damage resulting from hazards. It focuses on the following
elements:
Hazard Identification
Hazard Profiles
Identify Community Assets
Analyze Risk
Identify hazards of concern
The risk assessment in this plan evaluates the risk of hazards likely in Chester County.
The update of this plan expanded upon the 2010 version of the plan by beginning to
assess human-causes risks, not only risks from natural hazards. The risks identified and
profiled are applicable to all of the jurisdictions within the planning area. If any
exceptions exist to the identified hazards for a specific municipality, those exceptions are
outlined in the municipal specific section of the plan.
Hazard Identification
Hazard identification is the systematic process of using available information to
determine which hazards are likely to affect a jurisdiction.
The Hazard Mitigation Committee considered the full range of natural and human caused
hazards that could impact the county. The selection of hazards of concern was based on
the following criteria:
The 2010 version of the Chester County Hazard Mitigation Plan
The 2009 Chester County Hazard Vulnerability Analysis
The Pennsylvania State Hazard Mitigation Plan
Historical events
Local knowledge and perception of hazards
Chester County Emergency Operations Center Logs
For this update, the list of hazards identified in the 2010 version of the plan were
reviewed with the goal of refining the list to reflect the natural hazards that pose the
greatest risk to the jurisdictions represented by this plan. The plan also begins to explore
the effects of human-caused and technological hazards. Human-caused and technological
hazards were only assessed at the countywide level and not at each municipal specific
level. The next update of the plan will attempt to capture natural, human caused, and
technological hazards for all jurisdictions.
A portion of the hazard identification phase is examining historical events that have
occurred in Chester County. Table 10 is a comprehensive list of declared disasters that
have occurred in Chester County.
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Event Declarations
Type/Name Date County State Federal (For Chester County)
Winter Storms Feb 1958 * X
Winter Storms Jan 1966 * X
Winter Storms Feb 1972 * X
Hurricane Agnes Jun 1972 * X Presidential Major Disaster
Flood July 1973 * * Presidential Major Disaster
Winter Storms Feb 1978 * X
Drought Nov 1980 X X
Fire Feb 1989 * SBA Physical Damage and Economic
Injury
Flood July 1989 * SBA Physical Damage and Economic
Injury
Fire Aug 1992 * SBA Physical Damage and Economic
Injury
Winter Storms/Blizzard Mar 1993 * X Presidential Major Disaster
Winter Storms Jan 1994 * X Presidential Major Disaster
Drought Sept 1995 * X
Flooding Jan 1996 * X Presidential Major Disaster
Drought July 1999 * X Agricultural Disaster
Hurricane Floyd Sept. 1999 * X Presidential Major Disaster
Fires May 2001 * SBA
Drought & Water Shortage Feb 2002 * X
Winter Snow Storm Feb. 2003 * X Presidential Emergency Declaration
Tropical Storms Henri and
Isabel
Sept. 2003 X X Presidential Major Disaster
Tropical Depression Ivan Sept. 2004 X Presidential Major Disaster
Severe Storms/Flooding June 2006 X X Presidential Major Disaster
Fires Nov 2007 SBA Physical Damage and Economic
Injury
Coatesville Arson Fires Jan 2009 X SBA Physical Damage and Economic
Injury
Flooding Aug 2009 X SBA Physical Damage and Economic
Injury
Winter Snow Storm Feb 2010 X X Presidential Major Disaster
Tropical Storm Nicole Sept 2010 X X Presidential Major Disaster
Hurricane Irene Aug. 2011 X X Presidential Major Disaster
Tropical Storm Lee Sept. 2011 X X Presidential Major Disaster
Drought April 2012 SBA: Agricultural Disaster
Hurricane Sandy Oct. 2012 X X Presidential: Direct Federal Assistance
Winter Snow/Ice Storms Feb. 2014 X X Presidential: Direct Federal Assistance
- Power
SBA: Economic Injury
Table 10. Declared Disasters (County, PEMA, FEMA, 2014) * unknown if a declaration was made
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Hazard Profiles
Once potential hazards posing a risk to Chester County were identified, a profile was
created for each hazard. The profiles aid in determining the impact of these events on the
people, property, environment, and economy if one of the hazards were to occur in
Chester County. Each profile includes at a minimum the location and extent of hazard
impact, past occurrences, and probability of future frequency and severity of that hazards.
In addition the profile outlines the warning time, duration, and potential impact that are
associated with that hazard.
Environmental, social, and economic health is essential to disaster resilience. Climate
change can affect natural hazards, which can result in damages and hardships for a
community, county, region, and the state for years following the event. Climate change is
not in itself a hazard, however it has the ability to intensify or change the occurrence
patterns of other hazards. Some climate change impacts include sea level rise, extreme
storm events, and increased flooding, drought, and wildfire. Hazard mitigation includes
both short-term and long-term actions to reduce the severity of the effects of these
hazards. Risk analysis helps to identify the steps necessary to reduce climate change
impact.
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Natural Hazards
Drought and Water Supply Deficiencies
Drought is a natural climatic condition caused by an extended period of limited
precipitation beyond that which occurs naturally in a broad geographic area. High
temperatures, high winds and low humidity can worsen drought conditions, and can make
areas more susceptible to wildfire. Human demands and actions can also hasten drought-
related impacts. Drought conditions typically do not cause property damages or threaten
lives, but rather drought effects are most directly felt by agricultural sectors. At times,
drought may also cause community-wide impacts as a result of acute water shortages
(regulatory use restrictions, and drinking water supply shortages). The magnitude of such
impacts correlates directly with local groundwater supplies, reservoir storage, and
development densities.
Location and Extent
There are 16 water purveyors, several homeowners associations, and numerous private
wells supplying the residents of Chester County. Primary water sources include the
Octorara and Schuylkill Rivers, the east and west branches of the Brandywine Creek, and
Pickering Creek. The entire County is susceptible to the impacts of a drought.
Severity, Warning Time, and Duration
Prolonged dry periods could adversely affect available water sources and cause drought
situations. Chester County has experienced periods of abnormal precipitation in the past,
the longest period having been five years. Impacts from droughts can range from
agricultural impacts to impacting the entire community. Droughts develop over weeks to
months. The extended time that it takes for droughts to develop allows ongoing
monitoring and the ability to anticipate a future drought. However, once a drought occurs
the drought can last for weeks to months.
Past Occurrences
Chester County has been affected by eight drought emergencies since 1960 (Table 11).
During drought periods, households experience low water pressure and conservation
measures are usually implemented. Because of the rural nature of parts of the county,
agricultural areas can be greatly affected.
Date Description
1961-1966 Longest hydrologic drought of record.
1976-1977 Meteorological drought (normal 30 inch frost line increased to five feet.)
1980-1981 Hydrological-drought (county declared emergency).
1983 Agricultural drought (Presidential/ Governor's declared emergency).
1988 Meteorological drought.
1995 Governor declared emergency.
1999 Governor declared emergency, Individual Assistance and Hazard Mitigation Grant
Program was amended to include all 67 counties for an agricultural disaster.
2002 Governor declared emergency.
Table 11. Drought Emergencies in Chester County since 1960 (NCDC, 2014)
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Probability of Future Frequency
Lengthy periods of inadequate precipitation could lead to droughts and related water
deficiencies. Quality monitoring and maintenance measures will hopefully decrease the
possibility of any water management drought. The Chester County Groundwater
Monitoring well network assists in the anticipation of droughts.
Regardless of monitoring and maintenance measures, water conservation should become
an everyday practice. In 2002, the Chester County “Watersheds” Plan was adopted by the
Chester County Board of Commissioners as a component of the County’s “Landscapes”
comprehensive land use policy plan. The “Watersheds” Plan included a countywide water
supply plan component that assessed existing and potential sources of public and
individual water supplies, and presented current and future (2020) projected water
demands and implementation strategies.
An impact on all natural hazard and especially drought is climate change. Although
global precipitation is expected to increase somewhat due to climate change, the main
effects anticipated will be a redistribution of where and when precipitation falls. For
water management and drought, changes in seasonal distribution of precipitation may be
more consequential than changes in the annual total. Precipitation certainly matters, but
the role of temperature in drought cannot be neglected. Higher temperatures have the
same effect as reduced precipitation. The general implication of increased warmth is a
greater frequency or more drought-like condition.
Potential Impact
Life and Property. Changes in water quality and the environmental impacts of drought
can have serious consequences for human health. Particularly when drought is prolonged
or accompanied by high heat conditions, the impacts on both mental and physical health
can be significant. Those residents that rely on a private well for their water can end up
not having any potable water, even if there is water available from the commercial water
providers.
Infrastructure. Droughts have the potential to impact all the citizens and all of the
critical infrastructure within the county. Monetary losses associated with a drought
generally center around agricultural losses and economic losses to businesses who rely
heavily on a large water source.
Economy. Drought conditions can negatively affect agriculture, water supplies, energy
production, and many other aspects of society. The impacts vary depending on the type,
location, intensity, and duration of the drought. For example, effects on agriculture can
range from slowed plant growth to severe crop losses, while water supply impacts can
range from lowered reservoir levels and dried-up streams to major water shortages.
Lower stream flow and groundwater levels can also harm plants and animals, and dried-
out vegetation increases the risk of wildfires. The impact to the agricultural sector can
raise prices on food and other basic household needs for all citizens.
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Earthquake
Most earthquakes are caused by the release of stresses accumulated as a result of the
rupture of rocks along opposing fault planes in the Earth’s outer crust. Deformation along
plate boundaries causes strain in the rock and the consequent buildup of stored energy.
When the built-up stress exceeds the rocks' strength, a rupture occurs. The rock on both
sides of the fracture is snapped, releasing the stored energy and producing seismic waves,
generating an earthquake. Earthquakes can affect hundreds of thousands of square miles,
cause damage to property measured in the tens of billions of dollars, result in loss of life
and injury to hundreds of thousands of persons, and disrupt the social and economic
functioning of the affected area.
Earthquakes are measured in terms of their magnitude and intensity. Magnitude is
measured using the Richter Scale. Each unit increase in magnitude on the Richter Scale
corresponds to a 10-fold increase in wave amplitude, or a 32-fold increase in energy.
Intensity is most commonly measured using the Modified Mercalli Intensity (MMI) Scale
(Table 12) based on direct and indirect measurements of seismic effects. The scale levels
are typically described using roman numerals, with a I corresponding to imperceptible
(instrumental) events, V corresponding to moderate (felt by people awake), to XII for
catastrophic (total destruction).
Table 12. Modified Mercalli Intensity Scale
Most property damage and earthquake-related deaths are caused by the failure and
collapse of structures due to ground shaking. The level of damage depends upon the
amplitude and duration of the shaking, which are directly related to the earthquake size,
distance from the fault, site of the quake, and regional geology. Other damaging
earthquake effects include landslides, the down-slope movement of soil and rock
(mountain regions and along hillsides), and liquefaction, in which ground soil loses the
ability to resist shear and flows much like quick sand.
Location and Extent
Pennsylvania is located in a seismic risk zone whereby minor and/or moderate earthquake
damage may be expected. The County lies in proximity to Philadelphia, where from
1980 to 1984 five minor earthquakes occurred, affecting Philadelphia City and the
northern suburbs. Very little quake activity has occurred since 1984 with only four minor
incidents happening in the region. Should the activity greatly intensify over the years,
Chester County may be affected by residual tremors.
Although earthquakes in the Commonwealth are a rare occurrence historically causing no
injury or severe property damage, the crust of the earth is constantly shifting. The
majority of the larger earthquakes that have been felt in Chester County were residual
tremors cause by earthquakes in the surrounding areas.
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Severity, Warning Time, and Duration
The intensity of the earthquake is an unpredictable factor and directly relates to the
severity of damage that will be sustained. In the northeast region of the United States, the
composition of the geology does not lend itself to creating large earthquakes. However,
the dense rocks transmit shockwaves a long distance away. There is no warning time for
an earthquake and the duration of the quake is very short. Even with the short duration,
there is the potential for major damage from an earthquake.
Past Occurrences
Chester County has three fault lines running through its boundaries. The Martic Line runs
east to west, cutting across Route 100 just south of Route 30. The Huntingdon Valley
Fault is located just below the Martic Line. The Rosemont Fault originates in Delaware
County and arcs through the eastern portion of Chester County.
The only sizeable earthquake activity that occurred in Chester County was a 3.6
magnitude earthquake that occurred in Sadsbury Township on 12/17/1752. Shockwaves
from earthquakes in surrounding areas have been felt in Chester County. Most recently,
shockwaves were felt in Chester County from a 5.9 magnitude earthquake centered in
Richmond, Virginia.
Probability of Future Frequency
Earthquakes should continue to pose little threat to Chester County, with long intervals
between any possible occurrences. Figure 11 shows the earthquake probability zones as
well as the historical earthquake epicenters within the region.
Potential Impact
Life and Property. Earthquakes have the ability to cause loss of life. The loss of life
usually occurs from building collapses as a result of the quake. Depending on the size of
the earthquake, there could be anywhere between minimal to major damage to private
residences.
Infrastructure. Critical infrastructure is also susceptible to damage from an earthquake.
Due to the limited historical occurrences of earthquake, a majority of the buildings do not
take large earthquakes into considerations during the construction phase or have not been
retrofitted specifically to withstand earthquake forces.
Economy. The economic impact from earthquakes is directly related to the loss of
services provided by critical infrastructure. Damaged infrastructure and damaged
transportation pathways causes a ripple effect on the ability for other businesses to
remain open and for the residents to access those businesses.
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Figure 11. Seismic Hazard of Eastern Pennsylvania (USGS, 2014)
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Extreme Temperatures
The hazard of extreme temperatures is primarily a threat to human life and health, though
they are also hazardous to livestock and agricultural crops. Occasionally extreme
temperatures might threaten property and infrastructure. They might also exacerbate the
impact of other hazards such as severe weather events that cause widespread power
outages.
Extreme heat is defined as temperatures that hover 10 degrees or more above the
average high temperature for the region and that last for an extended period of time.
Humid conditions might also add to the discomfort of high temperatures.
Extreme cold is a dangerous situation that can bring on health emergencies in
susceptible people, such as those without shelter, who are stranded, or who live in a home
that is poorly insulated or without heat. Extreme cold conditions often accompany severe
winter storms that cause power outages, creating extremely dangerous situations for those
relying on electricity for heat.
Location and Extent
Extreme temperatures impact the entire county at the same time. While there are minor
fluctuations in climate within the County, those fluctuations would not be severe enough
for the extreme temperature to impact one portion of the county and not another portion.
Severity, Warning Time, and Duration
The severity of the extreme temperatures is directly related to how hot or cold it gets
along with the length of time that extreme conditions occurs. Weather forecasts can
usually predict the extreme temperatures at least a day or two in advance. That lead time
provides an opportunity to prepare for the extreme weather. Forecast models are getting
better at forecasting the onset of extreme temperatures, but they are not as accurate when
it comes to predicating how long a multiple day event will last. One or two days of an
extreme temperature does not cause major issues to the community. When three or more
days of sustained extreme temperatures occur, that is the point that the residents begin to
become impacted.
Past Occurrences
Extreme heat has occurred multiple times within Chester County. The majority of the
extreme heat events coincide with the historical droughts that are outlined in Table 11 in
the drought profile. While the drought and the extreme heat do not occur for the same
length of time and you can have one without the other, the majority of droughts have a
period of extreme heat associated with them.
Extreme cold is a common occurrence during the winter months. Cold temperatures
along with wind chills are frequent in the middle of winter. The extreme cold can occur
during a winter storm but most commonly occurs by itself. The greatest hazard from the
extreme cold is to those individuals that do not have a warm place to sleep or spend time
during the day.
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Probability of Future Frequency
It is certain that extreme heat and cold events will continue to impact the County. The
unknown factor is the severity and the length of those events.
The economy factors into the number of people that might be affected by extreme
temperatures. As prices increase to heat and cool a home those who are unable to afford
the increased costs, such as those on fixed incomes, have a higher likelihood of not
maintaining temperatures within their home. If home owners cannot afford daily costs
for heat, during a period of extreme cold they will be impacted greater that other
segments of the population.
Potential Impact
Life and Property. The young, elderly, and ill are most at-risk during extreme
temperatures. Pets and those who work or exercise outdoors are also at risk. Power
outages have potentially life-threatening consequences during periods of extreme heat, as
excessive demands for electricity can overwhelm local utilities and force intentional load
shedding. Health risks from extreme heat include heat cramps, heat fainting, heat
exhaustion, and heat stroke. Heat killed more people than lightning, tornados, floods, and
hurricanes combined. However, most deaths are attributed to prolonged heat waves in
large cities that rarely experience hot weather.
Extreme cold conditions that cause power outages, creates an extremely dangerous
situations for those relying on electricity for heat. When people search for alternate
heating methods such as space heaters and stoves to stay warm, increasing the risk of
household fires. People also utilize generators improperly during power outages and
extreme temperatures, creating the potential for carbon monoxide poisoning and
electrocution. Health risks to those exposed to extreme cold conditions include
hypothermia and frostbite which require prompt medical care. Persons most at-risk
include infants and the elderly with inadequate clothing or shelter, as well as those who
remain outdoors in the cold for long periods such as the homeless, outdoor laborers,
hikers, and hunters. There is also a chance of property damage from extreme cold events
due to pipes freezing and rupturing.
Infrastructure. The impact to critical infrastructure will arise when the extreme
temperatures create a high demand for power usage. That high demand on power could
lead to the need for the power companies to shed load to meet the demands. In the event
load shedding is required, one of the main focuses will be to keep critical infrastructure
under full power to meet the needs of the community.
Economy. Power outages as a result of the extreme temperatures could impact the
economy by not allowing businesses to operate. The other potential impact would be
agricultural losses when temperatures remain at extremes for long durations of time.
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Flooding
Flooding is the most frequent and costly natural hazard in the United States. Floods are
generally the result of excessive precipitation, and can be classified under two categories:
general floods, precipitation over a given river basin for a long period of time; and flash
floods, the product of heavy localized precipitation in a short time period over a given
location. The severity of a flooding event is typically determined by a combination of
several major factors, including: stream and river basin topography and physical
geography; precipitation and weather patterns; recent soil moisture conditions; and the
degree of vegetative clearing and impervious surface. Generally floods are usually long-
term events that may last for several days. The primary types of general flooding include
riverine, coastal, and urban flooding. Riverine flooding is a function of excessive
precipitation levels and water runoff volumes within the watershed of a stream or river.
Flooding can also occur from snow melt in the spring or ice jamming on the rivers in the
winter. Urban flooding occurs where manmade development has obstructed the natural
flow of water and decreased the ability of natural groundcover to absorb and retain
surface water runoff.
Most flash flooding is caused by slow-moving thunderstorms in a local area or by heavy
rains associated with hurricanes and tropical storms. However, flash flooding events may
also occur from a dam or levee failure within minutes or hours of heavy amounts of
rainfall, or from a sudden release of water held by a retention basin or other stormwater
control facility.
The periodic flooding of lands adjacent to rivers, streams and shorelines (land known as
floodplain) is a natural and inevitable occurrence that can be expected to take place based
upon established recurrence intervals. The recurrence interval of a flood is defined as the
average time interval, in years, expected between a flood event of a particular magnitude
and an equal or larger flood. Flood magnitude increases with increasing recurrence
intervals, and floodplains are designated by the percent chance per year that a flood is
large enough to cover them. For example, the 100-year flood has a 1 percent chance of
occurring in any given year. The 500-year flood has a 0.2 percent chance of occurring in
any given year.
Location and Extent
Approximately 80 percent of Chester County is located in the Lower Delaware River
Basin. Flooding in this basin has been a result of extensive development in floodplain
areas. The remainder of Chester County is located in the Susquehanna River Basin. This
basin is represented mainly by the Octorara Creek Watershed which has been subject to
less developmental pressure.
Seventy-two of the 73 municipalities in Chester County are in floodplains; Honey Brook
Borough is the only municipality without a 100-year or 500-year floodplain. Figure 12
shows the floodplain in Chester County.
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Severity, Warning Time, and Duration
Due to the rolling landscape and low water capacity of the soils and underlying rocks,
flooding due to runoff from a heavy rainfall may be more severe in a stream valley.
Floods may occur during any month of the year, although they occur with greater
frequency in the spring months of March and April due to a combination of rainfall and
snowmelt. In addition to local flooding from severe thunderstorms during the summer
and fall, storms of tropical origin sometimes deposit flood-producing rains. Flooding
associated with snow melt has a greater warning time than flooding associated with
thunderstorms.
Monitoring of National Weather Service products allows for a day or more lead time for
traditional riverine flooding. The forecasts have the potential for making an error in the
exact path or amount of water that is going to fall in a particular area, which can
drastically change the effects seen from flooding. Riverine flooding typically starts hours
after the storm has left the area and can last for hours up to a day. The water rise and fall
associated with riverine flooding is typically a slower process.
Flash flooding has less warning time since is it usually associated with small pop up
thunderstorms. Flash flooding usually will subside shortly after the storm has passed and
the stormwater systems are able to catch up with diverting the large amount of water.
Past Occurrences
Chester County has been affected by flooding relatively frequently in the past. Specific
areas where flooding has caused problems in the past are those locations abutting the
Schuylkill and Brandywine Rivers, as well as several creeks within the County (e.g.
White Clay, French, Octorara, Red Clay and Elk). Flash flooding has been seen in the
more urbanized areas of the County predominantly due to large amounts of water falling
that are greater than the stormwater systems are designed to handle at once.
Probability of Future Frequency
Within the flood susceptible areas of Chester County, it is expected that the character of
flooding will not diminish over the coming years. Protection against flood damage and
loss can be greatly decreased by monitoring weather patterns, forecasts, stream and rain
gauges, and historical statistics.
Potential Impact
Life and Property. Flood related injuries or facilities are a possibility with the cause
generally relating to residents being caught in flood prone areas and being unable to
safely get out of the flood waters. Within Chester County there are approximately 4,900
buildings on 3,000 parcels that are within the 100-year floodplain and 1,100 buildings on
800 parcels in the 500-year floodplain. The assessed value of the structures within the
floodplain is $900 Million and $400 Million respectively. If a flood event occurs outside
of the floodplain the potential loss to property would increase. There is a risk of sewage
ending up in flood water and after a flood event there is a risk of mold build up in flooded
homes that are not properly cleaned out; both posing a health risk to residents.
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Infrastructure. With any flood event there is the likelihood of damage to critical
infrastructure. The majority of the critical infrastructures in the floodplains are
transportation networks such as roadways. The forces behind flood waters can easily
damage roadways and their foundations. Very few critical facilities are located within
the 100 year or 500 year floodplain. There are a total of 12 critical facilities that are
located in a 100 year floodplain. These include 2 day cares, 1 police station, 1 ambulance
station, 1 fire station, 6 churches and 1 major industrial plant. Flash flooding and urban
flooding have the potential to bring flood waters into an area that is not as well mapped
out and pose a slight risk to impacting other critical infrastructure.
Economy. The economy is impacted by businesses that have their facility flooded and
transportation routes that are closed due to flooding. The rail and air transportation
networks are usually not impacted by flooding. While most of the flooded roadways will
re-open in a short period, damaged road infrastructure from the forces of water can last
for a long period of time.
Repetitive and Severe Repetitive Loss
Several federal government programs encourage communities to identify and mitigate
“repetitive loss” and “severe repetitive loss” properties. Nationwide, repetitive loss
properties make up only 1 to 2 percent of the flood insurance policies currently in force,
yet they account for 40 percent of the flood insurance claim payments.
FEMA identifies repetitive loss and severe repetitive loss structures based on flood
insurance payments. A repetitive loss property is one in which two or more paid out
National Flood Insurance Program (NFIP) claims of at least $1,000 each are made within
10 years of each other. A severe repetitive loss property is one that has at least four paid
out claims over $5,000 each or two payments which the cumulative amount exceeds the
market value of the building.
According to the list of repetitive loss properties maintained by FEMA, as of June 2012,
Chester County has 136 identified repetitive loss and 23 severe repetitive loss properties.
These properties are outlined within each of the municipal specific sections of this plan.
All of the repetitive loss and severe repetitive loss properties are on the list of potential
hazard mitigation action to either elevate the structure out of the floodplain or to acquire
the property and demolish the structure.
Sixty-nine of the seventy-three Chester County’s municipalities participate in the
National Flood Insurance Program. All of those municipalities have adopted the
minimum standards required by the NFIP, however many of them have implemented
stricter ordinances when it comes to building in the floodplain. There are municipalities
within the County that have ordinances prohibiting any building within the floodplain at
all.
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Figure 12. FEMA Floodplains in Chester County. (FEMA, 2014)
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Hurricane and Tropical Storm
Hurricanes and tropical storms are defined as any closed circulation developing around a
low-pressure center in which the winds rotate counter-clockwise in the Northern
Hemisphere (or clockwise in the Southern Hemisphere) and whose diameter averages 10
to 30 miles across. The primary damaging forces associated with these storms are high-
level sustained winds, heavy precipitation that causes inland flooding, and tornados.
The majority of hurricanes and tropical storms form in the Atlantic Ocean, Caribbean Sea
and Gulf of Mexico during the official Atlantic hurricane season, which encompasses the
months of June through November. The peak of the Atlantic hurricane season is in early
to mid-September.
As a hurricane develops, barometric pressure at its center falls and winds increase. If the
atmospheric and oceanic conditions are favorable, it can intensify into a tropical
depression. When maximum sustained winds reach or exceed 39 mph, the system is
designated a tropical storm, given a name, and is closely monitored by the National
Hurricane Center. When sustained winds reach or exceed 74 mph the storm is deemed a
hurricane. Hurricane intensity is further classified by the Saffir-Simpson Scale, which
rates hurricane intensity in categories on a scale of 1 to 5, with category 5 being the most
intense. The Saffir-Simpson Scale categorizes hurricane intensity linearly based upon
maximum sustained winds, barometric pressure and storm surge potential, which are
combined to estimate potential damage.
