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Green City, Clean WatersImplementing Philadelphia’s Combined Sewer Overflow Long‐term Control Plan:The First Five Years
www.phillywatersheds.org/ltcpu
2011 CONSENT ORDER & AGREEMENT ‐ PADEP
Consent Order & Agreement– Pollutant Mass Approach– Stream/Wetland restoration removed– $200M additional funds– 25 yr program– $1.2Billion (present value)– 34% 43.5% ‘Greening’– Approximately 12 ‘Deliverables’
June 1, 2011 June 1, 203625‐year Program
$1.67 billion
$345 million
Green Stormwater Infrastructure
Adaptive Management
Wet Weather Treatment Plant Upgrades
GREEN CITY, CLEAN WATERS
$420 million
Implementation and Adaptive Management Plan: 2011‐2016
Implementation and Adaptive Management Plan
A strategy for the first years of Implementation
Delivery: December 1, 2011
Metric: All
Adaptive Management
Capital Projects Planning
Policy and Streamlining
Operations and Maintenance
Program Monitoring
Public Outreach
Natural Environment Monitoring
Tidal
Tributary
Groundwater
Rainfall
Sewer System Monitoring
Sewer System Flows
CSO Discharge
Model Outputs
Green Infrastructure Performance
Soil and Vegetation Underground Infrastructure
Comprehensive Monitoring Plan
Delivery: December 1, 2012
Metric: Greened Acres
Monitoring, Modeling and Inspections
Increase wet weather treatment capacity to over
1.4 billion gallons per day
Delivery: June 1, 2013
Metric: Overflow Reduction
Facility Concept Plans for Plant Expansion
50 MGD •Increase in secondary treatment capacity
60 MGD •Increase secondary treatment capacity
215 MGD •Increase wet weather capacity using secondary bypass
Tookany/Tacony‐Frankford Cobbs Creek Delaware River Schuylkill River
Water Quality ModelingDelivery: 2013‐2015
Metric: Progress Evaluation Tool
Assess the program and evaluate alternative implementation options
Bacteria
Dissolved Oxygen
Green Infrastructure Maintenance Manual
Delivery: June 1, 2014
Metric: Greened Acres
Defining maintenance activities, frequency and efficiencies for long‐term success of each type of
green stormwater infrastructure
Maintenance and Monitoring Program
3% 3% 4%4%
7%
36%
43%
Erosion Control
Mulching/topdressing
Design/InstallationEnhancement
Oversight
Minor structuralrepairs
Cleaning
Vegetation care
Inspection:•Visual/photographic•Record condition of vegetative and structural features•Measure sediment and water levels
Maintenance:•Trash and sediment removal•Weeding, pruning, etc.•New product testing•Structural repairs•Erosion control•Reseeding / Watering
Reporting:•Labor effort and materials required to maintain each site
Creating Standards and Protocols:•Required tools and Crew Size•Frequency of visits•Responsible party
TOTAL GREENED ACRE METRIC
5-year target = 744 greened acres
25-year target = 9,564 greened acres
Metric Units Year 0 Year 5 Year 10 Year 15 Year 20 Year 25
Total Greened Acres
Greened Acres 0 744 2,148 3,812 6,424 9,564
• Public: innovative Green Programs to invest in green stormwater infrastructure
• Private: enforce strong stormwater regulations on development and create stormwater billing structure that rewards good practices
• Public Works: Standardizing green infrastructure for any city project
9,564+ IMPERVIOUS ACRES CONVERTED TO “GREENED ACRES”
Private Lands• Industrial/Commercial/Institutional• Homes• Parking• Alleys, Driveways and Walkways
Public Lands• Streets• Schools• Public Facilities• Open Spaces
Springside School “Water Wall” and Rain Garden
Saylor Grove Stormwater Wetland
Friends Center Green Roof
EIGHT GREEN PROGRAMS
DEMONSTRATION PHASE:Initial focus on Green Streets and Open Space
Columbus Square Stormwater Planters
Cliveden Park
Saylor Grove
GREEN PUBLIC OPEN SPACES
Cliveden ParkEast Mount Airy
Liberty Lands ParkNorthern Liberties
GREEN PUBLIC FACILITIES Herron PlaygroundPennsport
• $30M PennVest loan
• 5 phases between 2009 and 2012
• 93 Sites ‐ over 200 Blocks
• 6 Greened Acres are completed
• 44 GA designed awaiting construction
• 40 GA in design
• Construction costs typically range from $200k to >$1M
PennVest (SRF) Low Interest Loan