Categories 3, 4, and 5 are classified as “major” hurricanes, and while hurricanes within
this range comprise only 20 percent of total tropical cyclone that make landfall, they
account for over 70 percent of the damage in the United States. Damage during
hurricanes might also result from spawned tornados, storm surge, and inland flooding
associated with heavy rainfall that usually accompanies these storms.
Location and Extent
The entirety of Chester County becomes impacted when a tropical event comes into the
area. The low lying areas are more vulnerable to the flooding caused by the storm and
the wooded areas are more vulnerable to the high winds causing tree damage. The vast
amount of the commercial power network is above ground, which makes the entire
county vulnerable to power outages due to falling trees and wires. The amount of
damage that is sustained is directly related to the size and the intensity of the storm when
it reaches the County. The intensity has usually decreased due to the distance the storm
has to travel across land prior to impacting the county.
Severity, Warning Time, and Duration
In regards to hurricanes, by the time most storms reach Pennsylvania they fail to satisfy
the definition of a hurricane (75 mph winds). However, Chester County has been affected
by the secondary effects (mainly heavy rainfall) of more than 20 hurricanes in the last 80
years. Winds from hurricanes and tropical storms seldom reach destructive speeds in
Chester County, although widespread minor damage sometimes results from a
combination of heavy rain and strong winds.
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The hurricane developing in the tropical area of the Atlantic Ocean gives plenty of time
to see tropical weather develop and make its way toward Pennsylvania. The forecasting
of tracks has improved, so it is easy to see 3 to 4 days out if there is a possibility of
tropical storm impact to the area. Once it is determined that a storm will impact our area,
the exact track contains some assumptions built into the models which causes some error
so it is hard to determine the anticipated amount of damages based on that track.
However, once it is determined that a tropical storm is going to impact our area there is
time to plan and prepare for the storm. Once a tropical storm begins to impact the
County, the duration of the storm itself is usually less than 24 hours. The effects of
flooding as a result of the storm can last for a few days.
Past Occurrences
The most severe impact from tropical storms/hurricanes occur in the Delaware River
Basin. The worst storms occur when a hurricane joins a tropical storm on the coastline,
forming a storm with two major storm centers. Such was the case during Hurricane Diane
in August 1955. Another recent hurricane that impacted Chester County was Hurricane
Irene in 2011.
Probability of Future Frequency
From 2010 through 2014, Chester County has felt the impact from three tropical events,
Hurricane Irene, Tropical Storm Lee, and Super Storm Sandy. The recent increase in
tropical events shows that there is a high probability that Chester County will feel the
impact of additional tropical events in the future. The size and severity of the damage
caused by those events is the unknown factor.
Potential Impact
Life and Property. The entire county has the potential to be impacted by a tropical
event. Certain locations within the county are more prone to having wind damage from
such a storm and certain properties within the county are more prone to being impacted
by floods created by the rain from that type of event. The impact to structures can be
seen in the flooding and the thunderstorm hazard profiles.
Infrastructure. In addition to the wind and flood hazards, critical infrastructure has the
potential to lose power. The loss of power would force critical infrastructure onto
generator power and make them more vulnerable to a disruption of the supply chain (such
as fuel) and other impacts from the event. Transportation networks could be impacted by
a tropical event, compounding the issues for those facilities that are not on commercial
power.
Economy. The economy is impacted from the loss of services due to closed
transportation networks from flooded roads and downed trees and wires. The services
provided by the businesses can be interrupted due to a loss of power.
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Thunderstorms
A thunderstorm, also known as an electrical storm, a lightning storm, or a thundershower,
is a type of storm characterized by the presence of lightning and its acoustic effect on
the Earth's atmosphere known as thunder. Thunderstorms are usually accompanied
by strong winds, heavy rain and sometimes snow, sleet, hail, or no precipitation at all.
One of the main hazards with thunderstorms is lightning. Lightning is a discharge of
electrical energy resulting from the buildup of positive and negative charges within a
thunderstorm, creating a “bolt” when the buildup of charges becomes strong enough.
While most often affiliated with severe thunderstorms, lightning often strikes outside of
heavy rain and might occur as far as 10 miles away from any rainfall.
Hail develops when a super cooled water droplet collects a layer of ice and continues to
grow, sustained by the updraft. Once the hail stone cannot be held up any longer by the
updraft, it falls to the ground. Hail up to 2.75 inches in diameter, nearly the size of a
baseball, was reported in northern Chester County in 1995, according to the NCDC.
Location and Extent
The entire County is susceptible to thunderstorms. Thunderstorms historically move
across the county from the southwest to the northeast and are more common in the spring
and summer months.
Severity, Warning Time, and Duration
There is moderate warning time for thunderstorms. The National Weather Service is
good at predicting when a thunderstorm will impact the region. There is some
uncertainty as to the exact timing and the intensity of the storm when it hits a specific
town. That uncertainty is what makes it hard to plan for when and where the damages
will occur. Thunderstorms are capable of bringing localized damages due to strong winds
and hail as well as wide spread damages from downed trees and flash flooding. The
duration of the storm itself is usually short lived in any area of the County, but the effects
from the storm can be felt for one to three days after the storm depending on its severity.
Past Occurrences
Multiple thunderstorms every year impact Chester County. Thunderstorms have caused
power outages across the county and others have caused major localized damages. Due
to the nature of thunderstorms there has not been widespread major damage seen across
the entire county from one storm. No thunderstorm has ever created the need to declare a
disaster, but they have caused the Emergency Operations Center to open to support the
needs of the public and municipalities following the storm.
Probability of Future Frequency
Thunderstorms will continue to occur in Chester County. The size and the intensity of
the storm as well as the portion of the county that is impacted will determine the amount
of damage and the disruption felt from those storms.
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Potential Impact
Life and Property. Injuries from thunderstorms are centered around lightning, fire, and
wind incidents. There is the possibility of fatalities occurring from damages caused by
thunderstorms or from lightning strikes. Damaging winds from thunderstorms sometimes
occur, although damages by fire caused by lightning are considered more frequent and
costly. Damage caused by hail can be costly to property owners depending on the size
and the intensity of the hail.
Infrastructure. There is little impact to critical infrastructure as a result of
thunderstorms. Critical facilities might be individually impacted by the storms, but there
is little chance for widespread impact to infrastructure. Any impact to multiple facilities
would be due to a loss of power.
Economy. Impact to the economy would be related to short term closures of roads due to
downed power line and trees. The agriculture industry can be heavily impacted by hail.
Nationally, hailstorms cause nearly $1 billion in property and crop damage annually, as
peak activity coincides with peak agricultural seasons. Lightning strikes have the
potential to shut down a business until the damage is repaired.
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Tornados and Wind Storms
A tornado is a violent windstorm characterized by a twisting, funnel-shaped cloud
extending to the ground. Tornados are most often generated by thunderstorm activity
(but sometimes result from hurricanes and other tropical storms) when cool, dry air
intersects and overrides a layer of warm, moist air forcing the warm air to rise rapidly.
The damage caused by a tornado is a result of the high wind velocity and windblown
debris, also accompanied by lightning or large hail. According to the National Weather
Service, tornado wind speeds normally range from 40 to more than 300 mph. The most
violent tornados have rotating winds of 250 mph or more, and are capable of causing
extreme destruction and turning normally harmless objects into deadly missiles.
The damage caused by tornados ranges from light to disastrous, depending on the
intensity, size, and duration of the storm. Typically, tornados cause the greatest damage
to structures of light construction such as residential homes (particularly mobile homes).
The Enhanced Fujita Scale for Tornados was developed to measure tornado strength and
associated damages; the scale ranges from an EF-0 to an EF-5, with EF-5 being the most
destructive.
Wind is defined as the motion of air relative to the earth’s surface, and the hazard of
extreme wind is commonly associated with severe thunderstorm winds (exceeding 58
mph) as well as tornados, hurricanes, tropical storms and nor’easters. Extreme winds can
also occur in the absence of other definable hazard conditions, events often simply
referred to as windstorms. Extreme wind events might occur over large, widespread
areas or in a very limited, localized area. They can occur suddenly without warning, at
any time of the day or night.
Straight-line winds, which in extreme cases have the potential to cause wind gusts that
exceed 100 mph, are responsible for the most frequent wind damages. One type of
straight-line wind, the downburst, can cause damage equivalent to a strong tornado.
Extreme winds pose a significant threat to lives, property and infrastructure due to direct
wind forces but also flying debris, such as rocks, lumber, fuel drums, sheet metal, and
loose gear of any type that can be picked up by the wind and hurled with great force.
Extreme winds also down trees and power lines that often result in power outages across
an affected area.
Location and Extent
Tornados and windstorms are common occurrences in the Commonwealth, especially
during the spring and summer months. According to the National Climatic Data Center, a
total of 738 tornados have struck Pennsylvania. The southeast portion of the state is one
of the areas most prone to tornados and windstorms.
Severity, Warning Time, and Duration
Past experience has been that the winds of destructive force are generally produced by
thunderstorms and tornados. Wind velocities from any of these may reach in excess of
50 miles per hour, but relatively small areas of the county are affected at any one time.
Straight line winds have occurred multiple times in Chester County causing localized
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damage. The warning time for tornados and windstorms is very short to no warning time
at all. While there is little to no warning time, the storms are usually very short in
duration. Regardless of the short duration of the storm, major damages can occur in that
short period of time.
Past Occurrences
Chester County is included in the 14 Pennsylvania counties designated as areas of higher
tornado frequency. There have been numerous occasions that tornado watches or
warnings were issued, occasionally resulting in high winds, rain, and/or hail. These
tornados have created minor damage in the county with localized power failures lasting
up to four hours. There have been 27 total tornados recorded in Chester County, five
being EF-2 and two being EF-3 tornados. Figure 13 shows the historical tornados in
Chester County and the estimated path they took from their beginning to end point.
Probability of Future Frequency
The frequency of tornados and the effects of windstorms occurring in the county should
remain fairly constant. Tornado activity is unusual, but there have been historical
occurrences of EF-3 tornados in Chester County. The potential for future tornados
should not be discounted. June and July are the most likely months for tornado activity.
Potential Impact
Life and Property. According to the National Climatic Data Center, from 1916 through
2007, three fatalities occurred in Chester County as a result of tornados. One fatality
occurred in 1955, the other two in 1979. There is always the possibility of loss of life in
future tornado and windstorm events. Damages from windstorms, and lightening to
property could be sporadic, tornados have to the potential to take out a wide area of
property and cause major damage.
Infrastructure. Damages from windstorms, and lightening to critical infrastructure are
going to be isolated and limited in the geographic footprint that is affected. Tornados are
the only one of those three that has the potential to take out a wide area of buildings and
critical infrastructure. What is more likely to impact the critical infrastructure in the
county is the effects of loss of power and blocked transportation routes due to the storm.
Economy. The economy is slightly impacted by windstorms and lightening. A tornado
has the potential to cause severe disruption to the economy. Depending on the size and
the path of the tornado, large areas of infrastructure, transportation networks, homes, and
business could be damaged or destroyed. Residents displaced by a tornado might not be
able to make it to their work location, impacting staffing for employer.
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Figure 13. Confirmed Tornados in Chester County (Storm Prediction Center, 2014)
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Winter Storms
A winter storm can range from moderate snow over a period of a few hours to blizzard
conditions with blinding wind-driven snow that lasts for several days. Some winter
storms might be large enough to affect several states, while others might affect only
limited, localized areas. Many winter storms are accompanied by low temperatures and
heavy and/or blowing snow, which can severely impair visibility and disrupt commerce
and transportation. Occasionally heavy snow might also cause significant property
damages, such as roof collapses.
Winter storms may include snow, sleet, freezing rain, or a mix of these wintry forms of
precipitation. Sleet are raindrops that freeze into ice pellets before reaching the ground
which usually bounce when hitting a surface and do not stick to objects; however, sleet
can accumulate like snow and cause a hazard to motorists. Freezing rain is rain that falls
onto a surface with a temperature below freezing, forming a glaze of ice. Even small
accumulations of ice can cause a significant hazard, especially on roadways, power lines
and trees. An ice storm occurs when freezing rain falls and freezes immediately upon
impact on trees, power lines, communication towers, structures, roadways, and other hard
surfaces. Communications and power can be disrupted for days, and even small
accumulations of ice might cause extreme hazards to motorists and pedestrians.
Location and Extent
The entire county is impacted when a winter storm enters the region. The ability exists
for there to be variations of the amount of snow fall or ice accumulation across the
county. Due to the freeze line determining where the precipitation will fall as snow
versus rain, there have been times when half of the county received snow and the other
half received only rain.
Winter storms typically occur in Chester County from late November through mid-April,
with peak months being December through March. Nor’easters are one type of severe
winter storm that typically bring high winds along with heavy precipitation.
Severity, Warning Time, and Duration
Snow, more so than sleet or freezing rain, accounts for a considerable portion of the
colder season precipitation. Amounts usually total 20 to 30 inches per year; however, that
much and more have occurred in individual months. Most of the snow occurs during
December through March, although measurable amounts have been observed as early as
mid-October and as late as mid-April.
Although snowfall within the county varies from place to place, somewhat greater
amounts are found in the northern and western sections, especially on the higher
elevations. The ground is usually snow covered about one-quarter of the time during the
winter season, with amounts of one inch or more covering the ground about 27 days
annually, with an average annual snowfall of 26 inches.
The majority of winter storms give a day or two lead-time, and forecasting has the ability
to anticipate the amount of snow or ice fall within the county. The exact amounts can be
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difficult to forecast, especially when the freeze line is close to or within the county. The
actual snow fall from winter storms is usually over within 12-24 hours. For a purely
snow event the public works departments are able to plow the roads open within one to
two days after the snow has stopped. When the winter storm brings trees and power lines
down, response and road clearance times becomes extended.
Past Occurrences
Chester County has experienced major winter storms of varying magnitudes. These
storms have caused power failures, loss of communication networks, road closings, and
stranded motorists. Since 1950, the county has experienced numerous major winter
storms. Most recently in 2014, Chester County was impacted by a major ice storm that
left over 90% of the county without power. The multitude of power lines and trees down
along with snow, ice, and cold weather complicated the utility restoration process. The
record recorded snowfall in Chester County in one day is 25.98 inches, established on Jan
8th
1996 in Glenmoore, PA.
Probability of Future Frequency
It is reasonable to expect the number and severity of winter storms to remain fairly
constant over future years. It is only through continuing public education and
preparedness that future winter storms will be made less dangerous and more tolerable to
the residents of Chester County.
Potential Impact
Life and Property. Snow does not usually create any large amount of physical damages
to property, occasionally roof collapses can occur from a large heavy snowfall. The
largest impact from winter storms is from ice accumulation. Ice building up can put a lot
of weight onto power lines, trees, and other structures. The additional weight causes
trees to fall into power infrastructure as well as residential homes and businesses. Loss of
power during winter storms can pose a health risk to those that rely on electric heat and
those who use other means to attempt to heat their homes such as kerosene heaters. The
risk of house fire increases as well as the risk of carbon monoxide poisoning from
improper ventilation and improper use of generators.
Infrastructure. Snow does not usually create any large amount of physical damages to
critical infrastructure. The largest impact from winter storms is from the loss of power
and inability to utilize the transportation infrastructure.
Economy. The largest impact to the economy is the decreased ability to traverse the
transportation networks during winter storms. Usually the transportation networks are
cleared of snow within a day or two, the compounding effect of multiple days of snow
closures over one winter can cause a cumulative effect on the economy.
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Human-Caused Hazards
Armed Attacks
An armed attack is an assault on a person or location utilizing a weapon. Armed attacks
are usually carried out using a firearm. Attacks involving bombs or explosives are
covered in a separate hazard profile below. Attackers can range anywhere from one
person with no pre-planning to multiple people with extensive pre-planning. Some
attackers plan to not survive the attack, while others wish to survive with the possible
intent of executing further attacks.
Location and Extent
The entire county is susceptible to an armed attack occurring within a facility or at a
public gathering. An armed attack is traditionally contained to one location so the
potential to impact multiple municipalities is low. The event would be localized to
usually a few buildings at most. The exception would be one person carrying out a series
of attacks on multiple locations prior to being caught. Armed attacks can occur at any
location but locations with more people gathered together would make a more likely
target for an attack.
Severity, Warning Time, and Duration
There might be little to no warning time for this type of incident. The only warning time
that would be present is if there was intelligence that was received about the planning of
such an event. The duration for these events are usually short. The law enforcement
officers throughout the county have received extensive training on how to deal with
active shooters as well as barricaded subjects, and others with weapons who are trying to
inflict harm. The duration or the incident could last a few days if the same actor has
repeat attacks prior to being apprehended or the attack could be very short. Intelligence
sharing through local and regional partners including the Delaware Valley Intelligence
Center will help identify the potential for these types of attacks and provide a greater lead
time for the incident.
Past Occurrences
Violent crimes have occurred in all areas of the country. Table 13 below outlines some
of the crime statistics for Chester County in recent years. The numbers in the table below
include statistic for crimes both with and without weapons.
Year Criminal Homicide Robbery Assaults
2010 8 189 520*
2011 8 197 529*
2012 14 175 1,750
2013 5 170 1,604
Table 13. Chester County Crime Statistics (PSP Statistics, 2014)
*The data for 2010 & 2011 listed “Aggregated Assaults” where the data for 2012
& 2013 listed “Assaults”
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Probability of Future Frequency
Violent crimes will continue to occur throughout the County every year. There is always
the potential for an armed attack on a business or public gathering. Across the country
there has been an increase in the number of active shooter incidents and there is the
potential that a similar event could occur in Chester County. While we may not be able
to prevent an attack, it is well within our ability to lessen the likelihood and/or the
potential effects of an incident. Information sharing, early detection, and community
awareness can help in preventing these types of attacks.
Potential Impact
Life and Property. There is a high probability for injuries or loss of life to occur from
an armed attack. The loss of life and injuries would occur in a localized area where the
attack is occurring. There is little chance for major damage to property to occur.
Infrastructure. The only impact that would occur to infrastructure would be if the armed
attack occurred at a critical infrastructure facility.
Economy. There is little impact to the economy from an armed attack. The only impact
would be related to the mental impact of the residents in the surrounding community.
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Civil Disturbance
A civil disturbance is defined as any incident which disrupts community affairs, threatens
the health and safety of the population, or causes the destruction of property. Civil
disorders include the following: terrorist attack, bomb threats, riots, strikes, or
demonstrations which may encompass large portions of the community.
Location and Extent
Civil disturbance can occur anywhere in the county, but is more likely within the more
populated centers in the county. The more populated boroughs have a greater likelihood
but they also typically have a local police force, unlike some of the more rural areas of
the county.
Severity, Warning Time, and Duration
The severity of civil disturbances can range from minor to major, which directly
corresponds to the issue that is creating the disturbance. Some incidents cause no impact
to the community and are a peaceful demonstration. The majority of the civil
disturbances provide little to no warning prior to them starting. The ones that do provide
some warning are usually the peaceful demonstrations such as labor strikes, however
those demonstrations can last for a long period of time. The violent civil disturbances
traditionally do not have any warning time, but are short-lived.
Past Occurrences
Because of the rural nature of Chester County for most of its history, residents have not
experienced any major civil disorders. There have been a number of sporadic incidents,
none of which have affected large numbers of the total population. Most of the incidents
have been relatively localized and short-lived and focused in the more populated urban
centers within the county. A list of civil disorders that have occurred since 1973 is given
below.
1. Labor disputes have caused unrest, violence, injunction and/or strike situations.
Major incidents occurred at Diversified Printing, National Rolling Mills, Kennett
Square NVF, Bishop Tube, Mathey-Bishop, and Lukens Steel. In addition, there
was some unrest experienced in 1991, during attempts to unionize the migrant
workers in the Kaolin Mushroom Co. in southern Chester County.
2. The nationwide truckers strike in 1979 brought violence to the Route 30 Bypass
near Coatesville.
3. A Chester County Prison cell fire in 1982 caused moderate disruption. A large
number of people were affected by smoke inhalation and a number of guards were
sent to the hospital.
4. Commuters have been affected by SEPTA Rail strikes
5. There was a hostage situation in West Goshen in 1983. Hostage situations happen
approximately once or twice every couple of years.
6. Following the September 11, 2001 terrorist attacks, there were multiple reports of
anthrax contamination throughout Chester County, which resulted in evacuations.
Anthrax contamination could not be confirmed in any of the incidents.
7. Incidents related to the conflict between Right to Life and Pro-Choice advocates.
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Other civil disorders have occurred throughout Chester County. However, the impact of
these other incidents on local residents was minimized due to the moderate size of the
incident and quick response of the agencies/parties involved.
Probability of Future Frequency
Civil disorders in Chester County should not increase significantly. However, population
growth and urbanization may increase the probability of civil disorders.
Potential Impact
Life and Property. Damage to property from violent civil disturbances can occur, but is
usually limited to a small geographical area. The damage can range from personal
property such as cars and homes to public property. There is the potential for multiple
minor injuries from a civil disturbance as well as a few major injuries or fatalities.
Infrastructure. There is a limited impacted to critical infrastructure. The only impact
would be if the infrastructure was directly in the area of the civil disturbance or if the
peaceful demonstration was occurring at the facility.
Economy. Peaceful demonstrations have the potential to cause a greater impact to the
economy. Peaceful demonstrations usually do not cause physical damage to the
community but can cause disruption to the transportation of commodity flow throughout
the county and the accessibility of some of modes of transportation such as the rail
network.
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Conventional/Improvised Bombs
An explosive weapon, such as a bomb, the warhead of a missile, or an artillery shell
would be considered conventional. All such weapons contain explosive material which
explodes when suitably triggered. In conventional weapons, the explosive material is
something that can undergo some chemical reaction which proceeds extremely quickly
and releases a lot of energy. Basically it can ‘burn’ so fast that it explodes. The first
explosive material used in weapons was gunpowder; nowadays more powerful explosives
like TNT and C-4 are used.
An Improvised Explosive Device (IED) can be almost anything with any type of material
and initiator. It is a "homemade" device that is designed to cause death or injury by using
explosives alone or in combination with toxic chemicals, biological toxins, or
radiological material. IEDs can be produced in varying sizes, functioning methods,
containers, and delivery methods. IEDs can utilize commercial, homemade or military
explosives.
They are unique in nature because the IED builder has had to improvise with the
materials at hand. Designed to defeat a specific target or type of target, they generally
become more difficult to detect and protect against as they become more sophisticated.
IEDs fall into three types of categories:
Package Type IED
Vehicle-Borne IEDs (VBIEDs)
Suicide Bomb IED
Though they can vary widely in shape and form, IEDs share a common set of
components and consist of the following:
A switch/trigger
An initiator (fuse)
Main charge (explosive fill)
A power source for the switch/trigger
A container
Location and Extent
The entire county is susceptible to a bombing occurring within a facility or at a public
gathering. The potential to impact multiple municipalities is low, only if multiple bombs
were used would multiple locations be impacted at the same time. Bombings can occur
at any location but locations with more people gathered together would make a more
likely target for an attack.
Severity, Warning Time, and Duration
Bombs can cause moderate to severe damage. The damage is usually in close proximity
to where the bomb was placed. There is little to no warning time for a bomb detonation.
The bomb detonation occurs very quickly, but additional “secondary” devices, and/or
diversionary activities may be used. This would lengthen the duration of the hazard until
the attack site is determined to be clear.
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Past Occurrences
A bomb was discovered in the West Goshen Shopping Center in June 1984. More
recently, a series of bomb threats occurred during the early 2000’s in northern Chester
County. Over twenty individual explosive devices were discovered over an eighteen
month period. There was also an explosive device found in a West Chester Parking
garage within 2012. The threats associated with those devices resulted in evacuations,
traffic rerouting, and destruction of personal property.
Probability of Future Frequency
There is always the possibility of a bombing in Chester County. The size, location, and
impact caused by a bomb are not predictable. While we may not be able to prevent an
attack, it is well within our ability to lessen the likelihood and/or the potential effects of
an incident. Information sharing, early detection, and community awareness can help in
preventing these types of attacks.
Potential Impact
Life and Property. There is a high probability for injuries and loss of life to occur from
a bombing. The loss of life and injuries would occur in a localized area where the bomb
was located. There is usually property damage associated with bombs, but is centered in
a localized area immediately surrounding the location of the bomb.
Infrastructure. The only impact that would occur to infrastructure would be if the
bombing occurred within a critical infrastructure facility.
Economy. The largest impact to the economy would be from the mental impact to the
residents and the community. A bombing could create an uneasy feeling in the public
causing them to change their daily routines. That change in routine has the ability to
impact the economy.
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Cyber Terrorism
While the broad reach of cyberspace has done much to improve communication,
innovation, and information, its largely open and unregulated nature also leaves Chester
County vulnerable to cyber threats. A cyber incident or the threat of such an event is an
adverse event that occurs in an information system and/or network. A cyber-attack is an
incident that is intentional and malicious in nature. An attack occurs when the digital
infrastructure of a person or organization is compromised, often for financial or terror-
related reasons. The growing dependence on digital infrastructure means that even a
small incident at a targeted location may have widespread impacts.
Cyber-attacks can take the form of data breaches, crippling viruses, or even damaging to
physical technology infrastructure. Cyber-attacks differ by motive, attack type, and
perpetrator profile. Motivating factors for cyber-attacks can vary tremendously; however
most attacks fall into one of the following three categories: cybercrimes, hacktivism, and
cyber espionage. Six forms of cyber-attacks are presented in Table 14 below.
Cyber Attacks Attack Vectors Description of Attack
Spoofing Phishing A person or program successfully masquerades as
another by falsifying data and thereby gaining an
illegitimate advantage
Tampering Defacement Modification of data. Example: modification of
website content or appearance can lead to propagation
of misinformation
Repudiation Insider Challenging authenticity. Example: account
compromise or unauthorized access to information
technology—data, emails, or network access—leading
to altering data integrity
Information
Disclosure
Data Leak The unintentional or intentional release of secure
information—possibly private or confidential data—to
an untrusted environment
Denial of
service
Distributed
Denial of
Service (DDoS)
An overwhelming number of false requests intended to
prevent any legitimate service from functioning
properly
Elevation of
Privilege
Malicious code Exploitation of a bug or design flaw, sometimes in an
operating system, software application, database or
website, which allows a user to gain higher levels of
access to resources
Table 14. Forms of cyber attacks
Location and Extent
Unlike other hazards associated with specific geographic locations, the internet is
accessible remotely from any location. Attacks that affect Chester County can originate
from anywhere adding an additional layer of complexity to protection. The targets of
these attacks can be very large corporations, governments, or even individuals; in fact,
anything that is digitally connected is technically vulnerable. Specific target sectors that
might result in countywide effects include:
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Financial centers
Government buildings
Media outlets
Transportation authorities
Power/Utilities companies
Telecommunications networks
Severity, Warning Time, and Duration
Successful cyber-attacks can range from causing minor to severe effects. The attacks that
would cause severe impacts are ones that attack multiple control systems at the same time
for multiple critical infrastructure. The severe attacks are very complicated and very
difficult to carry out successfully. Cyber-attacks occur with little to no warning;
generally, the duration for such attacks last minutes to days, but large-scale events can
last even longer. Multiple attacks in succession could draw out the length of the attack.
Past Occurrences
Nuisance cyber-attacks, viruses, and attempts at phishing are part of daily operations for
many information technology departments. Recently there were a few instances of
Denial of Service attacks that occurred throughout the southeastern Pennsylvania region.
There has been no major successful attack against large systems or computer networks
that caused an impact to the community.
Probability of Future Frequency
The probability of a cyber-attack is difficult to calculate due to the unpredictability of
human behavior. There is always the chance of malicious attacks against computer
systems. Network security, which moderate to large scale companies have established
lessens the ability to successfully carry out an attack. The smaller companies and
homeowners do not pose a large target due to not having large amounts of critical data or
infrastructure. Companies that have redundancies in place lessen the impact and system
down time that could occur from a cyber-attack.
Potential Impact
Life and Property. There is little impact directly to human life or physical property
from a cyber-attack. All of the impact to lives would be felt through disruption of
infrastructure and the economy.
Infrastructure. There could be major impact to some or all critical infrastructure within
the County, depending on the target of the attack. The reliance upon computer
controllers, power distribution networks, and the communications infrastructure places all
critical infrastructure at risk during cyber-attacks. Infrastructure could experience loss of
power, system controllers, and other critical systems needed to keep the infrastructure
running.
Economy. The economy could be majorly impacted by a cyber-attack. Financial records,
order processing, and many other systems that keep the economy running are computer
based. If those systems are impacted by a cyber-attack or if there is a loss of services
from critical infrastructure, the economy could be severely impacted.
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Dam Breaches
Dam failure is the breakdown, collapse, or other failure of a dam structure characterized
by the uncontrolled release of impounded water that results in downstream flooding. In
the event of a dam failure, the energy of the water stored behind even a small dam is
capable of causing loss of life and severe property damage if development exists
downstream. There are varying degrees of failure; an unexpected or unplanned dam
breach is considered one type of failure. A breach is an opening through a dam which
drains the water impounded behind it. A controlled breach is a planned, constructed
opening and not considered a dam failure event.
Dam failure can result from natural events, human-induced events, or a combination of
the two. Natural occurrences that may cause dam failure include hurricanes, floods,
earthquakes, and landslides; human induced actions may include the deterioration of the
foundation or the materials used in dam construction or malicious attacks.
Dam failure presents a significant potential for disaster, in that significant loss of life and
property would be expected in addition to the possible loss of power and water resources.
The most common cause of dam failure is prolonged rainfall that produces flooding.
Failures due to other natural events such as earthquakes or landslides are significant
because there is generally little or no advance warning. The best way to mitigate dam
failure is through the proper construction, inspection, maintenance, and operation of
dams, as well as maintaining and updating Emergency Action Plans.
Location and Extent
Any dam has the potential for creating a major disaster. There are a number of potentially
hazardous dams in the Commonwealth. Rapid thaw in the spring, poor maintenance,
severe thunderstorms, or rain are factors that may facilitate an actual dam break. Within
Chester County there are 36 dams that meet the state’s definition of a high hazard dam.
Of those there are thirteen that meet the category 1 criteria meaning there is a substantial
population at risk (numerous homes or small businesses or a large business or school) in
the inundation zone. In addition, two dams in neighboring Berks County present a
potential for impacting Chester County if they fail. Figure 14 shows the dam inundation
zones for the dams within Chester County.
Severity, Warning Time, and Duration
Vulnerability of any community is increased by the mere existence of a dam. Proper
maintenance and extensive planning for a potential break greatly reduces the risk factors
involving dam disasters. Dam failures usually occur with little or no notice, wreaking
havoc on an unsuspecting community. After a dam failure, the water would flow
downstream, so the duration of water present in any one area would be short. The
amount of water behind the dam when it breached would determine how far downstream
the water would travel before being able to be held by the stream banks and the amount
of time it would take for the water to reach that point.
Past Occurrences
There have been no dam failures in the history of Chester County.
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Probability of Future Frequency
Because of the tremendous dangers resulting from any dam break, measures are being
taken to keep probability to a minimum. Chester County is always in the process of
evaluating dam data and updating Emergency Action Plans (EAP) which include
evacuation plans for the areas potentially affected by a dam breach. Currently, there are
no dams that do not have an EAP. There is a constant five-year update cycle to the
EAPs, so at any time there might be a handful of dams that do not have a “current” plan
which is one that is less than five years old.
The nature of having dams present within the county allows time for pre-planning of
worse case scenarios. The purpose of the EAP is to outline the agencies that would be
involved in responding to a dam breach, their roles, and the trigger points in which those
agencies would be notified. The plan also establishes requirements when the dam owner
must begin 24 hour surveillance of the dam and thresholds that the County must be
notified to give advanced warning to the potential for a dam failure.
Potential Impact
Life and Property. The largest impact to the community will be if there is a breach of
one of the “Category 1” dams within the county. There is a chance for loss of life and
injuries as well as major property damage to the structures that are within the inundation
zone. The amount of warning time and the ability to evacuate the pre-identified
inundation zone would directly correlate to any injuries and fatalities that occurred.
Infrastructure. The only infrastructure that would be impacted would be those within
the inundation zone. Also, any roads or bridges that are within the inundation area have
the potential to become damaged.
Economy. The largest impact would be loss of function of the dam. If the dam was
created for recreation, power generator, or water treatment purposes, those functions
could cease to exist. After a dam breach, the water that was behind the dam would pass
downstream; the only long term road closures would be related to any roads or bridges
that were washed out from the inundation waters. In addition, any businesses that were
lost as a result of the water released would incur costs due to loss of function and
rebuilding.
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Figure 14. Chester County Dam Inundation Zones (GIS, 2014)
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Extended Utility, Data, or Telecomm Disruptions
Energy emergencies include both fast-developing fuel shortages (such as those caused by
an oil embargo, a power outage, or a natural gas outage) and creeping shortages caused
by rising costs of fuel and electricity. Fuel shortages can also be caused by local
imbalances of supply. For example, the nationwide balance may sometimes appear
satisfactory on paper, but temporary misdistribution can cause fast-developing local
hardships. Strikes and severe cold weather, for example, can disrupt home heating fuel
movement and cause regional shortages.
Utility, data, and telecomm disruptions can also be caused by other factors such as
transportation accidents, intentional attacks on the systems, or caused by a natural hazard
event. With the increased reliance of the community on technology, any long term
disruptions could pose a great threat.
Location and Extent
The entire County is subject to the impacts from an extended utility, data, or telecomm
outages. Unintentional acts usually only impact one or two utilities in a small area.
Intentional attacks have the potential to impact multiple systems simultaneously and
cover a large geographical area.
Severity, Warning Time, and Duration
The cause of the disruption plays a major factor into how long the disruption will last.
Motor vehicle accidents and unintentional disruption due to digging traditionally only
impact a small area and are of short-duration. Intentional attacks against the utility
systems can cause widespread problems and have the potential to last for a long period of
time. In addition, a shortage of energy in one form (e.g. natural gas) can create shortages
in other fuel substitutes (e.g. propane or heating oil). The cascading effects of a utility
outage, such as inability to operate water and wastewater treatment plants, could cause
compounding impacts.
Past Occurrences
During the fuel crisis of 1972-73, Chester County experienced the same effects as the rest
of the nation, including long lines at the gas pumps and problems of providing fuel
supplies for emergency personnel and vehicles. These effects were again experienced in
1979 with the advent of the "odd-even" system.
There were no other human-caused events that created long term or widespread utility,
data, or telecomm outages. Some larger natural hazard event such as the 2014 Ice storm
interrupted utilities for over a week. Small disruptions have occurred due mainly to
accidents involving utilities; those instances however have only had impact limited to
localized areas.
Probability of Future Frequency
The potential always exists for a transportation accident to impact the utility
infrastructure. The systems are designed with redundancies in place, so the isolated
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impact of a single transportation accident has a very low likelihood of impacting more
than a small section of utility service.
Potential Impact
Life and Property. With this type of hazard, not much physical damage would occur to
residential property as a result of the loss of the utilities. Injuries or fatalities could result
from residents trying to compensate for the loss of utilities such as running generators or
other heating devices improperly.
Infrastructure. Critical infrastructure has the potential to suffer large impacts. The
impacts are most likely to be related to loss of function of the facility or damage caused
from cascading events such as loss of a coolant system.
Economy. With increasing reliance upon data networks, the loss of data infrastructure
could cause major economic problems. Impacted facilities could lose valuable data.
There is little if any physical impact to structures, transportation networks, or the
agriculture sector.
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Fires
Fire, whether human-caused or natural, is an ongoing hazard affecting many communities
daily. Fires can be caused by natural events such as lightning strikes, however this
accounts for only a limited number of fires. Within Chester County from 2008 through
2013, investigations have determined that only 32 out of 1519 fires have resulted from
natural causes. The remaining causes of fire fall into either intentional, unintentional, or
undetermined/under investigation categories.
Location and Extent
Fire has been and will continue to be a problem of great concern to Chester County.
Urban and suburban expansion continues to create multiple family dwellings and
industrial complexes vulnerable to potential fire hazards; also, the threat of arson cannot
be overlooked.
In the past 20 years a number of fires caused by arson were the result of two serial
arsonists. In 1999/2000 there were multiple fires in the Kennett Square area caused by
arson and in 2008 there were multiple fires in the Coatesville area caused by arson. In
addition to arson, there is a substantial number of fires that are unintentional. From 2008
through 2013, 1128 out of 1519 fires (74%) were determined to be unintentional.
Severity, Warning Time, and Duration
Although most incidents are well below disaster proportions, the accumulated impact
(including injuries, death, and property loss) is often much greater than the impact of the
few major disasters that occur.
Most fire disasters are averted by early warning and appropriate response. Prevention of
those fire hazards can be greatly improved by public education based on historical
records, past experiences, and examination of circumstances surrounding various
situations. Fires are often brought under control quickly due to highly trained and
dedicated firefighters, most of whom are volunteers.
Past Occurrences
Below is a summary of Fire related incidents from 2008 through 2013:
202 Intentional Fires
o $11,663,949 in property loss
1128 Unintentional Fires
o $94,480,583 in property loss
189 Undetermined/under investigation
o $23,215,957 in property loss
Fatalities
o 1 in the fire service
o 18 civilians
Injuries
o 112 in the fire service
o 288 civilians
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In 2008, an arsonist was setting fires in the Coatesville area for months. An arson
taskforce was assembled with local, county, state, and federal partners to catch the
arsonist. Of the properties that were involved in the fires, 22 were destroyed, 11 were
majorly damaged, 21 received minor damage, and 13 were affected. An estimate of
$3,297,245 in damage to structures and $1,910,625 in content damage occurred as a
result of those fires.
In 2012, a forest fire occurred in French Creek State Park. Due to the dense woods and
the unique needs to fight a forest fire, it took almost a week to place the fire under
control. The urban/wild land interface, requirement of multiple forestry crews and
divisions, and the multiple jurisdictions involved in the response were some of
complexities that were faced. Since the fire was contained in the woods, there was little
to no damage to improved structures.
Probability of Future Frequency
The number of fire incidents over the past five years has remained relatively constant,
averaging between 219 and 300 incidents per year, with a death toll of less than 6 a year.
Public education programs and increased emphasis on the use of smoke detectors is
hoped to decrease fire death and injury rates. The increased use of home sprinkler
systems also has a dramatic reduction in the severity of fires that start in sprinklered
homes.
Although forest fire incidents and losses have only occurred once in recent years, it is felt
that public education, coupled with decreasing acreage of forests through industrial and
residential expansion will decrease forest fire hazards. However, the increasing numbers
of houses being built near the forested areas increased the risk of the urban/wild land
interface fires.
Potential Impact
Life and Property. There is the potential for loss of life and injuries within any building
that is on fire. Also, firefighters put themselves at risk while extinguishing the fire. The
impact to structures is the primary impact from fires. The fires are for the most part
contained to no more than a few buildings as a result of a single fire. The losses to
buildings due to wild land fires are minimal.
Infrastructure. The impact to critical infrastructure is limited to minor, short-term
restrictions on transportation pathways. The only major impact to critical infrastructure
would occur if that location was the one that was experiencing the fire.
Economy. Normal fires that occur throughout the year have little impact to the economy.
Incidents such as arson sprees would have a greater impact on the economy due to
multiple buildings being involved as well as the public concern over the arsons.
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Hazardous Material Releases
A hazardous material is defined as a substance or material in a quantity or form which
may pose a danger to life, property, or the environment if improperly stored, shipped, or
handled due to its physical and/or chemical properties.
Location and Extent
In Chester County, the areas of concern involving hazardous materials are:
Industrial sites that manufacture hazardous substances and/or generate hazardous
wastes
Chemical distributors and/or waste users
Highways and major industrial traffic
Railroads through the community
Pipelines through the area
Airports
Fuel and other hazardous chemical storage facilities
Oil well and terminals
Waste disposal systems
Nuclear facility material/waste
Chester County has over 570 miles of liquid and gas pipelines. Ten companies operate 27
lines throughout Chester County. There are approximately 350 miles of pipelines that
transport gas, and 230 miles that transport liquid product. The pipelines traverse 59 of
the 73 municipalities in the county. Additional information about pipelines in Chester
County can be found on the Pipeline Information Center www.chescopagreen.org
Chester County is becoming increasingly vulnerable to the threat of hazardous materials
incidents. New industrial complexes and housing developments increase the potential for
natural gas or petroleum pipeline incidents. Increasing industrialization brings with it
greater sources of hazardous material transportation, storage, use, and waste. The activity
of the Limerick Generating Station and the Peach Bottom Atomic Power Station also
pose a threat involving nuclear material and waste. Chester County currently has 18
hazardous materials waste Superfund sites; 11 of those 18 are listed on the National
Priorities List for Superfund Cleanup.
Any facility using, storing or manufacturing an Extremely Hazardous Substance (EHS)
must meet the reporting criteria under Superfund Amendments and Reauthorization Act
(SARA) Title III, and are required to work with local officials to develop an Emergency
Response Plan in preparation of a potential emergency. According to the Chester County
Annual Report on Hazardous Material Emergency Response Preparedness, Reporting
Year 2013, there were 72 SARA Title III planning facilities in Chester County. There are
403 different chemical used at SARA planning facilities in Chester County. In addition,
there are 437 chemicals at 166 other reporting facilities. These chemicals pose various
levels of concern due to their characteristics, quantity, and use within the facility. The
SARA sites within Chester County are depicted in Figure 15.
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Severity, Warning Time, and Duration
An increasing number of hazardous materials incidents in Chester County are the result
of highway and rail accidents, storage tank leakage, or other events. On occasion, these
events reach major proportions and force people to evacuate and/or lose their homes and
businesses. The majority of hazardous material incidents are small localized incidents,
with many not even requiring a response from the County’s hazardous materials team.
The majority of hazardous materials are used in industry, which have staff
knowledgeable in safe storage and handling of the materials.
The events that do arise are usually related to some type of accident in the workplace or
on the transportation routes within the County. There are also increasing amounts of
chemicals within homes. While the quantities in homes are usually not a significant
source of concern, the potential for two incompatible chemicals mixing and reacting is of
greater concern.
Past Occurrences
Most incidents occur at facilities that are non-SARA facilities. From 2009 through 2013
the following hazardous materials calls occurred:
63 Hazmat Team Responses
o 9 responses at SARA facilities
o 11 transportation related responses
o 43 non-SARA facilities
o 12 civilian injuries
o 6 civilian deaths
82 Hazmat Staff Responses
o 44 petroleum related
o 25 chemical related
o 12 related to suspicious substances
Probability of Future Frequency
The potential for a hazardous materials incident is tremendous considering the growing
number of hazardous materials sites in Chester County. Increasing vulnerability to
hazardous materials, whether raw, or waste, cannot be avoided. However, measures can
be taken to keep risk at a minimum. Regulation and monitoring of hazardous
material/waste facilities should reduce the probability of hazardous materials incidents. In
addition, planning and preparation of response measures for hazardous materials
incidents should minimize the effect of incidents that do occur.
Potential Impact
Life and Property. The majority of hazardous materials incidents within this county
have a limited impact to a small geographic area, sometimes a single building. The
potential exists for a product classified as an extremely hazardous substance to be
released and impact a moderate area of the county. Residents may need to be evacuated
in an area of one or two miles from an incident site.
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Infrastructure. If any infrastructure were to be impacted by a hazardous material
release, it would most likely be the location that is having the release. Many critical
infrastructure facilities within the county utilize hazardous materials as part of their daily
operations. The other impact would be any infrastructure that is within the evacuation
area of a hazardous materials incident. An evacuation would force the operators of that
infrastructure to leave, there by shutting down the infrastructure.
Economy. Depending on the nature of the material that is involved, agriculture crops and
livestock could be impacted. Most hazardous materials events do not last for more than a
day; long term impacts due to evacuations are not a major impact to the economy.
Figure 15. Chester County SARA Facilities (Chester County GIS, 2013)
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Nuclear Incidents
A nuclear or radiation accident is defined by the International Atomic Energy Agency as
“an event that has led to significant consequences to people, the environment or the
facility.” Examples include lethal effects to individuals, large radioactivity release to the
environment, or “reactor core melt.” The prime example of a “major nuclear accident” is
one in which a reactor core is damaged and significant amounts of radioactivity are
released, such as in the Chernobyl disaster in 1986. This could be caused by an accident
or an intentional action.
Location and Extent
Portions of Chester County fall within a ten mile radius Emergency Planning Zone (EPZ)
of two nuclear facilities. Based on information from the 2010 U.S. Census, there are
approximately 2,736 Chester County residents in the Peach Bottom Atomic Power
Station EPZ, and 84,028 Chester County residents in the Limerick Generation Station
EPZ. Figure 16 shows the area in Chester County that falls within an EPZ. The county is
also located, all or in part, in the 50-mile radius "ingestion exposure pathway” of four
facilities. Limerick and Salem include the entire county; Peach Bottom includes all but
the far northeastern tip; Three Mile Island includes the entire western portion of the
county. There are also a number of smaller radiological sources in medical buildings,
academic centers, and used in some commercial businesses.
Severity, Warning Time, and Duration
Should an accident occur at a nuclear power plant, the area within the 10-mile EPZ could
be ordered to evacuate or to shelter-in-place until the incident has been brought under
control. A 50-mile radius around each plant is designated as the ingestion pathway and
may receive some radioactive contaminants in very small amounts. While such amounts
are of lesser concern in terms of external exposure, protection of the food chain,
particularly milk, is important in preventing internal exposure due to ingestion of
radioactive contaminants. When dealing with a nuclear incident the warning time is short
to none and if an incident were to occur the effects could be felt for decades.
Past Occurrences
There have been no large scale nuclear incidents in the history of Chester County. The
last incident involving a radioactive source occurred in 2005, when a Troxler gauge used
by contractors for ground sampling fell off a truck. The device was found with no
evacuations or any other impact to the public.
Probability of Future Frequency
The probability of a radiation release from a nuclear power plant in sufficient quantity to
constitute a threat to the health and safety of the people of Chester County is remote,
given all of the precautions and safety regulations now in effect. However being in
proximity to multiple power plants, the possibility exists for such an event and must
always be taken into consideration. Emergency plans are in place for the residents and
facilities in the 10-mile emergency planning zones. Those plans are trained on and
exercised on a routine basis.
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Potential Impact
Life and Property. If a nuclear incident were to occur at one of the nuclear power plants
the lives and the property within a 10-mile radius of the plant have the potential to be
impacted. Depending on if radiation is released and the quantity will determine the
severity of the impact. There is little physical damage that would be caused from a
radiation release. If there was a radiation release from a nuclear plant, it could make the
area around the plant uninhabitable for decades. Numerous lives could be at risk and
fatalities could occur during the evacuation of such a large area.
Infrastructure. Infrastructure in the affected area would be impacted due to the inability
to have personnel in the area to operate the infrastructure. There would be little physical
damage to any infrastructure due to radiation release.
Economy. If there were a radiation release that affected a large area, the potential exists
that the entire area would have to be evacuated. That evacuation would severely impact
the local economy, causing all business to be shut down. If there were farms within the
area that is impacted by radiation, it is possible that all of the crops and/or livestock
would not be able to be sold.
Figure 16. Chester County Nuclear Planning Zones (Chester County GIS, 2013)
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Transportation Accidents
For the purpose of this plan, a transportation accident is defined as an incident involving
air, rail, or highway travel resulting in death, serious injury, or extensive property loss or
damage. Incidents involving hazardous materials are considered in the hazardous
materials section of this analysis.
Location and Extent
Chester County has three public airports, and nine private airfields. The county is located
beneath the holding patterns of both Wilmington and Philadelphia International Airports.
Chester County is also served by a sizeable rail line system, which includes SEPTA,
Amtrak, Conrail, Octoraro Railroad, Canadian Pacific Rail, East Penn Railroad, and the
Brandywine Valley Railroad.
The Chester County road system includes approximately 3,662 miles of roadway. This
includes approximately 26 miles of turnpike, 1,160 miles of state and federal highways
and 2,476 miles of secondary and tertiary roads.
Severity, Warning Time, and Duration
Rail lines pose a hazard to Chester County residents due to heavy commuter traffic and
transportation of hazardous materials, which is discussed in the hazardous materials
section of this analysis. Chester County experiences heavy traffic on a daily basis as a
result of commuters, large numbers of resident motorists, and travelers utilizing Interstate
76. Increasing urbanization, tourist trade, and the like contribute to the county’s
increasing vulnerability to the hazards of motor vehicle traffic. Transportation accidents
occur with little to no warning. The length of the response can vary depending on the
mode of transportation involved.
Past Occurrences
Chester County has been spared any major aircraft incidents despite its location beneath
holding patterns. Small aircraft incidents have occurred in the past.
Within the last decade, there have been a few rail line incidents. A partial derailment
occurred over the Brandywine Creek in Pennsbury Township, and a freight train in
Valley Township.
There were approximately 4,303 motor vehicle accidents in Chester County in 2012
resulting in 2,517 injuries and 31 fatalities (Figure 17).
Probability of Future Frequency
Chester County is experiencing an increase in traffic. Considering the growing
transportation network, daily commuters, tourists, and increasing population densities,
the county appears vulnerable to accidents involving all modes of available
transportation.
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Potential Impact
Life and Property. There is a potential for a transportation accident to cause injuries,
loss of life, and damages to property. The mode of transportation that is involved in the
accident will determine the scale of loss of life and damages to property. A single car
accident would not cause nearly the same impact as would an aircraft or train accident.
While the damages from a transportation accident can be significant, they are localized to
one area of the County. It is unlikely that a single transportation accident would impact
more than a few municipalities at the same time.
Infrastructure. There is a potential for a transportation accident to affect critical
infrastructure. Industry has been developed around transportation networks to facilitate
the delivery of raw goods and distribution of finished goods.
Economy. Transportation accidents disrupt transportation networks, causing longer
commutes for residents and disruption in commodity flow throughout the county.
Figure 17. 2012 Chester County Transportation Accidents (DVRPC, 2013)
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Hazards Omitted from Hazard Profiles
Table 15 outlines the natural hazards that were left out of the hazard profiling, and the
rationale of omission.
Natural Hazard Rationale for Omission
Avalanche No history, event is highly unlikely given topography/climate
Dust Storm No history
Ice Jams
Although they do occur very rarely and under extreme conditions, ice
jams are unlikely. Given the size of the rivers in and around Chester
County, ice jams would not cause damage or disruption to the county
Invasive Species
There is little impact to the entire community in this county at once from
invasive species. There has been an increase of bugs such as stink bugs
and an increase in the use of pesticides targeted toward those bugs but
they have not had an large impact to the life, property, infrastructure or
economy
Landslide/Mudflow Unlikely given topography
Pestilence Infectious/Contagious Diseases
Radon
While Radon is prevalent within the region, a hazardous impact to the
entire community at once is non-existent. In home radon mitigation
systems are an ongoing measure that homeowners are already
implementing.