• Collaboration between:– Mayor’s Office of Transportation &Utilities– Philadelphia Water Dept– Streets Dept
• Revise and define City review process and policies• Aligning Capital Programs – PWD and Streets• Standardizes green stormwater infrastructure when:
– Water and sewer lines are replaced (approx. 20 miles/year)
– Streets are re‐surfaced (eventually 38 % of impervious cover)
GREEN STREETS DESIGN MANUAL
NEW INITIATIVES ‐ First Five Years
• PWD Facilities• Green Campus
Initiatives• Green Schools and
Schoolyards• Greening of Publicly
owned Parking Facilities
• Vacant Lands• Green Homes
www.pennconnects.upenn.edu/find_a_project/by_category/landscape/shoemaker_green_images.php
After
GREEN SCHOOLS
Before
Before After
Greenfield ElementaryCenter City
Wissahickon CharterEast Falls
GREEN 2015: Collaborative approach to Implementation
PWD Opportunities:•Provides support for early projects• 10 pilot sites will meet Greened Acre goal
Community Opportunities:•Additional Green Space for residents
• 202,000 Philadelphia residents do not have a public green space within 1/2 mile (10‐minute walk) of their home
•Capital improvements to Schoolyards and Playgrounds
PARKS & RECREATION / SCHOOL DISTRICT OF PHILADELPHIA / TRUST FOR PUBLIC LANDS
GREEN PUBLIC PARKING LOTS
Eadom Street Parking Lot
East Falls Parking Lot
Public Parking Lot OwnerPotential Greened Acres
(# of sites)Redevelopment Authority 13.1 acres (19 sites)
City of Philadelphia 12.2 acres (20 sites)
Beach St. Corp. 11.5 acres (1 site)
Conrail 8.2 acres (2 sites)
Kaplan at Tacony 1.7 acres (1 site)
Concept Tools Project Identification and Analysis
Design and Construction
Opportunities
• Maximizing Green Acres in clustered areas 50+ GA at a time
• Alternatives analysis for integrated implementation
• Potential leveraging of limited funding
• Innovative collaboration
Stormwater Management Enhancement Districts
American Street CorridorWin‐Win‐Win (Community, Businesses, PWD)
• Centralized stormwater management
• Removes unnecessary pavement
• Collaborative Design
• Up to 46 new greened acres
• Corridor Revitalization
• Build out could double employment
opportunities
Public Outreach and Participation
Green City, Clean Waters Advisory Committee
Low Impact Design Challenge
Green City, Clean Waters Documentary Video Series GSI Interactive Tours,
Podcasts & Maps
Ribbon‐cuttings and project specific events
Fairmount Waterworks Interpretive Center
Green Tours
Green City, Clean WatersWebsitewww.phillywatersheds.org
Social Media: Facebook
The Flower Show
Bar
ryLe
wis
COBBS CREEK GREEN ES PILOT PROJECTGREEN HOMES:Partnership with Rebuild Together Philadelphia
PHILADELPHIA STORMWATER REGULATIONSImpacts New Development & Re‐development with earth disturbance exceeding 15,000 square feet:
•Water Quality•Channel •Flood Control
Meets the definition of a greened acre and manage the first inch of stormwater.
Opportunity to leverage private development.
Since enacting the 2006 regulations: •PWD has approved 436 Stormwater Management Plans• 57% (248) of these projects are located in the CSO area
PARCEL‐BASED STORMWATER BILLING: A financial incentives for better stormwater management
Existing Charge = $ 400New Charge = $ 2,500
Gross Area = 600,000Impervious Area = 500,000
• Shift from a meter‐based charge for stormwater to a parcel‐based stormwater charge• Credit system available for managing stormwater• Top 500 impacted parcels in the combined sewered area make up 12.3% of total impervious area
• Rewards Urban Development
Gross Area = 24,000Impervious Area = 24,000
Existing Charge = $ 4,700New Charge = $ 120
25 year Greened Acre GoalTop 500 parcels
CITY‐WIDE PLANNING INITIATIVES
Front Street, Norris Ave, Frankford Ave and Palmer Street
CASE STUDY: THE BIG GREEN BLOCK
ALIGNING RESOURCES AND CREATING PARTNERSHIPS
BEYOND THE BIG GREEN BLOCK
• Connections to neighborhood amenities
• Columbia Avenue corridor to Penn Treaty Park
• Waterfront connection• Integration of local art• Promotes awareness
Photo credit: NKCDC
www.phillywatersheds.org
GREEN CITY, CLEAN WATERS
Marc Cammarata, P.E. Director, PWD Office of Watersheds