Seiche Unlikely given that no large water body (large lake) is present in county
Subsidence
Sink holes have occurred along the route 202 corridor (due to underlying
limestone) and other areas of the county. Sink holes have only caused
relatively minor economic loss and impact to the overall county.
Tsunami Unlikely given that county is located far enough inland, limited seismic
activity
Volcano No volcanoes located in region
Waterspout Unlikely given that no large water body (originating surface) is located
within the county
Wild Fire
There is little expose to large wild lands in Chester County. There are
small pockets of forests and brush throughout the county, but nothing that
is not covered in the fire hazard profile.
Table 15. Natural Hazards Omitted from Hazard Profiles
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Assessing Vulnerability to Hazards
The following sections summarize the methodologies used to perform the vulnerability
analysis portion of the risk assessment. For this plan update, the entire vulnerability
analysis was updated to reflect the new hazard categories, the availability of new data, or
differing loss estimation methodology.
The first step in the vulnerability analysis is to assess the perceived overall risk for each
of the plan hazards. The mitigation committee members participated in a scoping
exercise to subjectively place all relevant hazards into a matrix used to compare various
hazard importance levels based on the potential for the hazard to occur and its capacity to
negatively affect people, structures, infrastructure, and the economy. This exercise helped
to spark discussions about relative risks and the types of impacts commonly experienced.
The natural hazards were given a score from 1 to 5 with 5 being the most severe in the
following areas:
probability of the hazard occurring (5 being a high probability)
impact caused by the hazard (5 being a large impact)
length of warning time given for the hazard (5 being no warning time at all)
duration of the event (5 being a long duration event)
The responses from the hazard mitigation committee members were collected, then
Calculated Priority Risk Index modeled by FEMA as a best practice was used to create a
weighted score of each hazard. The index value is obtained by assigning varying degrees
of risk to four (4) categories for each hazard, and then calculating an index value based
on a weighting scheme. The four areas are given the following weights:
Probability – 45%
Impact – 30%
Warning Time – 15%
Duration – 10%
Table 16 shows the consolidated numbers from the natural hazards vulnerability
assessment.
Hazard Probability Impact Warning Time Duration Weighted Score Rank
Thunderstorms 4.824 2.706 2.941 2.235 3.647 1
Flood 3.882 3.647 3.059 2.706 3.570 2
Winter Storm 3.882 3.529 2.471 3.059 3.482 3
Tornado and
Windstorms 3.059 4.235 3.941 1.882 3.426 4
Drought 3.765 3.529 1.529 4.176 3.400 5
Extreme Temperatures 4.060 3.090 2.240 2.941 3.384 6
Hurricanes 3.412 3.588 1.882 3.000 3.194 7
Earthquake 1.588 2.824 4.471 1.471 2.380 8
Table 16. Natural Hazards Vulnerability Assessment Scoring
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The human-caused hazards were approached in a slightly different manner. The planning
team realized that the human-caused hazards could have completely different impacts on
the different areas of the community. The planning team decided to create a few areas of
focus then rank all of the human-caused hazards on how they would impact that area. The
areas of focus for the vulnerability analysis were:
Education Facilities
Public Gatherings (special events, malls, parks, etc)
Industrial Locations
Healthcare Organizations
Agriculture
Transportation
Critical Commercial Facilities (critical private sector businesses, utility providers,
etc)
Government Facilities
For each of the areas of focus, each of the ten human-caused hazards were scored from
one to five in two areas, the probability of occurrence and the potential impact. The risk
was then weighted using a Department of Homeland Security risk assessment ratio of
probability weighed at 20% and the impact weighted at 80%. The scores were calculated
for each hazard in each area of focus then averaged across all of the responses. The
results of that analysis concluded the following ranking of the human-caused hazards
(Table 17)
Area of Focus Ranking Score Rank
Public Gatherings 2.986 1
Transportation 2.953 2
Healthcare Organizations 2.929 3
Industrial Locations 2.902 4
Critical Commercial 2.899 5
Agriculture 2.879 6
Government Facilities 2.700 7
Education Facilities 2.234 8
Table 17. Human-caused Hazards Area of Focus Ranking
The ranking system was the initial method used to create a ranked listing of the hazards.
The planning team then took that ranking and discussed whether to adjust any of the
rankings. The human-caused planning team decided to make one change in the top
hazards for this plan. It was decided to place the Industrial Locations area of focus in the
top three and move Healthcare Organizations to number 4. This decision was made
because the ranking scores of the two were close and the planning team thought there
would be more benefit to the entire community to focus mitigation planning toward
industrial locations because there is already a high level of preparedness efforts underway
at many healthcare facilities.
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After the top three areas of focus for the human caused hazards were determined, the
hazards within each area were evaluated. The data from the ranking of the human-caused
hazards within the top there areas of concern were as follows (Table 18).
Area of Focus Hazard Score Rank
Public Gatherings Civil Disturbance 4.001 1
Conventional/Improvised Bombs 3.906 2
Armed Attacks 3.891 3
Nuclear Incidents 3.529 4
Hazardous Material Releases 3.288 5
Fires 2.700 6
Transportation Accidents 2.500 7
Extended Utility, Data, or Telecomm Disruptions 2.371 8
Dam Breaches 1.929 9
Cyber Terrorism 1.741 10
Transportation Transportation Accidents 3.682 1
Hazardous Material Releases 3.654 2
Extended Utility, Data, or Telecomm Disruptions 3.498 3
Conventional/Improvised Bombs 3.259 4
Nuclear Incidents 3.259 5
Armed Attacks 3.141 6
Civil Disturbance 2.471 7
Fires 2.453 8
Dam Breaches 2.218 9
Cyber Terrorism 1.892 10
Industrial Extended Utility, Data, or Telecomm Disruptions 3.400 1
Locations Cyber Terrorism 3.394 2
Hazardous Material Releases 3.388 3
Fires 3.276 4
Conventional/Improvised Bombs 3.200 5
Nuclear Incidents 3.182 6
Armed Attacks 3.059 7
Transportation Accidents 2.247 8
Civil Disturbance 1.988 9
Dam Breaches 1.888 10
Table 18. Human-caused Hazards Ranking
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The top three hazards within each of the top areas of focus determined the nine human-
caused hazards that this pan will focus on. The data presented the basis for evaluation in
the Chester County Multi-Jurisdictional Hazards Mitigation Plan with the determination
that the hazards to be considered in this effort would include:
Natural Hazards
Thunderstorms
Flooding (including stormwater floods)
Winter storms
Tornadoes and Windstorms
Drought
Human Caused and Technological Hazards
Public gatherings
1. Civil disobedience
2. Conventional/improvised bombs
3. Armed attacks
Transportation
1. Transportation accidents
2. Hazardous material releases
3. Extended utility data or telecommunication outages
Industrial locations
1. Extended utility data or telecommunication outages
2. Cyber terrorism
3. Hazardous material releases
The planning committee widely recognized the existence of additional potential risks, but
felt that these hazards were the most representative of the major issues currently facing
the county. The community would benefit the most overall by focusing on these top
hazards. During each update of this plan, the entire risk assessment process is reviewed
to determine if the risks are changing over time.
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Capabilities and Mitigation Strategy
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This capability assessment examines the ability of Chester County and the municipalities
within Chester County to implement and manage a comprehensive mitigation strategy,
which includes a range of mitigation actions. The capabilities identified in this
assessment are evaluated collectively to develop recommendations, which support the
implementation of effective mitigation actions throughout the County.
Within Chester County, as enabled by state legislation, each municipality has its own
governing body, passes and enforces its own ordinances and regulations, purchases
equipment, and manages its own resources, including critical infrastructure. Therefore,
an assessment was conducted to evaluate various characteristics and capabilities of each
municipality within the county. The specific capabilities of each municipality are outlined
in the municipal specific section of the plan.
This capability assessment is an evaluation of Chester County’s governmental structure,
political framework, legal jurisdiction, fiscal status, policies and programs, regulations
and ordinances, and resource availability. The evaluation of the categories allows the
mitigation planning team to determine the viability of certain mitigation actions. The
capability assessment analyzes what Chester County and its municipalities have the
capacity to do and provides an understanding of what must be changed to mitigate loss.
The categories that were assessed include:
Legal and Regulatory
Administrative and Technical
Fiscal
Political
Institutional
Legal and Regulatory Capabilities
Pennsylvania municipalities have the authority to govern more restrictively than the state
and county minimum requirements, assuming they are in compliance with all criteria
established in the Pennsylvania Municipalities Planning Code (MPC) and their respective
municipal codes. Municipalities can develop their own policies and programs and
implement their own rules and regulations to protect and serve their local residents. Local
policies and programs are typically identified in a comprehensive plan, implemented via
local ordinances and actions, and enforced through the governmental body or its
appointee.
Municipalities regulate land use via the adoption and enforcement of zoning ordinances,
subdivision and land development ordinances, building codes, building permit
ordinances, floodplain ordinances, and/or stormwater management ordinances. When
effectively prepared and administered, these regulations are an essential part of hazard
mitigation.
The listing of ordinances each municipality has as it relates to hazard mitigation is
outlined in each of the municipal specific pages. In Chester County, each municipality
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regulates land use at the local municipal level. The County can provide technical
experience and assistance in developing ordinances for the municipalities, and reviews
and comments on all proposed ordinances and land developments. This is done mainly
through the Chester County Planning Commission, however other County agencies such
as the Chester County Water Resources Authority work with the municipalities for
specific topics such as stormwater management, water supply availability and protection,
and flood mitigation.
Building Codes
Building codes are important in mitigation because they are developed for regions of the
country in consideration of the hazards present in those regions. Consequently, structures
that are built according to applicable codes are inherently resistant to many hazards, such
as strong winds, floods, and earthquakes, and can help mitigate regional hazards, such as
wildfires.
The Uniform Construction Code (UCC) applies to almost all buildings, excluding
manufactured and industrialized housing (which are covered by other laws), agricultural
buildings, and certain utility and miscellaneous buildings. The UCC has many
advantages, requiring builders to use materials and methods that have been professionally
evaluated for quality and safety, as well as requiring inspections of completed work to
ensure compliance.
All codes enforcement is local, except where municipal (or third party) code officials lack
the certification necessary to approve plans and inspect commercial facilities. The
Pennsylvania Department of Labor and Industry has the responsibility for some
commercial code enforcement in municipalities that do not have the expertise to enforce
commercial building code. The Department of Labor and Industry also has sole
jurisdiction for all state-owned buildings no matter where they are located. All
municipalities within Chester County have adopted and adhere to the standards of the
Pennsylvania Uniform Construction Code (Act 45). Since there is no unincorporated
land within Chester County, the County itself does not have the legal authority to enforce
building codes. The County provides assistance to the municipalities in best practices,
and codes enforcement as it relates to fire safety, if a municipality is unable to perform
those life safety inspections on their own.
Subdivision, Land Development, and Zoning Ordinance
The Pennsylvania Municipalities Planning Code authorizes municipalities to prepare,
enact, and enforce subdivision, land development, and zoning ordinances. The
ordinances can include regulations to control the types of structures build in a specific
area, layout of streets, minimum lot sizes, and the provision of utilities. The County
cannot pass an ordinance that overrules existing ordinances that are in place within a
municipality. The County can provide technical assistance on developing subdivision and
land development ordinances.
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Floodplain Ordinance/NFIP
Floodplain management is the operation of programs or activities that may consist of
both corrective and preventive measures for reducing flood damage, including but not
limited to such things as emergency preparedness plans, flood control works, and
floodplain management regulations. It is in the interest of all property owners in the
floodplain to keep development and land usage within the scope of the floodplain
regulations for their community. This helps keep insurance rates low and ensures that the
risk of flood damage is not increased by property development. Floodplain ordinances
are implemented and enforced at a municipal level. The specifics on which
municipalities have floodplain ordinances and the number of buildings in the floodplain
are outlined in the municipal specific section of the plan.
Municipalities have the option of adopting a single-purpose ordinance or incorporating
these provisions elsewhere, most typically within their zoning, thereby mitigating the
potential impacts of local flooding.
Stormwater Management Plan/Stormwater Ordinance
The proper management of stormwater runoff can improve conditions and decrease the
chance of flooding. The Pennsylvania Department of Environmental Protection’s
Stormwater Management Program assists counties in developing stormwater
management plans for designated watersheds. This planning effort, as required by the
Stormwater Management Act of 1978 (Act 167), results in sound engineering standards
and criteria being incorporated into local codes and ordinances in order to manage
stormwater runoff from new development in a coordinated, watershed-wide approach.
Municipalities have an obligation to implement the criteria and standards developed in
the county stormwater management plan by amending or adopting laws and regulations
for land use and development. The implementation of stormwater management criteria
and standards at the local level is necessary because municipalities are responsible for
local land use decisions and planning. Municipalities benefit from the watershed
stormwater management plan and use the information to reduce runoff, pollution and
flooding as part of their land use considerations. The stormwater management plan is
designed to aid the municipality in reducing stormwater and flooding impacts for the land
uses it has proposed. A major goal of the watershed plan and municipal regulations is to
prevent future drainage problems and avoid the aggravation of existing problems.
CCWRA has completed a Countywide Act 167 Plan and all 73 municipalities have
adopted Act 167 stormwater management ordinances. These ordinances were developed
in conjunction with the guidelines established in the Pennsylvania Stormwater
Management Act (Act 167) and the countywide Act 167 Plan.
Comprehensive Plan
A comprehensive plan is a policy document that identifies goals and guides the future
growth and physical development of a municipality. The comprehensive plan is a
blueprint for housing, transportation, community facilities, utilities, and land use. It
examines how the past led to the present and charts the community’s future path. The
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Municipalities Planning Code (MPC) requires counties to prepare and maintain a county
comprehensive plan. In addition, the MPC requires counties to update the comprehensive
plan every 10 years.
The Chester County Planning Commission is responsible for maintaining and updating
the County Comprehensive Plan. Landscapes2 is the current comprehensive plan for
Chester County. It includes a plan for land use, which, among other provisions, suggests
that the plan give consideration to floodplains and other areas of special hazards and
other similar uses. Municipalities are also enabled to prepare a comprehensive plan and
every municipality in Chester County has completed a comprehensive plan individually
or as part of a multi-municipal effort.
Capital Improvement Plan
A capital improvement plan is a multi-year policy guide that identifies needed capital
projects and is used to coordinate the financing and timing of public improvements.
Capital improvements relate to streets, stormwater systems, water distribution, sewage
treatment, and other major public facilities. The Chester County Commissioners
annually approve a comprehensive 5-year capital improvement plan which identifies both
sources and uses of funds to support strategic objectives.
Emergency Operations Plan (EOP)
The Pennsylvania Emergency Management Services Code (Title 35) requires all political
jurisdictions in the Commonwealth to “Prepare, maintain and keep current a disaster
emergency management plan for the prevention and minimization of injury and damage
caused by disaster, prompt and effective response to disaster and disaster emergency
relief and recovery of consonance with the Pennsylvania Emergency Management Plan.”
Chester County’s EOP, updated in April of 2014, is an all-hazards plan and is the basis
for a coordinated and effective response to any emergency that may affect lives and
property in Chester County. The EOP, or portions thereof, would be implemented when
emergency circumstances warrant it. In addition to the basic EOP, the County also
maintains a variety of hazard specific annexes to the EOP that outline specific actions to
be taken in addition to those outlined in the EOP. The hazard specific annexes are
created for events that occur most frequently within the County. Each municipality
within Chester County has their own EOP which outlines municipal actions that need to
be taken during an emergency.
Administrative and Technical Capabilities
Chester County’s 73 municipalities conduct daily operations and provide various
community services according to local needs and limitations. Some adjacent
municipalities have formed cooperative agreements and work jointly with their
neighboring municipalities for purchasing, equipment sharing, or to provide services such
as police protection, fire and emergency response, infrastructure maintenance, and
wastewater management. Other municipalities have chosen to operate on their own. Each
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municipality varies in staff size, resource availability, fiscal status, service provision,
constituent population, overall size, and vulnerability to the identified hazards.
County Departments and Authorities
Chester County Department of Emergency Services
The Mission of the Department of Emergency Services is to promote and assist in
providing safety and security to Chester County citizens so they can work, live, and grow
in a healthy and safe community.
The Department of Emergency Services is comprised of motivated, dedicated and trained
professionals providing exceptional leadership for County-wide emergency services
operations.
Emergency call receipt, interim assistance, response coordination and responder
dispatch.
Fire, emergency medical, hazardous materials and rescue.
Training coordination and administration.
Disaster response planning, coordination, recovery and mitigation.
Hazardous materials emergency response.
Fire prevention and investigation.
Chester County Health Department
The mission of the Chester County Health Department is to provide personal and
environmental health services to residents and visitors so that they may grow, live and
work in healthy and safe communities. The Health Department is responsible to the
County Commissioners through a five-member Board of Health, all Chester County
residents. Services are available to residents regardless of race, color, religious creed,
ancestry, national origin, age, handicap or sex.
The Local Health Administration Law directs the Health Department to prevent or
remove conditions which constitute a menace to public health; to make and enforce rules
and regulations, and institute such programs as may be necessary for the promotion and
prevention of the public health; to execute the powers and duties vested in it by the laws
of the Commonwealth, and the rules and regulations of the State Department of Health
and other departments, boards, or commissions of the state government.
Chester County Planning Commission
In Pennsylvania, planning responsibilities are delegated to each local municipality and
county through the Municipalities Planning Code (MPC). The mission of the Chester
County Planning Commission is to provide future growth and preservation plans to
citizens, so that they can enjoy a Chester County that is historic, green, mobile and
prosperous. The primary goal of the Planning Commission is to implement the
department’s strategic business plan through the recommendations of Landscapes2, the
County comprehensive policy plan, in partnership with municipalities and other
stakeholders. Specific objectives of the Planning Commission related to hazard
mitigation include action on:
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• state-mandated subdivision and ordinance review requirements under the MPC
(Act 247)
• state-mandated sewage facilities planning reviews under Act 537
• the municipal planning grant program under the Vision Partnership Program;
• the Transportation Improvement Inventory as part of the County’s Transportation
Improvements Plan (TIP)
• planning websites for the efficient dissemination of information
• GIS technology
• training opportunities for municipal planning commission members
• coordination activities with SEPTA, PennDOT, and DVRPC and other regional
agencies
Chester County Water Resource Authority
The Chester County Board of Commissioners established the Chester County Water
Resources Authority (CCWRA) in 1961 under the PA Municipal Authorities Act as a
county-wide municipal authority for the purposes of providing flood protection and water
resources management for Chester County. CCWRA owns and operates four regional
flood control facilities that provide flood protection for 23 municipalities, and a water
supply reservoir that serves as a water source for public water supplies for the greater
Coatesville region. CCWRA also maintains a cooperative program with the U.S.
Geological Survey that provides county-wide monitoring of water resources conditions to
assist in water supply management, and flood and drought management and response,
among other uses. CCWRA also provides planning and technical information, guidance
and assistance to municipalities in other aspects of water resources management
including flood mitigation, stormwater management, water supply planning, source water
management and protection, groundwater management and protection, and stream water
quality restoration and protection.
Emergency Management Coordinator
Emergency management is a comprehensive, integrated program of mitigation,
prevention, preparedness, response, and recovery for emergencies/disasters of any kind.
No public or private entity is immune to disasters, and no single segment of society can
meet the complex needs of a major emergency or disaster on its own.
A municipal emergency management coordinator is responsible for emergency
management within his/her respective municipality. The responsibilities of the
emergency management coordinator include:
Prepare and maintain a current disaster emergency management plan
Establish, equip, and staff an emergency operations center
Provide individual and organizational training programs
Organize and coordinate all locally available manpower, materials, supplies,
equipment, and services necessary for disaster emergency readiness, response,
and recovery
Adopt and implement precautionary measures to mitigate the anticipated effects
of a disaster
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Cooperate and coordinate with public and private agencies
Provide prompt information regarding local disaster emergencies to appropriate
local, County, and Commonwealth officials or agencies and the general public
Chester County and all its municipalities have an emergency management coordinator.
Emergency Management coordinators go through a training and certification process
developed by the Pennsylvania Emergency Management Agency.
Intergovernmental Cooperation
Intergovernmental cooperation is one manner of accomplishing common goals, solving
mutual problems, and reducing expenditures. Chester County and its municipalities
demonstrate a high level of intergovernmental cooperation on the local, county, and
regional level. Meetings between all levels of governments occur on a frequent basis.
The five counties in southeastern Pennsylvania are part of a regional task force. The
regional task force provides a mechanism for the counties and other stakeholders to meet
on a regular basis on a variety of different topics. The task force is composed of five
working groups: infrastructure, public safety, emergency response, health and human
services, and internet technology and communications.
Municipal Engineering
A municipal engineer performs duties as directed in the areas of construction,
reconstruction, maintenance and repair of streets, roads, pavements, sanitary sewers,
bridges, culverts, and other engineering work. The municipal engineer reviews and/or
prepares plans, specifications, and estimates of the work undertaken within the
municipality. Municipalities have an engineer on staff or access to one through contracts.
The County has access to engineers for technical advice or to assist with County projects.
Plan Interrelationships
Ensuring consistency between planning mechanisms is critical. Some jurisdictions choose
to couple the comprehensive plan with the mitigation plan. Chester County purposely
keeps the plans separate. While the two plans are aligned along some of the same issues,
the two plans take a different focus. The Chester County Planning Commission is
heavily involved in the update of this Mitigation plan to help ensure that the Mitigation
Plan and Landscapes2, Chester County’s Comprehensive Plan, are aligned where
appropriate.
Spatial Data, Mapping and Analysis
Spatial and tabular data are linked in a computerized, visual format through the use of
sophisticated Geographic Information Systems (GIS) technology. Through GIS projects it
is possible to accomplish environmental restoration, economic development, “smart
growth” land use planning, infrastructure development, and overall planning.
GIS services are available to County Departments through the Chester County
Department of Computer Information Services. GIS services are also made available to
municipalities who become part of the Chester County GIS Consortium. Municipalities
have varying levels of ability when it comes to GIS capabilities.
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Transportation Improvement Program
The Transportation Improvement Program (TIP) is the region’s agreed-upon list of
specific priority projects. The TIP lists all projects that intend to use federal funds, along
with non-federally funded projects that are regionally significant. The list is multimodal;
in addition to the more traditional highway and public transit projects, it includes bicycle,
pedestrian, and freight-related projects as well.
Fiscal Capabilities
Fiscal capability is important to the implementation of hazard mitigation activities. Every
jurisdiction must operate within the constraints of limited financial resources. The
following information pertains to various financial assistance programs pertinent to
hazard mitigation.
State, Federal, and Private Sector Grants
A variety of grant programs are available to the County. Some of the grant programs
include:
Community Development Block Grant Program
Hazard Mitigation Grant Program
Hazardous Materials Emergency Preparedness Grant Program
Homeland Security Grant Program
Post-Disaster Public Assistance funding
Private Sector Grants
Radiological Emergency Preparedness Grant Program
Urban Area Security Initiative Grant Program
Vision Partnership Program
Additional grants in the community and region
The amount of money available from the various grants and the amount of money that is
available to focus on hazard mitigation varies by grant and by year.
Capital Improvement Financing
Most capital improvement projects involve the outlay of substantial funds, and local
government can seldom budget for these improvements in the annual operating budget.
Therefore, numerous techniques have evolved to enable local governments to finance for
capital improvements over a time period exceeding one year. Public finance literature and
state laws governing local government finance classify techniques that are allowed to
finance capital improvements. These techniques include: revenue bonds; lease-purchase,
authorities and special districts; current revenue (pay-as-you-go); reserve funds; and tax
increment financing. Some of the municipalities as well as the County have a process for
Capital Improvements. Mitigation projects can potentially be put into Capital
Improvement Plans for future funding. The County has a capital budgeting plan for
future development needs.
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Municipal Authorities
Municipal authorities are most often used when major capital investments are required. In
addition to sewage treatment, municipal authorities have been formed for water supply,
airports, bus transit systems, solid waste, and other purposes. Municipal authorities have
powers to receive grants, borrow money, and operate revenue-generating programs.
Municipal authorities are authorized to sell bonds, acquire property, sign contracts, and
take similar actions. Depending on the mitigation action identified, municipal authorities
might be an avenue to help pay for the proposed action.
Political Capabilities
Political capability refers to a jurisdiction’s incentive or willingness to accomplish hazard
mitigation objectives. Local decision makers may not rank hazard mitigation as a high
priority task if there are other, more immediate political concerns. Unfortunately, it often
takes a disaster to get people thinking about hazard mitigation. Responding to and
recovering from a disastrous event can exhaust local resources, thereby elevating hazard
mitigation to the forefront. Cooperation among elected officials, planning commission
members, emergency management officials, and others is essential to achieve hazard
mitigation objectives. Maintaining open lines of communication and sharing up-to-date
information is a crucial step.
Council of Governments
A Council of Governments (COG) is a general, multi-purpose, cooperative organization
established to enable a group of municipalities to work together on mutually beneficial
projects. A COG has a broad responsibility; it may study and propose new joint programs
and projects and is almost always composed of elected officials. There are a variety of
organizations that work across municipal boundaries within Chester County. There are
two COG’s within Chester County, the Western Chester County COG and the West
Chester Area COG. In addition, regional emergency management groups have been
developed in various areas usually centered around school district boundaries.
Institutional Capabilities
As detailed previously, Chester County’s 73 municipalities conduct their own daily
operations and provides various community services according to local needs and
limitations. Some of these municipalities have formed cooperative agreements and work
jointly for purchasing, equipment sharing, or to provide services, such as solid waste
disposal and water supply management. Each municipality varies in size of staff, resource
availability, financial status, service provision, constituent population, and vulnerability
to the identified hazards.
In addition to the institutional capability of the municipal government structure described
here, the County is capable of engaging in hazard mitigation activities. Chester County
has its own mitigation goals and objectives, staff, resources, budget, and equipment to
mitigate identified hazards. When partnered with local municipalities, the state, the
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federal government, local councils of government, environmental groups, or other
entities, the results can be very positive.
Hazard Mitigation Actions
Table 19 is a listing of initiatives that could change the impact of a hazard, reduce
exposure to a hazard, reduce vulnerability to a hazard, or increase the ability to respond
to or be prepared for a hazard. The list is not exhaustive or site-specific. Its purpose is to
provide a baseline of initiatives that are backed by a planning process, are consistent with
the County’s goals and are within the capabilities of the County to implement. There are
many actions that are already occurring and stated in the actions to ensure they continue
to occur to maintain the mitigation efforts already underway within the County. Input
was solicited from Chester County Mitigation Committee members on the County’s
hazards, vulnerabilities and possible corresponding mitigation measures.
Mitigation actions are also outlined in each municipal specific section of the plan. The
municipal mitigation actions are focused on specific projects where the County actions
are more broadly focused. The municipalities will also work toward meeting the
countywide actions as well as their specific projects.
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Mitigation Action Matrix
ID Mitigation Action Goals Met Timeframe Responsible Agency Potential Resources
All Hazards AH-1 Catalog critical facilities and infrastructure
within the County
3 Ongoing DES, Planning, Health Staff time
AH-2 Upgrade and further develop the county-wide
GIS database that incorporates county
infrastructure, critical facilities, land use, and
hazard zones
1, 2, 3 Ongoing DCIS, DES, Planning,
CCWRA, Health
Staff time, HSGP,
UASI
AH-3 Adhere to statewide Uniform Construction Code
for new construction
3, 4 Ongoing Municipalities Staff Time
AH-4 Provide regular updates to the countywide Mass
Care Plan
1 Short-term DES, Health, ARC Staff Time
AH-5 Increase mutual aid and interagency agreements
to support preparedness, mitigation, and response
activities in Chester County
1, 2 Ongoing Municipalities, DES,
Procurement
Staff Time
AH-6 Periodically review County response plans and
response teams to ensure they meet the needs of
the community
1, 2, 3 Ongoing DES Staff Time
AH-7 Promote and provide emergency management
training opportunities
3 Ongoing DES Staff Time
AH-8 Arrange and hold hazard mitigation workshops
for county residents
5, 6 Long-term DES, FEMA, PEMA,
Planning, CCWRA
Staff Time, County
funding, HMGP
AH-9 Maintain and foster communications with PEMA
and FEMA region III-Mitigation Division
5 Ongoing DES Staff Time
AH-10 Examine federal funding opportunities at
conference, workshops, and following disasters
5 Ongoing DES Staff Time
AH-11 Enhance the communications equipment between
the County and the municipalities
1, 2 Long-term DES HSGP, HMGP,
RERP,UASI
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AH-12 Enhance the County website to create a place to
consolidate public information related to disaster
response and recovery
3, 5, 6 Short-term DES, Commissioners
Officer
Staff Times
AH-13 Continue infrastructure improvements through
community development
2, 3, 4 Ongoing DCD CDBG
AH-14 Continue to provide community outreach and
education about emergency preparedness and
actions to take during an emergency. Develop a
branded public information campaign that could
be used by multiple County departments
2, 6 Ongoing DES, Health, CCWRA,
Planning
Staff Time, HSGP,
HMGP, UASI
AH-15 Implement a system to report blocked/closed
roads
1, 2 Short-term DES, Planning, DCIS Staff Time, HSGP,
UASI
AH-16 Provide education to the municipalities on
resident evacuation processes and need
1, 2 Short-term DES Staff Time
AH-17 Provide education to the municipalities on
tracking road closures
1, 2 Short-term DES Staff Time
AH-18 Promote awareness of mental health services and
resources throughout all of the facilities within
the County to include schools, workplaces, and
healthcare facilities
5 Long-term DES, MHIDD Staff Time
AH-19 Increase the involvement of mental health
professionals in the Disaster Crisis Outreach
Team (DCORT) and increase the network of
mental health responders
5 Ongoing MHIDD, DES Staff Time
Thunderstorms TS-1 Educate municipalities on the importance of
streetscape planning and vegetation control such
as not planting trees under power lines
2, 4, 5 Short-term Planning Staff Time
TS-2 Sustain tree management programs around power
lines
2 Ongoing Municipalities, private
sector
Staff Time, agency
budget
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TS-3 Encourage new development planning to include
burying of utility cables
1, 2 Ongoing Municipalities, Planning Staff Time
Flooding F-1 Include flood mitigation recommendations and
NFIP program information in public education
materials prepared by the Department of
Emergency Services for Chester County
5, 6 Ongoing Planning, DES,
CCWRA
Staff time, County
Funding, HMGP,
HSGP, PS, UASI
F-2 Educate county resident on the NFIP following
flood events
5, 6 Ongoing DES, CCWRA Staff time
F-3 Pursue local mitigation efforts to improve areas
that are vulnerable to flooding including both
repetitive and non-repetitive loss structures
within floodplains
5 Ongoing Municipalities with
support from Planning,
CCWRA, Conservation
District, DES
HMGP, CDBG, PS
F-4 Encourage upgrades and improvements to
stormwater runoff capabilities when
reconstructing roads
1, 2, 3 Ongoing PennDOT,
Municipalities, DES,
Planning, CCWRA
Staff time
F-5 Recommend that municipalities update flood
ordinances after the update to the FEMA flood
study and flood maps
2, 3, 4 Ongoing Municipalities,
Planning, CCWRA
Staff Time, VPP
F-6 Follow state and County stormwater regulations 1, 2, 3, 4 Ongoing Municipalities Staff Time
F-7 Enforce floodplain management ordinances 1, 2, 3, 4 Ongoing Municipalities Staff Time
F-8 Implement the Act 167 Plan (Stormwater
management)
1, 2, 3, 4 Short-term Municipalities,
CCWRA
Staff Time
F-9 Maintain integrity and functions of existing
regional flood control facilities
1, 2 Ongoing CCWRA, Pa DCNR Staff Time
F-10 Maintain and provide municipalities with
updated emergency action plans for high hazard
dams
1, 2 Ongoing CCWRA, Dam Owners,
Pa DEP, DES
Staff Time
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F-11 Develop and implement a model natural
conservation ordinance for the municipalities to
adopt
2, 4 Short-term Planning, Municipalities Staff Time
F-12 Continue open space preservation actions 2, 4 Ongoing Open Space, Planning Staff Time, County
funds
F-13 Continue to maintain the stream gauges within
the County
1, 2, 3 Ongoing CCWRA, DES County funds
F-14 Install stream gauges if an additional area is
identified to benefit from one
1, 2 Long-term DES, CCWRA HSGP, HMGP,
UASI
F-15 Provide education to the municipalities on flood
gauges
6 Short-term DES, CCWRA Staff Time
F-16 Install roadway gates to be closed off flood prone
intersections/roads during flood incidents and
signage to warn motorists of the closed road
1, 2 Short-term DES, Municipalities HSGP, HMGP,
UASI
F-17 Study the traffic control boxes that would be
exposed to riverine or stormwater flooding to
determine if they are able to withstand the water
3 Long-term DES, Planning Staff Time, HSGP,
HMGP, UASI
F-18 When provided by FEMA, evaluate and apply
FEMA non-regulatory electronic floodplain
mapping and mitigation tools, where appropriate.
4, 5, 6 Short-term CCWRA, DES Staff Time
F-19 Encourage municipal Code Enforcement
Officials to become trained in Floodplain
Management and NFIP Programs
1, 2 Ongoing CCWRA, Planning,
DES
Staff Time
Winter Storms WS-1 Provide public information on utility outages and
the need to prepare for storms
6 Ongoing DES Staff Time, HSGP,
HMP, USAI
WS-2 Identify Snow Emergency Routes in all
municipalities to increase clearing efforts and
travel ability of residents
1, 2 Long-term Municipalities Staff Time,
Municipal budgets
WS-3 Improve storm drains throughout the County to 1, 2 Long-term Municipalities, Municipal and State
Chester County Capabilities and
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handle snow melt PennDOT budgets, HMGP
WS-4 Plant bushes/other vegetation to stop drifting
snow in known problem areas
2 Short-term Municipalities Staff Time,
Municipal Budgets
WS-5 Encourage municipalities to adopt an ordinance
outlining the process and implementation a
declaration of a snow emergency
1, 2 Short-term DES Staff Time
Tornadoes/Wind Storms TOR-1 Enhance the Household hazards waste program
to reduce post event hazardous debris
1, 2 Short-term DES, Health, Solid
Waste Authority
HSGP, HMGP,
UASI
TOR-2 Develop a countywide Debris Management Plan 1, 2 Short-term DES, Health Staff Time, HSGP
TOR-3 Provide public information on debris
management
6 Short-term DES, Health, Planning Staff Time, HSGP,
UASI
TOR-4 Retrofit critical public facilities with safe rooms 1, 2 Long-term DES HMGP
Drought D-1 Provide public information on the effects of
droughts on public and private wells
6 Short-term DES, CCWRA, Health Staff Time, HSGP,
UASI
D-2 Promote sustainability programs and green
practices throughout the County
3 Ongoing Planning, CCWRA,
Conservation District,
Open Space
Staff Time
D-3 Monitor and manage reservoirs and streamflows
to sustain water sources needed to meet public
water supply needs
3, 5 Ongoing CCWRA, Reservoir
Owners
Staff Time
Human Caused – Public Gatherings
PG-1 Encourage security check of bags/coolers at
public gathering
1, 2 Short-term Event sponsors,
Sheriff’s Office, Police
Departments
Event Sponsor,
Staff Time
PG-2 Plan for and implement strengthened security at
public events
1, 2 Short-term Event sponsors,
Sheriff’s Office, Police
Departments
Event Sponsor,
Staff Time
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PG-3 Utilize sheriff K-9 teams for pre-event facility
screening at large events
1, 2 Ongoing Event sponsors,
Sheriff’s Office
Event Sponsor,
Staff Time
PG-4 Provide training for public leaders, coaches,
referees on conflict de-escalation
1, 2 Long-term Sheriff’s Office, Police
Departments, DA’s
Office, DES
Staff Time, HSGP,
UASI
PG-5 Investigate the interaction of public agencies and
camera data from private companies/citizens
1, 2 Long-term Sheriff’s Office, DA’s
Office, DES
Staff Time, HSGP,
UASI
PG-6 Purchase temporary mobile cameras to set up for
events
1, 2 Short-term Sheriff’s Office, DA’s
Office, DES
Staff Time, HSGP,
UASI
PG-7 Utilize temporary mobile cameras during large
events to monitor safety and security
1, 2 Ongoing Sheriff’s Office, DA’s
Office, DES, Police
Departments
Event Sponsor,
Staff Time
PG-8 Inform leaders of large events about the benefits
of not providing alcohol at large events
1, 2 Short-term Sheriff’s Office, DA’s
Office, DES, Police
Departments
Staff Time, HSGP,
UASI
PG-9 Continue to train staff to respond to critical
incidents and maintain the team of attorneys that
is available for large incidents
1, 2 Ongoing DA’s Office, DES, ERT
Teams
Staff Time, County
Budget
PG-10 Increase advanced planning through use of the
incident action plan process
1, 2 Ongoing DES Staff Time
Human Caused – Transportation
TRF-1 Work with the railroad industry to address safety
concerns and aging rail infrastructure within the
County
1, 2 Short-term DES, Planning Staff Time,
PHMSA
TRF-2 Provide ongoing cleaning and maintenance of
roadways
1 Ongoing Municipalities,
PennDOT
Staff Time, Agency
budgets
TRF-3 Utilize municipal and state mobile roadway signs
(VMS signs) during emergency events
1 Ongoing DES, PennDOT,
Municipalities
Staff Time
TRF-4 Install back-up power sources for traffic signals 1, 3 Short-term DES, Municipalities, Agency Budgets,
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(generator, battery, solar) PennDOT HSGP, HMGP
TRF-5 Coordinate utilization of privately owned digital
billboards for emergency usages
1 Long-term DES, Planning Staff Time
TRF-6 Through coordination, stagger traffic during
delays/early releases for schools, government,
and private sector during a disaster
1, 2 Long-term DES, Planning Staff Time
TRF-7 Provide public education on traffic accident
reduction
6 Ongoing DES, Planning Staff Time, County
Budget, HSGP,
HMGP, UASI
TRF-8 Provide public information on the PennDOT
color coded detour routes installed around major
routes within the County.
6 Ongoing Planning, DES, DVRPC Staff Time, County
Budget, HMGP
TRF-9 Continue to grow partnerships with public and
private transit agencies to utilize their services
during emergency situations
1, 3 Ongoing DES, Planning Staff Time
TRF-10 Enforcement of traffic laws 1, 2 Ongoing Police Departments Staff Time
Human Caused - Industrial Locations
IL-1 Provide private sector education/outreach related
to cyber security best practices
3 Short-term DES, DCIS, CC FIRST HSGP, HMGP, PS,
UASI
IL-2 Conduct power assessment for critical
infrastructure/key resources to determine
emergency generator needs and coordinate
information with the Army Corps of Engineers
3 Short-term DES Staff Time, HSGP,
UASI
IL-3 Purchase backup generators for critical
infrastructure/key resources
3 Short-term Private Sector, DES Agency Budgets,
HSGP, HMGP
IL-4 Plan for replenishment fuel for generators 3 Short-term Private Sector, DES Staff Time
IL-5 Conduct reviews of SARA site plans to ensure
they are taking into consideration all of the
critical facilities surrounding their site
1, 2 Long-term DES Staff Time,
PHMSA
IL-6 Continue to engage the private sector to become 3, 6 Ongoing DES Staff Time,
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involved in emergency preparedness
PHMSA
IL-7 Continue to provide the County HazMat team
tours of large SARA facilities within the county
to maintain familiarization of facility layouts
1, 2 Ongoing DES Staff Time, HMEP
Table 19. Potential hazard mitigation actions
Under timeline for completion, the County has identified the following parameters:
Ongoing: Initiative is currently being implemented under existing programs and budgets.
Short-term: Initiative can be completed within 1 to 5 years once funding has been secured.
Long-term: Initiative will take 5 or more years to complete once funding has been secured.
Under the potential funding sources, the acronyms align with the following programs:
CDBG: Community Development Block Grant Program
HMEP: Hazardous Materials Emergency Preparedness Grant
HMGP: Hazard Mitigation Grant Program
HSGP: Homeland Security Grant Program
PHMSA: Pipeline and Hazardous Material Safety Administration Technical Assistance Grant
PS: Private Sector Grants
RERP: Radiological Emergency Response Program
UASI: Urban Area Security Initiative
VPP: Vision Partnership Program
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2010 Mitigation Plan Action Status
Action # Completed Carry Over Removed Comments
1.1.1 Is now action F-1
1.1.2 Is now action F-2
1.2.1 Combined with 1.3, is now action F-3
1.2.2
1.3 Combined with 1.2.1, is now action F-3
1.4 Is now action F-4
2.1
2.2 Is now action AH-1
2.3 Is now action AH-2
3.1.1 Is now action AH-3
3.1.2 Is now action F-5
3.1.3 Is now action F-6
3.2
3.3 Is now action F-7
4.1 Is now action AH-4
4.2 Is now action AH-5
4.3 Reworded into action AH-6
4.4.1 Is now action AH-7
4.4.2 Is now split between action F-9 and F-10
4.5
5.1
5.2 Is now action AH-8
5.3 Is now action AH-9
5.4 Is now action AH-10
Table 20. 2010 Mitigation Plan Action Status
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Appendices
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Appendix A: Acronyms
CCWRA Chester County Water Resources Authority
CDBG Community Development Block Grant Program
COG Council of Governments
DA’s Office District Attorney’s Office
DCIS Department of Computing and Information Services
DES Department of Emergency Services
DMA Disaster Mitigation Act
DVRPC Delaware Valley Regional Planning Commission
EOP Emergency Operations Plan
ERT Emergency Response Team
FEMA Federal Emergency Management Agency
GIS Graphical Information Services
HMEP Hazardous Materials Emergency Preparedness Grant
HMGP Hazard Mitigation Grant Program
HSGP Homeland Security Grant Program
MPC Municipal Planning Code
NCDC National Climate Data Center
NFIP National Flood Insurance Program
Pa DCNR Pennsylvania Department of Conservation and Natural Resources
PEMA Pennsylvania Emergency Management Agency
PHMSA
Pipeline and Hazardous Material Safety Administration Technical Assistance
Grant
PS Private Sector
RERP Radiological Emergency Response Program
TIP Transportation Improvement Program
UCC Uniform Construction Code
USAI Urban Area Security Initiative
VPP Vision Partnership Program
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Appendix B: Planning Team Agencies
Natural Hazards Planning Team
Chester County Departments Partner Agencies
Assessment Department Chester County Association of Township Officials
Conservation District Chester County Chamber of Business & Industry
Department of Community Development Chester County FIRST
Department of Emergency Services Chester County Water Resources Authority
Facilities and Parks DelChester Public Works Association
Health Department East Brandywine Township
Open Space Preservation Elverson Borough
Planning Commission Franklin Township
North Coventry Township
Pocopson Township
Wallace Township
West Bradford Township
West Chester University
West Nantmeal Township
Human-Caused Hazards Planning Team
Chester County Departments Partner Agencies
Department of Computing and Information Services Charlestown Township
Department of Emergency Services Chester County Association of Township Officials
District Attorney's Office Chester County Fire Chief's Association
Facilities and Parks Chester County Chamber of Business & Industry
Health Department Chester County FIRST
Planning Commission Chester County Water Resources Authority
Sheriff's Office Department of Homeland Security
Delaware Valley Intelligence Center
East Fallowfield Township
Owen J. Roberts School District
PECO
Pennsbury Townships
Phoenixville Borough
Upper Uwchaln Township
Westtown Township
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Appendix C: Public Risk Assessment Survey Results
Natural Hazards
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Human-Caused Hazards
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Previous Impact
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Municipal Mitigation Assessment Annexes
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Municipality
Atglen Borough ....................................................................................................... 116
Avondale Borough .................................................................................................. 118
Birmingham Township ........................................................................................... 120
Caln Township ........................................................................................................ 122
Charlestown Township ........................................................................................... 124
Coatesville City ....................................................................................................... 126
Downingtown Borough ........................................................................................... 128
East Bradford Township ......................................................................................... 132
East Brandywine Township .................................................................................... 134
East Caln Township ................................................................................................ 136
East Coventry Township ......................................................................................... 138
East Fallowfield Township ..................................................................................... 140
East Goshen Township ........................................................................................... 142
East Marlborough Township................................................................................... 144
East Nantmeal Township ........................................................................................ 146
East Nottingham Township..................................................................................... 148
East Pikeland Township .......................................................................................... 150
East Vincent Township ........................................................................................... 152
East Whiteland Township ....................................................................................... 154
Easttown Township ................................................................................................. 156
Elk Township .......................................................................................................... 158
Elverson Borough ................................................................................................... 160
Franklin Township .................................................................................................. 162
Highland Township ................................................................................................. 164
Honey Brook Borough ............................................................................................ 166
Honey Brook Township .......................................................................................... 168
Kennett Square Borough ......................................................................................... 170
Kennett Township ................................................................................................... 172
London Britain Township ....................................................................................... 174
London Grove Township ........................................................................................ 176
Londonderry Township ........................................................................................... 178
Lower Oxford Township......................................................................................... 180
Malvern Borough .................................................................................................... 182
Modena Borough .................................................................................................... 184
New Garden Township ........................................................................................... 186
New London Township........................................................................................... 188
Newlin Township .................................................................................................... 190
North Coventry Township ...................................................................................... 192
Oxford Borough ...................................................................................................... 194
Parkesburg Borough................................................................................................ 196
Penn Township........................................................................................................ 198
Pennsbury Township ............................................................................................... 200
Phoenixville Borough ............................................................................................. 202
Pocopson Township ................................................................................................ 204
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Sadsbury Township ................................................................................................. 206
Schuylkill Township ............................................................................................... 208
South Coatesville Borough ..................................................................................... 210
South Coventry Township ...................................................................................... 212
Spring City Borough ............................................................................................... 214
Thornbury Township .............................................................................................. 216
Tredyffrin Township ............................................................................................... 218
Upper Oxford Township ......................................................................................... 220
Upper Uwchlan Township ...................................................................................... 222
Uwchlan Township ................................................................................................. 224
Valley Township ..................................................................................................... 226
Wallace Township .................................................................................................. 228
Warwick Township ................................................................................................. 230
West Bradford Township ........................................................................................ 232
West Brandywine Township ................................................................................... 234
West Caln Township ............................................................................................... 236
West Chester Borough ............................................................................................ 238
West Fallowfield Township .................................................................................... 240
West Goshen Township .......................................................................................... 242
West Grove Borough .............................................................................................. 244
West Marlborough Township ................................................................................. 246
West Nantmeal Township ....................................................................................... 248
West Nottingham Township ................................................................................... 250
West Pikeland Township ........................................................................................ 252
West Sadsbury Township ....................................................................................... 254
West Vincent Township .......................................................................................... 256
West Whiteland Township ...................................................................................... 258
Westtown Township ............................................................................................... 260
Willistown Township .............................................................................................. 262
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Atglen Borough
Background Information
The borough is 0.9 square miles in area. The 2010 Census counted 1,406 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
482 697 3 11 $929,230 0 0 $0
Utility Providers
Electric Natural Gas Water
PPL PECO Atglen Borough
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 7/7/2010
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 11/19/2001
Municipal Sewer
Municipal Water
Zoning Ordinance (Last Updated) 11/7/2011 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the plan.
Emergency Services Providers
Agency(ies)
ALS Lancaster Medic 06
BLS Christiana Fire Company (Lancaster County)
Fire Christiana Fire Company (Lancaster County)
Police Christiana Borough Police, Pennsylvania State Police – Avondale Barracks
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Risk Assessment
Atglen Borough considers their top hazards to be thunderstorms, flooding, winter storms, wind, and
drought in that order. Municipal specific risk information supplements the countywide risks as outlined
in the Risk Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Atglen Borough have received $19,835 in total payouts
from a total of two flood claims since 1978. There are three flood insurance policies currently in effect
within the borough. There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Borough wide Public Information Programs
Borough wide Emergency alerting systems
Borough wide Purchase portable warning signage and safety
cones
Fallowfield Road/Main St
& Steeleville Mill Rd
Install gates to be closed during flood
incidents and signage
Flood Prone Area
Green St by underpass Install storm drain outlets/outfall PennDOT Road
Green St and Valley Ave Install storm drain outlets/outfall PennDOT Road
Rt 41 & Rt 372 Install generator connection on traffic signal
Rt 41 & Rt 372 Install battery back up on traffic signal
Rt 41 & Rt 372 Purchase backup generator for traffic signal
Rt 41 & Rt 372 Install emergency vehicle detector/sensor
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Avondale Borough
Background Information
The township is 0.5 square miles in area. The 2010 Census counted 1,265 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
416 433 50 72 $5,571,150 21 21 $3,119,130
Utility Providers
Electric Natural Gas Water
PECO PECO Avondale Borough
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last
Updated) 5/27/2003 Environmental Preservation
Committee
Emergency Operations Plan
GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 12/17/1996
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 4/15/2003 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Southern Chester County EMS
BLS Avondale Fire Company
Fire Avondale Fire Company
Police Parkesburg Borough Police Department
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Risk Assessment
Avondale Borough considers their top natural hazards to be the same as the County’s listing. Municipal
specific risk information supplements the countywide risks as outlined in the Risk Assessment section of
the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Avondale Borough have received $1,736,385 in total
payouts from a total of 30 flood claims since 1978. There are 20 flood insurance policies currently in
effect within the borough. There are five repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Borough wide Public information programs
Borough wide Emergency alerting systems
200 First St – Building A Acquire/Elevate Structure Repetitive Loss Property
200 First St – Building B Acquire/Elevate Structure Repetitive Loss Property
220 E Second St Acquire/Elevate Structure Repetitive Loss Property
222 E Second St Acquire/Elevate Structure Repetitive Loss Property
311 Third St Acquire/Elevate Structure Repetitive Loss Property
107 Chatham St Acquire/Elevate Structure
400 New St Acquire/Elevate Structure
128 State St Property Protection
Indian Run Rd & W. State St Install warning signs/signals
Indian Run Rd & Borough
Line
Install warning signs/signals
First St and Morris Alley Install gates to be closed during
flood incidents and signage
First St and Chatham Street Install gates to be closed during
flood incidents and signage
Pennsylvania Ave & State St. Purchase emergency generator for
traffic light
Baltimore Pike & Gap
Newport Pike
Purchase emergency generator for
traffic light
Miller Dr. & Indian Run Rd Build emergency access road into
communalities
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Birmingham Township
Background Information
The township is 6.5 square miles in area. The 2010 Census counted 4,208 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,598 1,710 30 53 $7,539,100 5 5 $905,640
Utility Providers
Electric Natural Gas Water
PECO No Service Aqua America, Inc. Chester Water Authority
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 2/10/2002
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 2/24/2004
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 2/7/2011 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Chester County Hospital, Concordville Fire & Protective Association
BLS Concordville Fire & Protective Association, Good Fellowship Ambulance Club
Fire Concordville Fire & Protective Association, First West Chester Fire Company
Police Birmingham Township Police Department
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Risk Assessment
Birmingham Township considers their top three hazards to be flooding, winter storms, and hurricanes in
that order. Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Birmingham Township have received $73,806 in total
payouts from a total of nine flood claims since 1978. There are 12 flood insurance policies currently in
effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public Information Programs
Township wide Emergency alerting systems
Masters Way Build access road to Webb Rd Inaccessible during floods
Street Road (PA 926) bridge
over Brandywine Creek
Reengineer intersection Intersection easily floods
cutting of all traffic
Street Road (PA 926) at
Creek Rd
Install gates to be closed
during flood incidents and
signage
Other half in Pocopson Twp
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Caln Township
Planning currently in progress
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Charlestown Township
Background Information
The township is 12.6 square miles in area. The 2010 Census counted 5,671 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
2,010 2,401 8 12 $1,738,040 1 1 $92,060
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 2/4/2013
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 10/3/2011
Municipal Sewer Authority
Municipal Water Authority Zoning Ordinance (Last Updated) 11/7/2011 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Malvern Fire Company, West End Fire Company
BLS East Whiteland Fire Company, West End Fire Company
Fire East Whiteland Fire Company, Kimberton Fire Company
Police Pennsylvania State Police – Embreeville Barracks
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Risk Assessment
Charlestown Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Charlestown Township have received $19,980 in total
payouts from a total of four flood claims since 1978. There are 15 flood insurance policies currently in
effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Bukwalter Rd Construct Larger Culvert
All traffic signals in
township
Purchase enough generators to
power all stop lights within the
township
4030 Whitehorse Rd
Malvern, PA 19432
Purchase and install back-up
generator
Township EOC and
municipal building
Township wide Equip a trailer for mobile EOC
capabilities
Township wide Determine feasibility of developing
a regional EOC with neighboring
municipalities
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Coatesville City
Background Information
The city is 1.9 square miles in area. The 2010 Census counted 13,100 people within the municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
3,855 2,889 19 40 $3,468,380 18 18 $1,023,610
Utility Providers
Electric Natural Gas Water
PECO PECO PA American Water
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 12/23/2002
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 8/5/2002
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 6/27/2011 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93
BLS Coatesville City Fire Department
Fire Coatesville City Fire Department
Police Coatesville City Fire Police Department
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Risk Assessment
Coatesville City considers their top natural hazards to be the same as the County’s listing. Municipal
specific risk information supplements the countywide risks as outlined in the Risk Assessment section of
the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Coatesville City have received $74,147 in total payouts
from a total of 17 flood claims since 1978. There are 18 flood insurance policies currently in effect
within the city. There is one repetitive loss property, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
City wide Public information programs
City wide Emergency alerting systems
63 S. Fifth Ave Property Protection Repetitive Loss
1 City Hall Pl
Coatesville, PA 19320
Upgrade generator City Hall & EOC
134 Strode Ave
Coatesville, PA 19320
Install generator West End Fire Company
Citywide Pre-plan access roads throughout the
City
11th
Ave and railroad
underpass
Install gates to be closed during
flood incidents and signage
Extends into Caln
Township
Citywide Develop plan to deploy traffic light
generators
Gibbons Run Culvert Replace culvert Prone to flooding
Chester County
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Downingtown Borough
Background Information
The borough is 2.2 square miles in area. The 2010 Census counted 7,923 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
2,566 2,652 277 344 $51,750,880 69 78 $7,450,190
Utility Providers
Electric Natural Gas Water
PECO PECO Downingtown Water Authority
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last
Updated) 9/4/2013 Environmental Preservation
Committee
Emergency Operations Plan
GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 12/1/1999
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 7/18/2012 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Downingtown Fire Department
BLS Downingtown Fire Department
Fire Downingtown Fire Department
Police Downingtown Police Department
Chester County
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Risk Assessment
Downingtown Borough considers their top three hazards to be floods, sinkholes, and thunderstorms in
that order. Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Downingtown Borough have received $1,730,148 in
total payouts from a total of 233 flood claims since 1978. There are 228 flood insurance policies
currently in effect within the borough. There are 37 repetitive loss properties, and no severe repetitive
loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Borough wide Public Information Programs
Borough wide Emergency alerting systems
Borough wide Install battery backup for 13 traffic
signals
410 Acorn Ln Property Protection Non-residential, Repetitive Loss
Property
110 Brandywine Ave Acquire/Elevate Structure Repetitive Loss Property
112 Brandywine Ave Acquire/Elevate Structure Repetitive Loss Property
114 Brandywine Ave Acquire/Elevate Structure Repetitive Loss Property
119 Brandywine Ave Acquire/Elevate Structure Repetitive Loss Property
121 Brandywine Ave Acquire/Elevate Structure Repetitive Loss Property
123 Brandywine Ave Acquire/Elevate Structure Repetitive Loss Property
125 Brandywine Ave Acquire/Elevate Structure Repetitive Loss Property
127 Brandywine Ave Acquire/Elevate Structure Repetitive Loss Property
128 Brandywine Ave Acquire/Elevate Structure Repetitive Loss Property
132 Brandywine Ave Acquire/Elevate Structure Repetitive Loss Property
209 Brandywine Ave Acquire/Elevate Structure Repetitive Loss Property
118 Green St Acquire/Elevate Structure Repetitive Loss Property
120 Green St Acquire/Elevate Structure Repetitive Loss Property
124 Green St Acquire/Elevate Structure Repetitive Loss Property
126 Green St Acquire/Elevate Structure Repetitive Loss Property
128 Green St Acquire/Elevate Structure Repetitive Loss Property
113 Jefferson Ave Acquire/Elevate Structure Repetitive Loss Property
119 Jefferson Ave Acquire/Elevate Structure Repetitive Loss Property
121 Jefferson Ave Acquire/Elevate Structure Repetitive Loss Property
123 Jefferson Ave Acquire/Elevate Structure Repetitive Loss Property
125 Jefferson Ave Acquire/Elevate Structure Repetitive Loss Property
127 Jefferson Ave Acquire/Elevate Structure Repetitive Loss Property
155 Jefferson Ave Acquire/Elevate Structure Repetitive Loss Property
309 Jefferson Ave Acquire/Elevate Structure Repetitive Loss Property
311 Jefferson Ave Acquire/Elevate Structure Repetitive Loss Property
315 Jefferson Ave Acquire/Elevate Structure Repetitive Loss Property
317 Jefferson Ave Acquire/Elevate Structure Repetitive Loss Property
Chester County
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December, 2014 P a g e | 130
Location Mitigation Measure Comments
319 Jefferson Ave Acquire/Elevate Structure Repetitive Loss Property
34 W Lancaster Ave Acquire/Elevate Structure Repetitive Loss Property
309 Mary St Acquire/Elevate Structure Repetitive Loss Property
311 Mary St Acquire/Elevate Structure Repetitive Loss Property
313 Mary St Acquire/Elevate Structure Repetitive Loss Property
401 Mary St Acquire/Elevate Structure Repetitive Loss Property
337 Stuart Ave Acquire/Elevate Structure Repetitive Loss Property
21 Viaduct Ave Acquire/Elevate Structure Repetitive Loss Property
521 Whiteland Ave Acquire/Elevate Structure Repetitive Loss Property
Jefferson Ave Acquire/Elevate Structures 104 properties with buildings in
the 100 yr or 500 yr floodplain
Mary St Acquire/Elevate Structures 63 properties with buildings in
the 100 yr or 500 yr floodplain
Brandywine Ave Acquire/Elevate Structures 42 properties with buildings in
the 100 yr or 500 yr floodplain
Cherry St Acquire/Elevate Structures 31 properties with buildings in
the 100 yr or 500 yr floodplain
Viaduct Ave Acquire/Elevate Structures 29 properties with buildings in
the 100 yr or 500 yr floodplain
Roosevelt Ave Acquire/Elevate Structures 28 properties with buildings in
the 500 yr floodplain
Washington Ave Acquire/Elevate Structures 25 properties with buildings in
the 100 yr or 500 yr floodplain
Chester County
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Chester County
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East Bradford Township
Background Information
The township is 15.1 square miles in area. The 2010 Census counted 9,942 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
3,452 4,019 81 148 $12,505,880 4 4 $681,650
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 9/14/2004 Environmental Advisory Council
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Commission
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 11/13/2011
Municipal Operated Sewer
Municipal Water Authority Zoning Ordinance (Last Updated) 3/12/2013 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Chester County Hospital – Medic 91, Downingtown Fire Department
BLS Downingtown Fire Department, Good Fellowship Ambulance Club
Fire West Bradford Fire Company, West Chester Fire Department, Downingtown Fire Department
Police West Chester Borough Police Department, West Chester University Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 133
Risk Assessment
East Bradford Township considers their top hazards to be floods, hurricane, thunderstorms, and wind in
that order. Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within East Bradford Township have received $1,601,473 in
total payouts from a total of 191 flood claims since 1978. There are 29 flood insurance policies
currently in effect within the township. There are five repetitive loss properties, and eight severe
repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public Information Programs
Township wide Emergency alerting systems
402 Cottage Lane Acquisition/Elevation
406 Cottage Lane Acquisition/Elevation
414 Cottage Lane Acquisition/Elevation
418 Cottage Lane Acquisition/Elevation Severe Repetitive Loss
426 Cottage Lane Acquisition/Elevation Severe Repetitive Loss
502 River Bend Lane Acquisition/Elevation
522 River Bend Lane Acquisition/Elevation
526 River Bend Lane Acquisition/Elevation
530 River Bend Lane Acquisition/Elevation
550 River Bend Lane Acquisition/Elevation
558 River Bend Lane Acquisition/Elevation
690 North Creek Road Acquisition/Elevation Severe Repetitive Loss
1010 Valley Creek Road Property Protection
South Creek Road between
Cottage Ln and Withers Way
Install gates to be closed during
flood incidents and signage
Allerton Rd between North
Creek Rd and Lucky Hill Rd
Install gates to be closed during
flood incidents and signage
North Creek Rd between Jefferis
Bridge Rd and Hillsdale Rd
Install gates to be closed during
flood incidents and signage
Valley Creek Rd between
Harmony Hill Rd and Ravine Rd
Install gates to be closed during
flood incidents and signage
Downingtown Pike and Miles
Road
Install battery back-up and/or
generator hookup on traffic signal
Downingtown Pike and Bradford
Plaza
Install battery back-up and/or
generator hookup on traffic signal
South Bradford Ave and West
Nields Street
Install battery back-up and/or
generator hookup on traffic signal
N/A Acquire 4 wheel vehicle to support
response in limited access Harmony
Hill Natural Area
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 134
East Brandywine Township
Background Information
The township is 11.4 square miles in area. The 2010 Census counted 6,742 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
3,317 3,588 23 45 $2,802,240 4 17 $372,200
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc. Downingtown Municipal Water Authority
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC 2009 Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 9/16/2009
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 6/18/2014
Municipal Sewer Authority
Municipal Water Authority Zoning Ordinance (Last Updated) 7/16/2014 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 91, Downingtown Fire Department
BLS Downingtown Fire Department, Westwood Fire Company
Fire East Brandywine Fire Company
Police East Brandywine Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 135
Risk Assessment
East Brandywine Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within East Brandywine Township have received $35,320 in
total payouts from a total of twelve flood claims since 1978. There are 25 flood insurance policies
currently in effect within the township. There are no repetitive loss properties, and no severe repetitive
loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Rt. 322 & Corner Ketch Road Purchase back-up generator for
traffic signal and installing required
connections on lights
Rt. 322 &
Bondsville/Hopewell Roads
Purchase back-up generator for
traffic signal and installing required
connections on lights
Rt. 322 and Brandywine
Village Shopping Center
Purchase back-up generator for
traffic signal and installing required
connections on lights
East Brandywine Baptist
Church
999 Horseshoe Pike
Install generator connection Potential comfort
station/shelter
Hopewell United Methodist
Church, 852 Hopewell Road
Install generator connection Potential comfort
station/shelter
2065 Bondsville Road Increase size of culvert crossing -
private property causes roadway
flooding
Creek Road at Crawford Road Flood wall protecting homes along
Brandywine Creek from flooding
785 Creek Rd Acquire/Elevate Structure
775 Creek Rd Acquire/Elevate Structure
765 Creek Rd Acquire/Elevate Structure
755 Creek Rd Acquire/Elevate Structure
745 Creek Rd Acquire/Elevate Structure
1081 Creek Rd Property Protection Lyndell Country Store
1061 Creek Rd Property Protection Lyndell Grange Church
1051 Creek Rd Property Protection Located in Historic
District
200 block Zynn Rd Construct Larger Culvert
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 136
East Caln Township
Background Information
The township is 3.7 square miles in area. The 2010 Census counted 4,838 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,372 1,370 4 16 $25,890,490 2 5 $25,487,550
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc. Downingtown Municipal Water Authority
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 3/21/2012
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 1/15/2006
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 6/30/2014 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Downingtown Fire Department
BLS Downingtown Fire Department
Fire Downingtown Fire Department
Police Downingtown Borough Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 137
Risk Assessment
East Caln Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within East Caln Township have received $175,830 in total
payouts from a total of five flood claims since 1978. There are ten flood insurance policies currently in
effect within the township. There is one repetitive loss property, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
All Traffic signals within
the township
Purchase generator to be used during
prolonged power outages
25 Woodland Circle Acquisition/Elevation Repetitive Loss Property
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 138
East Coventry Township
Background Information
The township is 11.0 square miles in area. The 2010 Census counted 6,636 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
2,476 3,980 48 104 $6,083,590 43 84 $9,124,040
Utility Providers
Electric Natural Gas Water
PECO PECO PA American Water
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last
Updated) 4/10/2012 Environmental Preservation
Committee
Emergency Operations Plan GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 8/13/2012
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 8/13/2012 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Good Will Steam Fire Engine Company No. 1, West End Fire Company
BLS Good Will Steam Fire Engine Company No. 1, West End Fire Company
Fire Ridge Fire Company
Police East Coventry Township Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 139
Risk Assessment
East Coventry Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within East Coventry Township have received $591,153 in
total payouts from a total of 19 flood claims since 1978. There are 33 flood insurance policies currently
in effect within the township. There is one repetitive loss property, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
285 Linfield Rd Acquisition/Elevation Repetitive Loss Property
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 140
East Fallowfield Township
Background Information
The township is 15.7 square miles in area. The 2010 Census counted 7,449 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
3,145 4,138 23 36 $2,130,810 15 26 $1,554,600
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 12/8/1999
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance
Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 3/23/2010
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 3/23/2010 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital Medic 93
BLS Modena Fire Company, Westwood Fire Company
Fire Modena Fire Company, Westwood Fire Company
Police East Fallowfield Township Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 141
Risk Assessment
East Fallowfield Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within East Fallowfield Township have received $24,588 in
total payouts from a total of seven flood claims since 1978. There are 15 flood insurance policies
currently in effect within the township. There are no repetitive loss properties, and no severe repetitive
loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Intersection of Mortonville Rd
and Sawmill Rd
Improve drainage to reduce flooding
Mortonville Rd Improve drainage to reduce flooding
Timacula Rd Improve drainage to reduce flooding
Frog Hollow Rd Improve drainage to reduce flooding
475 Doe Run Rd
East Fallowfield, PA 19320
Install a backup generator Police Station
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 142
East Goshen Township
Background Information
The township is 10.2 square miles in area. The 2010 Census counted 18,026 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
2,672 6,014 85 114 $39,126,040 19 22 $22,097,840
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 6/21/2005
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 10/4/2011
Municipal Sewer Authority
Municipal Water Authority Zoning Ordinance (Last Updated) 9/25/2012 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Chester County Hospital – Medic 91, Malvern Fire Company
BLS Goshen Fire Company, Malvern Fire Company
Fire Goshen Fire Company, Malvern Fire Company
Police Westtown/East Goshen Regional Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 143
Risk Assessment
East Goshen Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within East Goshen Township have received $17,257 in total
payouts from a total of ten flood claims since 1978. There are 97 flood insurance policies currently in
effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 144
East Marlborough Township
Background Information
The township is 15.6 square miles in area. The 2010 Census counted 7,026 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
2,978 3,918 39 54 $8,453,740 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO PECO
Aqua America,
Inc.
Chester Water
Authority
Kennett Square
Borough
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last
Updated) 4/6/2011 Environmental Preservation
Committee
Emergency Operations Plan
GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 3/28/2000
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 5/7/2012 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Longwood Fire Company
BLS Longwood Fire Company
Fire Longwood Fire Company, Po-Mar-Lin Fire Company
Police East Marlborough Township Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 145
Risk Assessment
East Marlborough Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within East Marlborough Township have received $57,211 in
total payouts from a total of four flood claims since 1978. There are 21 flood insurance policies
currently in effect within the township. There are no repetitive loss properties, and no severe repetitive
loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
All traffic signals within
the Township
Install back-up batteries for short
term power outages
Intersection of Walnut Rd
and Longwood Rd
Placement of temporary road
barriers
To address flooding of
roadway
721 Unionville Road Purchase and install back-up
generator
Municipal Building
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 146
East Nantmeal Township
Background Information
The township is 16.4 square miles in area. The 2010 Census counted 1,803 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
946 1,687 20 35 $4,113,180 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO No Service No commercial service
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 9/2014
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 5/4/2006
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 9/9/2011 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital Medic 93, Uwchlan Ambulance Corps
BLS Uwchlan Ambulance Corps, Elverson EMS
Fire Glenmoore Fire Company, Twin Valley Fire Company
Police Pennsylvania State Police – Embreeville Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 147
Risk Assessment
East Nantmeal Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within East Nantmeal Township have received $15,336 in total
payouts from a total of two flood claims since 1978. There are five flood insurance policies currently in
effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 148
East Nottingham Township
Background Information
The township is 20.1 square miles in area. The 2010 Census counted 8,650 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
3,092 5,373 26 40 $2,732,070 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO PPL PECO UGI Central Penn Gas Chester Water Authority
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last
Updated) 11/19/1969 Environmental Preservation
Committee
Emergency Operations Plan
GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 12/11/2000
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 10/17/2011 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Southern Chester County EMS
BLS Union Fire Company No 1
Fire Union Fire Company No 1
Police Pennsylvania State Police – Avondale Barracks
Chester County
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December, 2014 P a g e | 149
Risk Assessment
East Nottingham Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within East Nottingham Township have received no payouts
from any flood claims since 1978. There are six flood insurance policies currently in effect within the
township. There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Chester County
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East Pikeland Township
Planning currently in progress
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
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Chester County
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East Vincent Township
Background Information
The township is 13.7 square miles in area. The 2010 Census counted 6,821 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
2,314 4,077 70 113 $8,981,770 6 10 $34,081,010
Utility Providers
Electric Natural Gas Water
PECO PECO PA American Water
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last
Updated) 4/10/2012 Environmental Preservation
Committee
Emergency Operations Plan
GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 5/19/2010
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 7/24/2011 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Friendship Fire Company
BLS Friendship Fire Company
Fire Kimberton Fire Company, Liberty Fire Company, Ridge Fire Company
Police East Vincent Township Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 153
Risk Assessment
East Vincent Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within East Vincent Township have received $338,113 in total
payouts from a total of 23 flood claims since 1978. There are 31 flood insurance policies currently in
effect within the township. There are two repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
1805 Old Schuylkill Rd Acquire/Elevate Structure Repetitive loss property
1831 Old Schuylkill Rd Acquire/Elevate Structure Repetitive loss property
Hill Church Rd & Stony
Run Rd
Installation of warning signs
Old Schuylkill Rd Install gates to be closed during flood
incidents and signage
French Creek Rd Installation of warning signs and stakes
Seven Stars Rd at Stony
Run Creek
Installation of warning signs
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 154
East Whiteland Township
Background Information
The township is 11.0 square miles in area. The 2010 Census counted 10,650 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
3,520 4,530 41 53 $46,295,030 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 4/14/2010
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 5/10/2007
Municipal Sewer Authority
Municipal Water Authority Zoning Ordinance (Last Updated) 6/13/2010 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Malvern Fire Company
BLS East Whiteland Fire Company, Malvern Fire Company
Fire East Whiteland Fire Company
Police East Whiteland Township Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 155
Risk Assessment
East Whiteland Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within East Whiteland Township have received $13,698 in
total payouts from a total of three flood claims since 1978. There are 18 flood insurance policies
currently in effect within the township. There are no repetitive loss properties, and no severe repetitive
loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Old Morehall Road Install gates to be closed during
flood incidents and signage
Church Road Install gates to be closed during
flood incidents and signage
Spring Rd Increase culvert size
Ravine Rd Strengthen Embankment
Hillbrook Circle Increase stormwater pipe size Small size compounds
flooding problems
Sewer pumping stations Purchase and install permanent
emergency generators
18 traffic signals within the
township
Purchase emergency generators
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 156
Easttown Township
Planning currently in progress
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 157
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Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
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Elk Township
Background Information
The township is 10.2 square miles in area. The 2010 Census counted 1.681 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
745 1,469 8 12 $1,084,150 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO No Service Private Wells
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 6/25/2012
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 12/6/2010
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 12/20/2012 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Southern Chester County EMS
BLS Union Fire Company
Fire Union Fire Company
Police Pennsylvania State Police – Avondale Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 159
Risk Assessment
Elk Township considers their top natural hazards to be the same as the County’s listing. Municipal
specific risk information supplements the countywide risks as outlined in the Risk Assessment section of
the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Elk Township have received no payouts from any flood
claims since 1978. There are two flood insurance policies currently in effect within the township. There
are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
952 Chesterville Rd
Lewisville, PA 19351
Install generator connection and
transfer switch
Township building/EOC
952 Chesterville Rd
Lewisville, PA 19351
Purchase backup generator Township building/EOC
Barren Rd North of
Chrome Rd
Install a 60” culvert To prevent roadway flooding
All township roads Ditching sides of roads to prevent
flooding
17 miles in length
Township wide Purchase road closed signs and
barriers and flashing lights
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 160
Elverson Borough
Background Information
The borough is 1.0 square miles in area. The 2010 Census counted 1,225 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
708 650 1 2 $53,130 0 0 $0
Utility Providers
Electric Natural Gas Water
PPL No Service Elverson Water Company
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 6/10/2014
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance
Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 5/26/1998
Municipal Sewer Committee
Municipal Water Authority Zoning Ordinance (Last Updated) 4/21/2009 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93
BLS Elverson EMS
Fire Twin Valley Fire Company
Police Pennsylvania State Police – Embreeville Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 161
Risk Assessment
Elverson Borough considers their top natural hazards to be the same as the County’s listing. Municipal
specific risk information supplements the countywide risks as outlined in the Risk Assessment section of
the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Elverson Borough have received no payouts from any
flood claims since 1978. There is one flood insurance policy currently in effect within the borough.
There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Borough wide Public information programs
Borough wide Emergency alerting systems
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 162
Franklin Township
Background Information
The township is 13.2 square miles in area. The 2010 Census counted 4.352 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,794 2,659 24 41 $2,461,752 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last
Updated) 2/15/2006
Environmental Preservation
Committee
Emergency Operations Plan GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission
Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 3/16/2011
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 3/1/2011 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Southern Chester County EMS
BLS Avondale Fire Company, West Grove Fire Company
Fire Avondale Fire Company, West Grove Fire Company
Police Pennsylvania State Police – Avondale Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 163
Risk Assessment
Franklin Township considers their top natural hazards to be the same as the County’s listing. Municipal
specific risk information supplements the countywide risks as outlined in the Risk Assessment section of
the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Franklin Township have received no payouts from two
flood claims that were submitted since 1978. There are six flood insurance policies currently in effect
within the township. There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Township wide Area wide Communication System AM radio station in progress
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 164
Highland Township
Background Information
The township is 17.2 square miles in area. The 2010 Census counted 1,272 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
705 1,524 13 25 $3,246,710 1 1 $267,790
Utility Providers
Electric Natural Gas Water
PECO PECO Private Wells
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last
Updated) 10/20/2001
Environmental Preservation
Committee
Emergency Operations Plan
GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 10/13/2009
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 10/13/2009 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93, Southern Chester County EMS
BLS Keystone Valley Fire Department, Parkesburg Fire Company
Fire Cochranville Fire Company, Keystone Valley Fire Department
Police Highland Township Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 165
Risk Assessment
Highland Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Highland Township have received no payouts from
flood claims since 1978. There are no flood insurance policies currently in effect within the township.
There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 166
Honey Brook Borough
Background Information
The township is 0.5 square miles in area. The 2010 Census counted 1,713 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
612 866 0 0 $0 0 0 $0
Utility Providers
Electric Natural Gas Water
PPL PECO Honey Brook Borough Water Authority
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last
Updated) 2/1/1993 Environmental Preservation
Committee
Emergency Operations Plan
GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission
Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 7/14/1995
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 11/18/2002 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93
BLS Honey Brook Fire Company
Fire Honey Brook Fire Company
Police Honey Brook Borough Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 167
Risk Assessment
Honey Brook Borough Township considers their top natural hazards to be the same as the County’s
listing, in addition the Borough considers hazardous materials related transportation incidents to be a
hazard to the borough. Municipal specific risk information supplements the countywide risks as
outlined in the Risk Assessment section of the plan.
Exposure to Flood Hazard
Honey Brook Borough is not a participating member of the National Flood Insurance Program.. There
are no flood insurance policies currently in effect within the township. There are no repetitive loss
properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Borough wide Public information programs
Borough wide Emergency alerting systems
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 168
Honey Brook Township
Background Information
The township is 25.4 square miles in area. The 2010 Census counted 7,647 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
2,297 5,850 44 87 $5,096,100 4 7 $425,090
Utility Providers
Electric Natural Gas Water
PPL PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 12/10/2008
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 7/14/2010
Municipal Sewer Authority*
Municipal Water Authority
Zoning Ordinance (Last Updated) 9/14/2011 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
*Member of the Northwestern Chester County Municipal Sewer Authority
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93
BLS Elverson EMS, Honey Brook Fire Company
Fire Honey Brook Fire Company
Police Pennsylvania State Police – Embreville Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 169
Risk Assessment
Honey Brook Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Honey Brook Township have received $20,000 in total
payouts from a total of two flood claims since 1978. There are six flood insurance policies currently in
effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Icedale Rd/Beaver Dam Rd
/Birdell Rd Intersection
Still assessing potential
mitigation project to resolve this
issue
Intersection prone to
flooding, cutting access off
a neighborhood
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 170
Kennett Square Borough
Background Information
The borough is 1.1 square miles in area. The 2010 Census counted 6,072 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,675 1,918 11 24 $2,195,010 12 16 $1,718,680
Utility Providers
Electric Natural Gas Water
PECO PECO Kennett Square Borough
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 1/7/2013
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Street Crew
Subdivision or Land Development Ordinance (Last Updated) 11/15/2010
Municipal Sewer
Municipal Water
Zoning Ordinance (Last Updated) 4/20/2009 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Longwood Fire Company
BLS Kennett Fire Company
Fire Kennett Fire Company
Police Kennett Square Borough Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 171
Risk Assessment
Kennett Square Borough considers their top three hazards to be flooding, snow, and wind in that order.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Kennett Square Borough have received $274,430 in
total payouts from a total of 12 flood claims since 1978. There are 13 flood insurance policies currently
in effect within the township. There is one repetitive loss property, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Borough wide Public Information Programs
Borough wide Emergency alerting systems
Cypress St to Cedar St
West of Union St
Improve/install drainage systems to
handle rain to reduce localized flooding
Entire length of E Birch St Improve culverts and inlet boxes to
better handle rain to reduced localized
flooding
Current boxes are all brick
650 W South Street
(Kennett Sewage plan)
Reengineer access road to sewage plant Plant does not get inundated
with flood water but access
road does.
Borough owned land in
Kennett Township
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 172
Kennett Township
Background Information
The township is 15.6 square miles in area. The 2010 Census counted 7,565 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
3,249 4,005 34 40 $4,885,600 12 16 $4,3784020
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc. Chester Water Authority
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 5/6/2013
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance In Progress Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 10/1/2006
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 5/2/2011 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Longwood Fire Company
BLS Kennett Fire Company, Longwood Fire Company
Fire Kennett Fire Company, Longwood Fire Company
Police Kennett Township Police Department, Pennsylvania State Police – Avondale Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 173
Risk Assessment
Kennett Township considers their top natural hazards to be the same as the County’s listing. Municipal
specific risk information supplements the countywide risks as outlined in the Risk Assessment section of
the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Kennett Township have received $291,423 in total
payouts from a total of 21 flood claims since 1978. There are 35 flood insurance policies currently in
effect within the township. There are three repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
611 Creek Road Acquisition/Elevation Repetitive loss property
903 Creek Road Acquisition/Elevation Repetitive loss property
909 Creek Road Acquisition/Elevation Repetitive loss property
All traffic signals within
the township
Purchase generators to run light
during a power outage
Flood prone intersections
within the township
Install gates to be closed during
flood incidents and signage
Flood prone bridges within
the township
Ongoing upkeep of the bridge to
ensure it is able to withstand the
force of flood waters
Flood prone bridges within
the township
Install warning signs to be utilized
during flood incidents
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 174
London Britain Township
Background Information
The township is 9.9 square miles in area. The 2010 Census counted 3,139 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,362 1,898 22 31 $2,215,730 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO No Service Private Wells
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last
Updated) 11/24/2009 Environmental Preservation
Committee
Emergency Operations Plan
GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 8/1/2000
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 4/4/2011 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Southern Chester County EMS
BLS Avondale Fire Company, West Grove Fire Company
Fire Avondale Fire Company, West Grove Fire Company
Police Pennsylvania State Police – Avondale Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 175
Risk Assessment
London Britain Township considers their top hazards to be flooding, winter storms, thunderstorms, and
drought in that order. Municipal specific risk information supplements the countywide risks as outlined
in the Risk Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within London Britain Township have received $2,697 in total
payouts from a total of three flood claims since 1978. There are nine flood insurance policies currently
in effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Flint Hill Rd & Mercer
Mill Rd
Install gates to be closed during
flood incidents and signage
Mercer Mill Rd & N. Creek
Rd
Install gates to be closed during
flood incidents and signage
Good Hope & London
Tract Rd/Broad Run Rd
Install gates to be closed during
flood incidents and signage
London Tract Rd & New
Peltier Rd
Install gates to be closed during
flood incidents and signage
Yeatmans Station Rd Install gates to be closed during
flood incidents and signage
Flint Hill Rd Install a snow fence during snow
season to prevent snow drifting
Two Sections of the road
Indtiantown Rd Install a snow fence during snow
season to prevent snow drifting
South Bank Rd Install a snow fence during snow
season to prevent snow drifting
Strickersville Rd Install a snow fence during snow
season to prevent snow drifting
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
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London Grove Township
Background Information
The township is 17.2 square miles in area. The 2010 Census counted 7,475 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
3,004 4,290 41 68 $7,034,130 25 33 $4,978,350
Utility Providers
Electric Natural Gas Water
PECO PECO London Grove Township Municipal Authority
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 3/24/2011
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 1/7/2013
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 4/15/2013 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Southern Chester County EMS
BLS Avondale Fire Company, West Grove Fire Company
Fire Avondale Fire Company, West Grove Fire Company
Police Pennsylvania State Police – Avondale Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 177
Risk Assessment
London Grove Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within London Grove Township have received $14,723 in total
payouts from a total of four flood claims since 1978. There are 18 flood insurance policies currently in
effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems/ public
notification system
Garden Station & Clay
Creek Rd
Install gates to be closed during
flood incidents and signage
Lake Rd in the area of
Baltimore Pike
Install gates to be closed during
flood incidents and signage
Lake Rd in the area of
Baltimore Pike
Reconfigure stream channel
Rt. 41 & Rt. 1 Purchase generator for the traffic
signal
Rt. 41 & Hepburn Rd Purchase generator for the traffic
signal
Rt. 41 & Baltimore Pike Purchase generator for the traffic
signal
372 Rose Hill Rd Purchase and install a backup
generator
Public Works Facility
Sullivan Rd & Clay Creek
Rd
Reconfigure stream channel
Indian Run Rd Widen bridge and bridge approaches
Clay Creek Rd south of
Garden Station
Install gates to be closed during
flood incidents and signage
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 178
Londonderry Township
Planning currently in progress
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 179
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Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
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Lower Oxford Township
Background Information
The township is 18.5 square miles in area. The 2010 Census counted 5,200 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,538 2,864 29 34 $4,014,760 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO Central Penn Gas Company Chester Water Authority
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan
Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 6/25/2012
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 2/12/2003
Municipal Sewer Authority
Municipal Water Authority Zoning Ordinance (Last Updated) 2/12/2003 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Southern Chester County EMS
BLS Union Fire Company
Fire Union Fire Company
Police Pennsylvania State Police – Avondale Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 181
Risk Assessment
Lower Oxford Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Lower Oxford Township have received $0 in total
payouts from a total of 0 flood claims since 1978. There are three flood insurance policies currently in
effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 182
Malvern Borough
Background Information
The borough is 1.2 square miles in area. The 2010 Census counted 2,998 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
960 1,101 0 0 $0 5 0 $0
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last
Updated) 12/15/2009
Environmental Preservation
Committee
Emergency Operations Plan
GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 3/21/2006
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 6/19/2012 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Malvern Fire Company
BLS Malvern Fire Company
Fire Malvern Fire Company
Police Malvern Borough Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 183
Risk Assessment
Malvern Borough considers their top natural hazards to be the same as the County’s listing. Municipal
specific risk information supplements the countywide risks as outlined in the Risk Assessment section of
the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Malvern Borough have received $5,550 in total payouts
from a total of one flood claim since 1978. There are seven flood insurance policies currently in effect
within the borough. There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Borough wide Public information programs
Borough wide Emergency alerting systems
313 S Warren Ave Increase culvert size
10 through 142 W First Ave Elevation/Acquisition
2 through 10 Remington Ln Elevation/Acquisition
193 through 323 Paoli Pike Elevation/Acquisition
135 Powelton Ave Elevation/Acquisition
145 Powelton Ave Elevation/Acquisition
217 through 545 S. Warren Ave Elevation/Acquisition
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 184
Modena Borough
Background Information
The borough is 0.3 square miles in area. The 2010 Census counted 535 people within the municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
248 214 27 45 $2,3102040 5 6 $236,630
Utility Providers
Electric Natural Gas Water
PECO PECO Private Wells
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 6/7/2010
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 11/2/2009
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 11/2/2009 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93
BLS Modena Fire Company
Fire Modena Fire Company
Police South Coatesville Borough Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 185
Risk Assessment
Modena Borough considers their top hazards to be flooding, thunderstorms, wind storms, winter storms,
then drought in that order. Municipal specific risk information supplements the countywide risks as
outlined in the Risk Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Modena Borough have received no payouts from any
flood claims since 1978. There are 14 flood insurance policies currently in effect within the township.
There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Borough wide Public information programs
Borough wide Emergency alerting systems
Union Street Improve/strengthen stormwater drainage
6 N Brandywine Ave Elevation/Acquisition
8 N Brandywine Ave Elevation/Acquisition
10 N Brandywine Ave Elevation/Acquisition
12 N Brandywine Ave Elevation/Acquisition
14 N Brandywine Ave Elevation/Acquisition
16 N Brandywine Ave Elevation/Acquisition
18 N Brandywine Ave Elevation/Acquisition
20 N Brandywine Ave Elevation/Acquisition
24 N Brandywine Ave Elevation/Acquisition
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 186
New Garden Township
Background Information
The township is 16.2 square miles in area. The 2010 Census counted 11,984 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
3,842 5,820 42 63 $11,093,910 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO PECO Chester Water Authority
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 4/11/2005
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 7/15/2008
Municipal Sewer Authority
Municipal Water Authority Zoning Ordinance (Last Updated) 7/13/2010 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Southern Chester County EMS
BLS Avondale Fire Company
Fire Avondale Fire Company
Police New Garden Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 187
Risk Assessment
New Garden Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within New Garden Township have received $2,819 in total
payouts from a total of five flood claims since 1978. There are twenty seven flood insurance policies
currently in effect within the township. There are no repetitive loss properties, and no severe repetitive
loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Cedar Springs Rd @ Pemberton
Rd
Construct larger culvert
Egypt Run Road Construct larger culvert
Newark Rd & Baltimore Pike Purchase portable generator for
traffic signal
Chambers Rd & Baltimore Pike Purchase portable generator for
traffic signal
Scarlett Rd & Baltimore Pike Purchase portable generator for
traffic signal
Two generators
Scarlett Rd south of Baltimore
Pike
Purchase portable generator for
traffic signal
Newark Rd & Rt 41 Purchase portable generator for
traffic signal
Penn Green Rd & Rt 41 Purchase portable generator for
traffic signal
Southwood Rd and Rt 7 Purchase portable generator for
traffic signal
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 188
New London Township
Background Information
The township is 11.9 square miles in area. The 2010 Census counted 5,631 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
2,087 3,029 14 17 $1,789,080 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO No Service Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 2/2/2012
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew - Contracted
Subdivision or Land Development Ordinance (Last Updated) 7/1/2010
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 7/1/2010 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Southern Chester County EMS
BLS West Grove Fire Company
Fire West Grove Fire Company
Police Pennsylvania State Police – Avondale Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 189
Risk Assessment
New London Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within New London Township have received no payouts from
flood claims since 1978. There are six flood insurance policies currently in effect within the township.
There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
902 State Rd Purchase and install backup
generator with transfer switch
Township Office/Regional
EOC
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 190
Newlin Township
Background Information
The township is 12.0 square miles in area. The 2010 Census counted 1,285 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
737 1,291 51 89 $4,054,900 43 66 $4,305.420
Utility Providers
Electric Natural Gas Water
PECO No Service No commercial water service
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan
Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 4/6/2011
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 3/11/2013
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 3/11/2013 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital Medic 93, Longwood Fire Company
BLS Good Fellowship Ambulance Club, Longwood Fire Company, Modena Fire Company
Fire Modena Fire Company, Po-Mar-Lin Fire Company, West Bradford Fire Company
Police Pennsylvania State Police – Embreeville & Avondale Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 191
Risk Assessment
Newlin Township considers their top natural hazards to be the same as the County’s listing. Municipal
specific risk information supplements the countywide risks as outlined in the Risk Assessment section of
the plan. In addition to those natural hazards, the East Penn Railroad traverses the township, which
occasionally transports hazardous materials. There are also two pipelines that run through the township.
Exposure to Flood Hazard
According to the NFIP records, residents within Newlin Township have received $2,819 in total payouts
from a total of nine flood claims since 1978. There are 15 flood insurance policies currently in effect
within the township. There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Brandywine Creek Rd side
of Harveys Bridge
Re-engineer bridge approach
Brandywine Creek Rd and
Harveys Bridge Rd
Install gates to be closed
during flood incidents and
signage
Intersection prone to flooding
Rt 162 between Stargazers
Rd and Cannery Rd
Clear trees from above the
right of way
Section of road has high banks
and trees are prone to fall onto
utility lines and roadway
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 192
North Coventry Township
Background Information
The township is 13.6 square miles in area. The 2010 Census counted 7,866 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
3,400 4,748 178 291 $16,007,260 9 26 $2,942,150
Utility Providers
Electric Natural Gas Water
PECO PECO North Coventry Water Authority Superior Water Company
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan
Engineer on Staff or Contacted
Comprehensive Plan (Last
Updated) 4/10/2012 Environmental Preservation
Committee
Emergency Operations Plan GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 3/10/2009
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 4/1/2012 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Goodwill Fire Company of Pottstown
BLS Goodwill Fire Company of Pottstown
Fire Norco Fire Company
Police North Coventry Township Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 193
Risk Assessment
North Coventry Township considers their top natural hazards to be the same as the County’s listing.
Exposure to Flood Hazard
According to the NFIP records, residents within North Coventry Township have received $1,942,602 in
total payouts from a total of 205 flood claims since 1978. There are 114 flood insurance policies
currently in effect within the township. There is one repetitive loss property and no severe repetitive
loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
400 Highland Road Elevation/Acquisition Repetitive Loss Property
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 194
Oxford Borough
Planning currently in progress
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 195
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Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
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Parkesburg Borough
Background Information
The borough is 1.2 square miles in area. The 2010 Census counted 3,593 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,431 1,577 8 23 $1,922,410 1 2 $37,570
Utility Providers
Electric Natural Gas Water
PECO PECO PA American Water
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan
Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 5/18/2009
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 5/19/2014
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 12/19/2011 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93
BLS Keystone Valley Fire Department
Fire Keystone Valley Fire Department
Police Parkesburg Borough Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 197
Risk Assessment
Parkesburg Borough considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Parkesburg Borough have received no payouts from
flood claims since 1978. There are three flood insurance policies currently in effect within the borough.
There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Borough wide Public information programs
Borough wide Emergency alerting systems
Rt 10 and Rt 372 Purchase generator for traffic lights
329 W 1st Ave
Parkesburg, PA 19365
Purchase and install backup
generator
Keystone Valley Fire
Department
Bridge St Amtrak Bridge Re-engineer and re-build the bridge
to be able to support traffic
Borough wide Purchase debris removal equipment
(chainsaws, front end loaders, etc)
Borough wide Provide training to public works
crew on operation of debris removal
equipment
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 198
Penn Township
Background Information
The township is 9.6 square miles in area. The 2010 Census counted 5,364 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,858 3,231 11 16 $1,889,610 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO PECO Chester Water Authority
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan
Engineer on Staff or Contacted
Comprehensive Plan (Last
Updated) 2/6/2013 Environmental Preservation
Committee
Emergency Operations Plan
GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 4/7/2010
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 3/7/2012 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Southern Chester County EMS
BLS West Grove Fire Company
Fire West Grove Fire Company
Police Pennsylvania State Police – Avondale Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 199
Risk Assessment
Penn Township considers their top natural hazards to be the same as the County’s listing.
Exposure to Flood Hazard
According to the NFIP records, residents within Penn Township have received no total payouts from any
flood claims since 1978. There are seven flood insurance policies currently in effect within the
township. There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Valley Road Engineering study to determine best
method to reduce flooding of
roadway
Ewing Road Install larger box culvert State-owned one lane bridge
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 200
Pennsbury Township
Background Information
The township is 10.0 square miles in area. The 2010 Census counted 3,604 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,468 1,817 23 31 $3,918,510 6 7 $3,187,790
Utility Providers
Electric Natural Gas Water
PECO No Service Chester Water Authority
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 9/18/2006
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 10/7/2002
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 12/10/2012 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Longwood Fire Company
BLS Longwood Fire Company
Fire Longwood Fire Company
Police Pennsylvania State Police – Avondale Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 201
Risk Assessment
Pennsbury Township considers their top three hazards to be hurricanes, tornados, and rail incidents in
that order. Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Pennsbury Township have received $185,578 in total
payouts from a total of nine flood claims since 1978. There are 14 flood insurance policies currently in
effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public Information Programs
Township wide Emergency alerting systems
US Rt 1 in the area of the
Brandywine creek
Install warning signals for times
when road is closed due to flooding
US Rt 1 at the railroad
tracks by Fairville Rd
Install warning signals at unguarded
railroad crossing
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 202
Phoenixville Borough
Background Information
The borough is 3.8 square miles in area. The 2010 Census counted 16,440 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
5,739 5,268 56 91 $15,198,259 12 14 $10,438,800
Utility Providers
Electric Natural Gas Water
PECO PECO Phoenixville Borough
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 7/20/2011
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Assessment Review Board
NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 12/20/2007
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 12/10/2013 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Trappe Fire Company (Montgomery County)
BLS Trappe Fire Company (Montgomery County)
Fire Phoenixville Hook & Ladder Fire Company
Police Phoenixville Borough Police Department
Chester County
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December, 2014 P a g e | 203
Risk Assessment
Phoenixville Borough considers their top three hazards to be flooding, wind, and fire in that order.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Phoenixville Borough have received 962,470 in total
payouts from a total of 46 flood claims since 1978. There are 38 flood insurance policies currently in
effect within the borough. There is one repetitive loss property and one severe repetitive loss property.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Borough wide Public Information Programs
Borough wide Emergency alerting systems
Borough Water Plant Flood Wall If plant is inundated with water, entire
borough will lose water service
Borough wide Increase coordination with
Blue March Dam (ACE)
Need better notification/warning of
water releases from dam
All traffic lights
within the borough
Small generators to power stop
lights
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 204
Pocopson Township
Background Information
The township is 8.4 square miles in area. The 2010 Census counted 4,582 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,455 1,826 42 87 $7,068,540 7 11 $2,533,020
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 6/23/2014
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 5/9/2011
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 12/3/2012 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Longwood Fire Company
BLS Longwood Fire Company
Fire Longwood Fire Company, Po-Mar-Lin Fire Company
Police Pennsylvania State Police – Avondale Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 205
Risk Assessment
Pocopson Township considers their top natural hazards to be the same as the County’s listing. Municipal
specific risk information supplements the countywide risks as outlined in the Risk Assessment section of
the plan
Exposure to Flood Hazard
According to the NFIP records, residents within Pocopson Township have received $2,117,604 in total
payouts from a total of 129 flood claims since 1978. There are 25 flood insurance policies currently in
effect within the township. There are seven repetitive loss properties, and two severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public Information Programs
Township wide Emergency alerting systems Severe Repetitive Loss
Property
5 Cabin Club Lane Elevation/Acquisition Severe Repetitive Loss
Property
15 Cabin Club Lane Elevation/Acquisition Severe Repetitive Loss
Property
2 Cabin Club Lane Elevation/Acquisition Repetitive Loss Property
8 Cabin Club Lane Elevation/Acquisition Repetitive Loss Property
9 Cabin Club Lane Elevation/Acquisition Repetitive Loss Property
11 Cabin Club Lane Elevation/Acquisition Repetitive Loss Property
14 Cabin Club Lane Elevation/Acquisition Repetitive Loss Property
814 Denton Hollow Rd Elevation/Acquisition Repetitive Loss Property
1332 Lenape Rd Property Protection Repetitive Loss Property
Lenape Forge
Street Road (PA 926) at
Pocopson Rd
Install gates to be closed during
flood incidents and signage
Other half in Birmingham
Township
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 206
Sadsbury Township
Background Information
The township is 6.2 square miles in area. The 2010 Census counted 3,570 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,589 2,383 41 64 $6,745,230 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO PECO PA American Water
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 8/5/2014
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 5/6/2008
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 11/16/2010 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93
BLS Keystone Fire Company
Fire Keystone Fire Company, Sadsburyville Fire Company
Police Sadsbury Township Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 207
Risk Assessment
Sadsbury Township considers their top hazard to be flooding. Municipal specific risk information
supplements the countywide risks as outlined in the Risk Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Sadsbury Township have received $9,943 in total
payouts from a total of three flood claims since 1978. There are ten flood insurance policies currently in
effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Greenbelt Drive Increase the size of the opening
under the bridge
Debris gets caught under
the bridge causing
additional flooding
Sections of Old Mill Road Install gates to be closed during
flood incidents and signage
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 208
Schuylkill Township
Background Information
The township is 8.9 square miles in area. The 2010 Census counted 8,516 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
3,154 4,368 30 74 $20,721,490 7 18 $6,237,800
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan
Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 10/3/2007
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 12/7/2011
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 9/5/2012 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS West End Fire Company
BLS West End Fire Company
Fire Valley Forge Fire Company
Police Schuylkill Township Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 209
Risk Assessment
Schuylkill Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Schuylkill Township have received $336,395 in total
payouts from a total of 44 flood claims since 1978. There are 21 flood insurance policies currently in
effect within the township. There are one repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
493 State Creek Rd Acquisition/Elevation Repetitive Loss Property
Rt 23 & Whitehorse Rd Obtain generator for traffic signal
Rt 23 & Pawling Rd Obtain generator for traffic signal
Rt 23 & County Club Rd Obtain generator for traffic signal
County Club Rd and Valley
Park Rd
Obtain generator for traffic signal
S Whitehorse Road Construct Larger Culvert PennDOT Road
Creek Rd Bridge Protect Structure w/ Barrier
East Phillip Dr Construct Larger Culvert Possible development of
neighboring property
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 210
South Coatesville Borough
Background Information
The borough is 1.7 square miles in area. The 2010 Census counted 1,303 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
722 510 5 24 $2,254,570 2 9 $1,197,300
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 5/18/2010
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 10/14/2003
Municipal Sewer Authority
Municipal Water Authority Zoning Ordinance (Last Updated) 9/21/2006 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93
BLS Modena Fire Company
Fire Modena Fire Company
Police South Coatesville Borough Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 211
Risk Assessment
South Coatesville Borough considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within South Coatesville Borough have received no from any
flood claims since 1978. There are no flood insurance policies currently in effect within the borough.
There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Borough wide Public information programs
Borough wide Emergency alerting systems
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 212
South Coventry Township
Background Information
The township is 7.5 square miles in area. The 2010 Census counted 2,604 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,184 1,835 15 17 $2,079,510 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO No Service Private Wells Township supplied water
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 5/7/2012
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 12/3/2007
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 6/4/2012 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Goodwill Pottstown EMS
BLS Goodwill Pottstown EMS
Fire Ridge Fire Company
Police Pennsylvania State Police – Embreeville Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 213
Risk Assessment
South Coventry Township considers their top hazards to be the same as the County’s listing with an
additional hazard of tornados. Municipal specific risk information supplements the countywide risks as
outlined in the Risk Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within south Coventry Township have received $11,945 in
total payouts from a total of two flood claims since 1978. There are three flood insurance policies
currently in effect within the township. There are no repetitive loss properties, and no severe repetitive
loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Bealor Rd Construct Larger Culvert
190 Ridgeview Dr
Purchase and install a backup
generator
Woodridge Sewer Plant
Schoolhouse Road &
Porter’s Mill Rd
Install flood water collection boxes
and piping
Direct water under
Schoolhouse Rd instead of
over
Countryville Rd Install warning signs for bridges that
flood
Two bridges
Young Rd Install warning signs for bridge that
flood
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 214
Spring City Borough
Background Information
The borough is 0.8 square miles in area. The 2010 Census counted 3,323 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,163 1,334 23 35 $8,445,720 17 31 $6,480,670
Utility Providers
Electric Natural Gas Water
PECO PECO PA American Water
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code UCC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 9/2/2003
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 12/1/1995
Municipal Sewer Committee
Municipal Water Authority Zoning Ordinance (Last Updated) 1/2/1996 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS West End Fire Company
BLS West End Fire Company
Fire Liberty Fire Company
Police Spring City Borough Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 215
Risk Assessment
Spring City Borough considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Spring City Borough have received $97,719 in total
payouts from a total of eleven flood claims since 1978. There are 15 flood insurance policies currently
in effect within the borough. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Borough wide Public information programs
Borough wide Emergency alerting systems
North Main St & East Bridge St Purchase generator for traffic signal
North Main St & East Bridge St Purchase generator for sewer pumping
station
1 Riverside Dr Property Protection
1 S Main St Property Protection
10 Bridge St Property Protection
20 E Bridge St Property Protection
31 E Bridge St Property Protection
55 E Bridge St Property Protection
73 E Bridge St Property Protection
75 E Bridge St Property Protection
80 E Bridge St Property Protection
85 E Bridge St Property Protection
90 E Bridge St Property Protection
290 Water St Property Protection
291 Water St Property Protection
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 216
Thornbury Township
Background Information
The township is 3.9 square miles in area. The 2010 Census counted 3,017 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,083 1,115 16 17 $2,157,220 3 4 $4,726,690
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc. Chester Water Authority
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 4/20/2010
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 9/7/1999
Municipal Sewer Authority
Municipal Water Authority Zoning Ordinance (Last Updated) 7/15/2009 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Chester County Hospital Medic 91
BLS Good Fellowship Ambulance, Concordville Fire Department (Delaware County)
Fire West Chester Fire Department
Police Westtown/East Goshen Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 217
Risk Assessment
Thornbury Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Thornbury Township have received $53,817 in total
payouts from a total of eight flood claims since 1978. There are 13 flood insurance policies currently in
effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
8 Township Drive Obtain generator EOC/Township Office
Rt 202 and Rt 926 Obtain generator for traffic signal
Rt 202 and Green Tree Dr Obtain generator for traffic signal
Rt 926 and Westtown-Thorton Rd Obtain generator for traffic signal
Rt 926 and New St Obtain generator for traffic signal
Rt 926 and S. Westtown Rd Obtain generator for traffic signal
Rt 926 and Creek Rd Install gates to be closed during
flood incidents and signage
Rt 926 and Westtown-Thorton Rd Install gates to be closed during
flood incidents and signage
Westtown-Thorton Rd south of
Railroad Bridge
Install gates to be closed during
flood incidents and signage
Westtown-Thorton Rd north of
Railroad Bridge
Install gates to be closed during
flood incidents and signage
Rt 926 and S. Westtown Rd Install gates to be closed during
flood incidents and signage
Rt 926 from Rt 202 to Cheyney Rd Assessment of flood prone areas
along roadway
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 218
Tredyffrin Township
Planning currently in progress
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 219
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Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 220
Upper Oxford Township
Planning currently in progress
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 221
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Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 222
Upper Uwchlan Township
Background Information
The township is 11.6 square miles in area. The 2010 Census counted 11,227 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
4,023 4,290 42 59 $6,917,420 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan
Engineer on Staff or Contacted
Comprehensive Plan (Last
Updated) 4/21/2014 Environmental Preservation
Committee
Emergency Operations Plan
GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 7/19/2010
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 11/19/2012 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93, Uwchlan Ambulance Corps
BLS Dowingtown Fire Department, Uwchlan Ambulance Corps
Fire
East Brandywine Fire Company, Glenmoore Fire Company, Lionville Fire
Company, Ludwigs Corner Fire Company
Police Upper Uwchlan Township Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 223
Risk Assessment
Upper Uwchlan Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Upper Uwchlan Township have received $137,101 in
total payouts from a total of seven flood claims since 1978. There are 24 flood insurance policies
currently in effect within the township. There are two repetitive loss properties, and no severe repetitive
loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Township wide Tree trimming and/or
selective removal
Fellowship Rd at Red Bone Rd. Raise roadway
Krause Rd Stormwater culvert and basin
re-sizing
Greenridge Rd Stormwater culvert and basin
re-sizing
2 Kiloran Wynd Acquisition/Elevation Repetitive Loss Property
80 Saint Andrews Ln Acquisition/Elevation Repetitive Loss Property
Font Rd Protect Structure w/ Barrier
St. Andrews Lane Protect Structure w/ Barrier
Krauser Rd Protect Structure w/ Barrier
Dorothy Ln Protect Structure w/ Barrier
Moore Rd & Turnstone Way Protect Structure w/ Barrier
Lyndell Rd Protect Structure w/ Barrier
Larkins Bridge Protect Structure w/ Barrier Located in a Historic District
Windsor Schoolhouse Protect Structure w/ Barrier Located in a Historic District
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 224
Uwchlan Township
Background Information
The township is 10.4 square miles in area. The 2010 Census counted 18,088 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
6,161 6,203 8 10 $1,065,710 2 2 $212,420
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 8/9/2010
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 4/8/2013
Municipal Sewer Authority
Municipal Water Authority Zoning Ordinance (Last Updated) 10/22/2009 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Uwchlan Ambulance Corps
BLS Uwchlan Ambulance Corps
Fire Lionville Fire Company
Police Uwchlan Township Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 225
Risk Assessment
Uwchlan Township considers their top natural hazards to be the same as the County’s listing. Municipal
specific risk information supplements the countywide risks as outlined in the Risk Assessment section of
the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Uwchlan Township have received $15,555 in total
payouts from a total of four flood claims since 1978. There are 29 flood insurance policies currently in
effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Andover Dr Construct Larger Culvert
Rutgers Dr Construct Larger Culvert
Crump Rd Construct Larger Culvert
Baker Dr Construct Larger Culvert
Windsor Cir Construct Larger Culvert
N. Milford Rd Construct Larger Culvert
Whitford Rd Construct Larger Culvert
Newcomen Rd Construct Larger Culvert
Peck Rd Construct Larger Culvert
Brookwood Dr & Good Dr Install gates to be closed during
flood incidents and signage
Rt. 100 & Worthington Rd. Purchase and install generator for
traffic light
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 226
Valley Township
Background Information
The township is 6.0 square miles in area. The 2010 Census counted 6,794 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
3,565 3,034 67 97 $8,442,310 4 5 $472,120
Utility Providers
Electric Natural Gas Water
PECO PECO Valley Township PA American Water
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 5/6/2003
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 4/16/2013
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 4/16/2013 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93
BLS Westwood Fire Company
Fire Westwood Fire Company
Police Valley Township Police Department
Chester County
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Risk Assessment
Valley Township considers their top natural hazards to be the same as the County’s listing. Municipal
specific risk information supplements the countywide risks as outlined in the Risk Assessment section of
the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Valley Township have received $127,212 in total
payouts from a total of 21 flood claims since 1978. There are 24 flood insurance policies currently in
effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public Information Programs
Township wide Emergency alerting systems
Township wide Conduct citizen preparedness
programs
200 Block South Mount Airy
Rd
Construct upstream basin
S. Mt. Airy Rd Install gates to be closed during flood
incidents and signage
890 W. Lincoln Hwy
Coatesville, PA 19320
Purchase and install emergency
generator
Municipal Complex
Rock Run Dam Install a dam failure alarm
Rock Creek Restore old dam
Sucker Run Drainage Plan Improve basins to hold water longer
Airport Rd & Lincoln Highway Purchase a backup generator for the
traffic signal
Purchase and install emergency
generator
Highlands Pump
station
1 Earhart Dr
Coatesville PA, 19320
Purchase and install emergency
generator
Chester County
Airport
South Mount Airy Rd Build an emergency access off the Rt
30 bypass
Main St Replace culvert
Grove Ave. Bridge Engineer and fix erosion to the bridge
and exposed sewer main
Hemlock Ave. Bridge Engineer and fix erosion which is
undermining the bridge
Park Ave. Bridge Engineer and fix erosion to the bridge
Chester County
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Wallace Township
Planning currently in progress
Chester County
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Chester County
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Warwick Township
Planning currently in progress
Chester County
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Chester County
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West Bradford Township
Background Information
The township is 18.6 square miles in area. The 2010 Census counted 12,376 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
4,636 6,322 28 47 $5,050,550 141 214 $78,798,290
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 6/2009
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Commission
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 8/9/2011
Municipal Operated Sewer
Municipal Water Authority Zoning Ordinance (Last Updated) 5/14/2013 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93, Chester County Hospital – Medic 91, Downingtown Fire Department
BLS Downingtown Fire Department, Good Fellowship Ambulance Club, Modena Fire Company
Fire West Bradford Fire Company
Police Pennsylvania State Police – Embreeville Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 233
Risk Assessment
West Bradford Township considers their top hazards to be flooding, thunderstorms and wind. Municipal
specific risk information supplements the countywide risks as outlined in the Risk Assessment section of
the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within West Bradford Township have received $18,940 in total
payouts from a total of nine flood claims since 1978. There are 12 flood insurance policies currently in
effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public Information Programs
Township wide Emergency alerting systems
Downingtown Pike between
Harmony Hill Rd and Skelp Level Rd
Install gates to be closed
during flood incidents and
signage
Would require 4 gates
Downingtown Pike between Hall Rd
and Harmony Hill Rd
Reinforce bank and roadway River erosion.
PennDOT working on
permits 10/2013
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 234
West Brandywine Township
Background Information
The township is 13.4 square miles in area. The 2010 Census counted 7,394 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
2,720 4,434 17 27 $1,853,070 2 2 $222,700
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 10/20/2005
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 12/1/2009
Municipal Sewer Authority
Municipal Water Authority Zoning Ordinance (Last Updated) 1/2/2011 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93
BLS Westwood Fire Company
Fire East Brandywine Fire Company, Wagontown Fire Company
Police West Brandywine Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 235
Risk Assessment
West Brandywine Township considers their top hazards to be floods, thunderstorms, wind, and winter
storms. Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within West Brandywine Township have received $5,030 in
total payouts from a total of two flood claims since 1978. There are nine flood insurance policies
currently in effect within the township. There are no repetitive loss properties, and no severe repetitive
loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public Information Programs
Township wide Emergency alerting systems
Township wide Assess potential sites that have
fertilizer storage
Manor Rd between
Reeceville Rd and
Dogwood Dell
Re-engineer road or improve
signage
Poor visibility causing
hazard for drivers and
emergency vehicles
Manor Rd and Horseshoe
Pike
Assess potential impact from new
Aqua water storage tank
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 236
West Caln Township
Background Information
The township is 21.8 square miles in area. The 2010 Census counted 9,014 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
3,412 7,503 38 90 $8,724,640 10 13 $876,890
Utility Providers
Electric Natural Gas Water
PECO PECO PA American Water
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan
Engineer on Staff or Contacted
Comprehensive Plan (Last
Updated) 4/25/1998 Environmental Preservation
Committee
Emergency Operations Plan
GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 9/13/2010
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 2/27/2006 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93
BLS Westwood Fire Company
Fire Matins Coroner Fire Company, Wagontown Fire Company
Police West Caln Township Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 237
Risk Assessment
West Caln Township considers their top natural hazards to be the same as the County’s listing.
Exposure to Flood Hazard
According to the NFIP records, residents within West Caln Township have received $1,873 in total
payouts from a total of two flood claims since 1978. There are eight flood insurance policies currently
in effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 238
West Chester Borough
Background Information
The borough is 1.8 square miles in area. The 2010 Census counted 18,461 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
4,091 3,239 96 128 $19,644,060 14 15 $5,720,480
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last
Updated) 11/28/2000
Environmental Preservation
Committee
Emergency Operations Plan GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 12/18/13
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 1/16/2013 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Chester County Hospital Medic 91
BLS Good Fellowship Ambulance Club
Fire West Chester Fire Department
Police West Chester Borough Police Department, West Chester University Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 239
Risk Assessment
West Chester Borough considers their top three hazards to be flooding, winter storms, and wind in that
order. Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within West Chester Borough have received $3,499,566 in
total payouts from a total of 103 flood claims since 1978. There are 71 flood insurance policies
currently in effect within the borough. There are eight repetitive loss properties, and is one severe
repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Borough wide Public Information Programs
Borough wide Emergency alerting systems
Southeast Quadrant Construct larger culverts/pipes
Barnard Street Railroad Bridge Reduce roadway flooding
Goodwill Fire Company Obtain back-up generator
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 240
West Fallowfield Township
Background Information
The township is 18.1 square miles in area. The 2010 Census counted 2,566 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,070 2,702 12 25 $1,266,920 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO No Service No commercial water service
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 2/18/1993
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 7/6/1989
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 1/24/2000 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Southern Chester County EMS
BLS Christiana Fire Company (Lancaster County)
Fire Cochranville Fire Company
Police West Fallowfield Township Police
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 241
Risk Assessment
West Fallowfield Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within West Fallowfield Township have received $367 in total
payouts from a total of one flood claims since 1978. There are four flood insurance policies currently in
effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public Information Programs
Township wide Emergency alerting systems
Rt 41 and Rt 10 Generator for traffic light
Rt 41 and Highland Rd Generator for traffic light
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 242
West Goshen Township
Background Information
The township is 12.0 square miles in area. The 2010 Census counted 21,866 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
7,061 8,873 165 211 $120,481,560 8 11 $11,321,560
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 9/1/2004
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 7/13/2005
Municipal Sewer Authority
Municipal Water Authority Zoning Ordinance (Last Updated) 11/14/2012 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Chester County Hospital Medic 91
BLS Good Fellowship Ambulance Club, Goshen Fire Company
Fire Goshen Fire Company, West Chester Fire Department
Police West Goshen Police Department, West Chester University Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 243
Risk Assessment
West Goshen Township considers their top three hazards to be flood, wind and thunderstorms in that
order. Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within West Goshen Township have received $245,209 in total
payouts from 26 flood claims since 1978. There are 68 flood insurance policies currently in effect
within the township. There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public Information Programs
Township wide Emergency alerting systems
103 Oak Lane Improve Culvert
East Chestnut and
Montgomery
Install gates to be closed during flood
incidents and signage
Will require 3 gates
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 244
West Grove Borough
Background Information
The borough is 0.6 square miles in area. The 2010 Census counted 2,854 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
893 1,060 0 0 $0 1 0 $0
Utility Providers
Electric Natural Gas Water
PECO PECO Borough of West Grove
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 2/4/2003
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 12/2/2009
Municipal Sewer Authority
Municipal Water Authority Zoning Ordinance (Last Updated) 7/7/2010 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Southern Chester County EMS
BLS West Grove Fire Company
Fire West Grove Fire Company
Police West Grove Borough Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 245
Risk Assessment
West Grove Borough considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within West Grove Borough have never submitted any flood
insurance claims since 1978. There are no flood insurance policies currently in effect within the
borough. There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Borough wide Public information programs
Borough wide Emergency alerting systems
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 246
West Marlborough Township
Background Information
The township is 17.1 square miles in area. The 2010 Census counted 814 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
415 1,035 24 41 $7,327,300 3 4 $2,549,920
Utility Providers
Electric Natural Gas Water
PECO No Service Private Wells
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last
Updated) 1/24/2006 Environmental Preservation
Committee
Emergency Operations Plan
GIS Capabilities on Staff or
Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management
Ordinance Municipal Road Crew
Subdivision or Land Development
Ordinance (Last Updated) 10/9/1990
Municipal Sewer Authority
Municipal Water Authority
Zoning Ordinance (Last Updated) 7/30/2012 Municipal Zoning Board These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93, Southern Chester County EMS
BLS Avondale Fire Company, Modena Fire Company
Fire Avondale Fire Company, Modena Fire Company, Po-Mar-Lin Fire Company
Police Pennsylvania State Police – Avondale Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 247
Risk Assessment
West Marlborough Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within West Marlborough Township have received $918 in
total payouts from a total of one flood claim since 1978. There are three flood insurance policies
currently in effect within the township. There are no repetitive loss properties, and no severe repetitive
loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 248
West Nantmeal Township
Background Information
The township is 13.5 square miles in area. The 2010 Census counted 2,170 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
980 2,058 14 28 $3,274,710 1 1 $163,640
Utility Providers
Electric Natural Gas Water
PPL No Service Private Wells
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 9/10/2007
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 11/11/2013
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 10/10/2011 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Brandywine Hospital – Medic 93
BLS Honey Brook Fire Company, Elverson EMS
Fire Glenmoore Fire Company, Twin Valley Fire Company
Police Pennsylvania State Police – Embreeville Barracks
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 249
Risk Assessment
West Nantmeal Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within West Nantmeal Township have received $2,204 in total
payouts from a total of three flood claims since 1978. There are seven flood insurance policies currently
in effect within the township. There are no repetitive loss properties, and no severe repetitive loss
properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Rt 401 in the area of
Ironstone Lane
Increase size of drainage basin/culvert
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 250
West Nottingham Township
Background Information
The township is 13.9 square miles in area. The 2010 Census counted 2,722 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
989 2,214 39 131 $3,611,780 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO No Service No commercial service
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan
Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 4/3/2006
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 8/1/2012
Municipal Sewer Authority
Municipal Water Authority Zoning Ordinance (Last Updated) 3/26/2013 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Southern Chester County EMS
BLS Union Fire Company
Fire Union Fire Company
Police West Nottingham Township Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 251
Risk Assessment
West Nottingham Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within West Nottingham Township have received no payouts
from flood claims since 1978. There are seven flood insurance policies currently in effect within the
township. There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Fremont Rd between Willow Rd
and King Pen Rd
Install gates to be closed during flood
incidents and signage
Park Road between Veteran’s
Drive and Sand Hill Rd
Install gates to be closed during flood
incidents and signage
Rt 272 and Herr Drive Generator connection for traffic signal
Rt 272 and Herr Drive Back-up generator for traffic signal
225 Lees Bridge Rd Elevation/Acquisition
227 Lees Bridge Rd Elevation/Acquisition
245 Park Rd Elevation/Acquisition
247 Park Rd Elevation/Acquisition
249 Park Rd Elevation/Acquisition
250 Park Rd Elevation/Acquisition
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 252
West Pikeland Township
Background Information
The township is 10.0 square miles in area. The 2010 Census counted 4,024 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,639 2,243 53 89 $13,023,170 8 8 $6,507,370
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc. Private Wells
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 12/6/2010
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 4/21/2014
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 3/19/2012 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Uwchlan Ambulance Corps
BLS Uwchlan Ambulance Corps
Fire Kimberton Fire Company, Lionville Fire Company
Police West Pikeland Township Police Department
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 253
Risk Assessment
West Pikeland Township considers their top hazards to be flooding, thunderstorms, wind, winter storms,
drought in that order. Municipal specific risk information supplements the countywide risks as outlined
in the Risk Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within West Pikeland Township have received no payouts
from flood claims since 1978. There are 29 flood insurance policies currently in effect within the
township. There are no repetitive loss properties, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public information programs
Township wide Emergency alerting systems
Horseshoetrail Rd Rebuild bridge and road
Various township and state roads Vegetation trimming
Chester County
Multi-Jurisdictional Hazard Mitigation Plan Municipal Assessments
December, 2014 P a g e | 254
West Sadsbury Township
Background Information
The township is 10.7 square miles in area. The 2010 Census counted 2,444 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
1,027 2,492 53 87 $5,855,680 0 0 $0
Utility Providers
Electric Natural Gas Water
PECO PPL No Service PA American Water
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 10/11/1994
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 11/13/2007
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 4/12/2011 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Lancaster County EMS, Brandywine Hospital Medic 93
BLS Keystone Valley Fire Department, Christiana Fire Company (Lancaster County)
Fire Keystone Valley Fire Department
Police West Sadsbury Police Department
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Risk Assessment
West Sadsbury Township considers their top natural hazards to be the same as the County’s listing.
Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within West Sadsbury Township have received $42,871 in
total payouts from a total of seven flood claims since 1978. There are two flood insurance policies
currently in effect within the township. There are no repetitive loss properties, and no severe repetitive
loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public Information Programs
Township wide Emergency alerting systems
4119 West Lincoln Hwy
Parkesburg, PA 19365
Install back-up generator West Sadsbury Police
Station
6400 N. Moscow Rd
Parkesburg, PA 19365
Install back-up generator West Sadsbury
Township Building
Rt 10 and Rt 30 Generator connection for traffic signal
Rt 10 and Commons Drive Generator connection for traffic signal
Rt 30 and Commons Drive Generator connection for traffic signal
Rt 10 and Rt 30 Back-up generator for traffic signal
Rt 10 and Commons Drive Back-up generator for traffic signal
Rt 30 and Commons Drive Back-up generator for traffic signal
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West Vincent Township
Planning currently in progress
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West Whiteland Township
Background Information
The township is 13.0 square miles in area. The 2010 Census counted 18,274 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
6,209 6,245 239 388 $170,936,900 24 26 $65,669,630
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted Comprehensive Plan (Last Updated) 6/1/1996
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 2/23/2011
Municipal Sewer Authority Municipal Water Authority Zoning Ordinance (Last Updated) 2/27/2013 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Chester County Hospital Medic 91, Uwchlan Ambulance Corps
BLS East Whiteland Fire Company, Good Fellowship Ambulance Club. West Whiteland Fire Company
Fire West Whiteland Fire Company
Police West Whiteland Township Police Department
Chester County
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Risk Assessment
West Whiteland Township considers their top three hazards to be floods, winter storms, and hurricane in
that order. Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within West Whiteland Township have received $738,976 in
total payouts from a total of 66 flood claims since 1978. There are 122 flood insurance policies
currently in effect within the township. There are six repetitive loss properties, and four severe
repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public Information Programs
Township wide Emergency alerting systems
113 N. Locust Lane Elevation/Acquisition Severe Repetitive Loss
Property
115 N. Locust Lane Elevation/Acquisition Severe Repetitive Loss
Property
116 N. Locust Lane Elevation/Acquisition
117 N. Locust Lane Elevation/Acquisition
118 N. Locust Lane Elevation/Acquisition Severe Repetitive Loss
Property
117 Valley Road Elevation/Acquisition
118 Valley Road Elevation/Acquisition
119 Valley Road Elevation/Acquisition
120 Valley Road Elevation/Acquisition
510 Winding Way Elevation/Acquisition
512 Winding Way Elevation/Acquisition
513 Winding Way Elevation/Acquisition
Valley Creek Remove silt/clean the creek bed
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Westtown Township
Background Information
The township is 8.8 square miles in area. The 2010 Census counted 10,827 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
3,509 4,171 26 27 $26,821,440 46 52 $35,555,558
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 7/2/2001
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 8/21/1995
Township Managed Sewer
Municipal Water Authority Zoning Ordinance (Last Updated) 5/21/2012 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Chester County Hospital – Medic 91
BLS Good Fellowship Ambulance Club, Goshen Fire Company
Fire Goshen Fire Company, West Chester Fire Department
Police Westtown East Goshen Regional Police Department
Chester County
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Risk Assessment
Westtown Township considers their top three hazards to be flooding, winter storms, and wild fires in
that order. Municipal specific risk information supplements the countywide risks as outlined in the Risk
Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Westtown Township have received $9,275 in total
payouts from a total of five flood claims since 1978. There are 29 flood insurance policies currently in
effect within the township. There is one repetitive loss property, and no severe repetitive loss properties
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public Information Programs
Township wide Emergency alerting systems
Oakboure Road at SEPTA Tracks Construct Larger Culvert
Culvert under South New Street Construct Larger Culvert
E Street Rd at Chester Creek Install gates to be closed
during flood incidents and
signage
Will require 2 gates
Township Wide Conduct wild land
management study
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Willistown Township
Background Information
The township is 18.2 square miles in area. The 2010 Census counted 10,497 people within the
municipality.
Buildings in the 1% (100 year) and 0.2% (500 year) chance floodplain
Total 1% Annual flood chance 0.2% Annual flood chance
Parcel
Count
Building
Count
Parcel
Count
Building
Count
Structure
Value
Parcel
Count
Building
Count
Structure
Value
4,417 5,560 107 142 $28,761,830 12 13 $3,234,880
Utility Providers
Electric Natural Gas Water
PECO PECO Aqua America, Inc.
Capabilities
Planning and Regulatory Capabilities Administrative and Technical Capabilities
Building Code IBC Emergency Management Coordinator
Capital Improvement Plan Engineer on Staff or Contacted
Comprehensive Plan (Last Updated) 4/14/2011
Environmental Preservation Committee
Emergency Operations Plan GIS Capabilities on Staff or Contracted
Floodplain Ordinance Historical Preservation Committee
NFIP Participant Municipal Planning Commission
Stormwater Management Ordinance Municipal Road Crew
Subdivision or Land Development Ordinance (Last Updated) 11/20/2011
Municipal Owned Sewer
Municipal Water Authority Zoning Ordinance (Last Updated) 9/12/2011 Municipal Zoning Board
These capabilities are in addition to the countywide capabilities outlined in the capability section of the
plan.
Emergency Services Providers
Agency(ies)
ALS Malvern Fire Company
BLS Goshen Fire Company, Malvern Fire Company, Paoli Fire Company
Fire Goshen Fire Company, Malvern Fire Company, Newtown Square Fire Company, Paoli Fire Company
Police Willistown Township Police Department
Chester County
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Risk Assessment
Willistown Township considers their top three hazards to be flooding, hurricanes, winter storms, and
high winds in that order. Municipal specific risk information supplements the countywide risks as
outlined in the Risk Assessment section of the plan.
Exposure to Flood Hazard
According to the NFIP records, residents within Willistown Township have received $17,203 in total
payouts from eight flood claims since 1978. There are 55 flood insurance policies currently in effect
within the township. There is one repetitive loss property, and no severe repetitive loss properties.
Potential Hazard Mitigation Actions
Location Mitigation Measure Comments
Township wide Public Information
Programs
Township wide Emergency alerting systems
1 Eisenhower Dr Elevation/Acquisition Repetitive Loss Property
116 Davis Rd Elevation/Acquisition Structure in 500 yr flood, portion
of property in floodway
Behind Malvern Fire Company Increase drainage basin size Flood water impacting main
sewer pumping station
Family Life Basin Increase drainage basin size Flood water impacting main
sewer pumping station
Rustmont Homeowners
Association
Increase drainage basin size Flood water impacting main
sewer pumping station
Paoli Pike west of Rustin Ln
and Devon Rd
Increase size of drainage
pipe crossing under road
Hillview Rd between Fox Chase
and Bar Rd
Increase Culvert Size
Whitehorse Rd between Rabbit
Run Rd and Grubbs Mill Rd
Install gates to be closed
during flood incidents and
signage
Jaffery Rd over Crum Creek Install gates to be closed
during flood incidents and
signage
Whitehorse Rd between Davis
Rd and Fox Chase Rd
Strengthen Bridge/Re-
engineer bridge approaches
Whitehorse Rd between Rabbit
Run Rd and Grubbs Mill Rd
Strengthen Bridge/Re-
engineer bridge approaches
Jaffery Rd over Crum Creek Strengthen Bridge/Re-
engineer bridge approaches
Chester County
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