Technologies for addressing Environmental Challenges dedicated to Environmental Protection and Restoration

Technologies for addressing Environmental Challenges

dedicated to Environmental Protection and Restoration


Freda Porter, Ph.D., President and CEOPorter Scientific

The protection of water resources is vital in today’s environment. A number of environmental issues are presented along with the latest technologies including 1) corrosion control coatings and processes, industrial water recovery, and monitoring solutions; 2) EPA Brownfields properties and remediation technologies; 3) Leaky landfills and groundwater monitoring; and 4) UST removal and remediation, where EPA guidelines’ function is to reduce leaking USTs that contaminate water supplies. Risk-based modeling of natural bioattenuation for groundwater contamination along with monitoring is suggested for measuring the extent of contamination. The mathematical underpinning for estimating the rate of natural bioattenuation is discussed.

Outline

Company Overview

Environmental Projects


Mathematical Modeling of Groundwater Contamination

Corporate HeadquartersPorter Plaza

719 Old Main Road Pembroke, NC 28372

910-521-0549

dedicated to Environmental Protection and Restoration

Porter Scientific Incorporated (PSI) is an American Indian woman owned small business with an established track record of providing environmental consulting services, information technology and facility support services to a variety of agencies including the Department of Defense, the Department of Transportation and the Environmental Protection Agency as well as municipalities and commercial clients.

PSI specializes in providing environmental solutions caused by wastewater, storm water, and HAZMAT pollution by delivering cradle-to-grave solutions to our clients.

Through experience, modern technologies and equipment, and customer satisfaction, the PSI team has created an outstanding track record of service to its client base and to the community.

6

● Staff of 21 industry-standard trained and certified personnel● Established in 1997, Corporate Office: Pembroke, NC● Approximately 21,000 ft2 of office and warehouse space● Approved MWBE/SDBE provider of Environmental and IT

Services by the NC DOT, SC DOT, Charlotte, Raleigh, Durham, RDU AA, Wachovia, Progress Energy, and NC HUB

● ISO 9001:2000 certification pending● 2007 UIDA American Indian Business of the Year Award 2008 UNCP Business Visions Business Person of the Year

Company Overview

Core Competencies

Environmental Services Divisiono Environmental Protection and Restorationo Technical and Environmental Consulting Services

Professional Services Division o Water and Sewer Construction Managemento Education, Outreach and Workforce Development Trainingo Facility Support Serviceso Grant Writing

Information Technology Divisiono GIS Mapping of Infrastructureo Database Management

Certifications

Water Pollution Control System Operator Certification – LA 22755 Septage Management Firm – NCS 00987 GIS Technician Licensed Asbestos Inspector – BI-00335 Lead Inspector/Risk Assessor Secret Security Clearance (Facility & Personnel) Hazardous Material Transport (DOT Registration No. 052305 550 047N, EPA Id.

No. NC0991302636) NCBA approved to provide Environmental Site Assessments, Due Diligence

Training & Environmental Consulting (affiliate member) NCDOT Mentor Protégé Program with Mulkey Engineering and Consultants Stormwater Management – BMP & Inspections Wastewater Treatment Plant Operation – Grade IV

Professional Society Memberships

The Society of American Military Engineers (SAME)

American Society of Civil Engineers (ASCE)

North Carolina Technology Association (NCTA)

Association for Women in Mathematics (AWM)

American Council for Engineering Companies (ACEC)

American WaterWorks Association (AWWA)

Environmental Site Assessments

• Phase I Environmental Site Assessments (ASTM E 1527-05)• Asbestos Assessment, Abatement & Demolition• Mold Assessment & Remediation • Lead Inspections/Risk Assessments• Phase II Environmental Site Assessments with B&C• Real Estate Transaction Screens (ASTM-1528)

New Century Bank SouthBB&T

Lumbee Guaranty BankNative Angels Health Care

First BankK A Richardson & Co

Lumbee Tribe of North Carolina

What is a Brownfields Site?

“Real property, the expansion, redevelopment,or reuse of which may be complicated by the presence or potential presence of a hazardous substance, pollutant, or contaminant.” *

*As defined in 101(39) of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980, as amended (CERCLA, or Superfund)

EPA Brownfields Training Program

Course Contact Hours

HAZWOPER (Hazardous Waste & Emergency Response)

40

OSHA General Industry Standards & Safety

10

Heavy Equipment Operation & Safety

10

AHERA Asbestos Worker 32

Lead Worker – EPA 16

DOT Handling & Shipping of Hazardous Materials

8

Microbial Remediation Worker

16

Wastewater Physical/Chemical – Grade 1

24

OJT (On the Job Training) 40

TOTAL 196

EPA Brownfields Assessment Program

Town of Pembroke EPA Brownfields Assessment Grant

City of Durham EPA Brownfields Assessment Grant

Hoke County EPA Brownfields Assessment Grant

Robeson County EPA Brownfields Assessment Grants

Town of Pembroke EPA Brownfields Sites

Petroleum product builds up in Lift station

Town of Pembroke EPA Brownfields Sites

Sheff’s Seafood Parking LotPetroleum product

in storm drains – existing monitoring wells on site

Robeson County EPA Brownfields Sites

Carolina Mills 26Lumberton

Carolina Mills 27Lumberton


Johnson Cotton BuildingLumberton

Old Mueller SteamBuilding, St Pauls

Transformer SiteRed Springs

Former People’s Gas & OilSite, Red Springs


Burned PlantMaxton

Maxton Oil & FertilizerMaxton

Textile Plant St. Pauls

Tobacco Warehouse Fairmont

City of Durham EPA Brownfields Sites

Former Green Oil SiteDurham – Phase II completedSurficial Soil contamination that exceeded

the RSLs – appears to be localized at 2 sample locations – 7 and 3 at residential and industrial. Benzene was detected in groundwater TMW 8

12 DCA was detected in TMW 4Groundwater contamination was next doorMetals in the groundwaterDepending on use of site, no remediation

recommended, ie, surficial soil removal if use is residential

Groundwater flow is in a northeasternly direction

UST Removal and Disposal of Contaminated Soil

UST Removal and Investigation

Contaminated Soil Removal & Disposal

Trust Fund Assistance

– Hanes Dye & Finishing

– Seymour Johnson AFB

– Picerne Housing, Ft Bragg

Facility Support Services Contracts

• Working with Research Triangle Institute in developing Baseline Monitoring Plans as well as research subproject plans that will meet Camp Lejeune’s needs and better manage their natural resources through the Strategic Environmental Research and Development Program (SERDP).

• Fayetteville, NC Annual Infrastructure Maintenance Program: PSI has in-place an annual agreement with the Public Works Commission of Fayetteville, North Carolina to perform, as necessary, the following services: collection system cleaning using high velocity jetting equipment, closed circuit television inspections of pipelines, inclinometer surveys, sewer root cutting, wastewater treatment plant maintenance, pump station maintenance, locating manholes, manhole inspections, land application of biosolids, infiltration/inflow evaluations, and GIS mapping of drainage systems and lift stations.

Facility Support Services Contracts

• BPA for Environmental Services at Marine Corps Base, Camp Lejeune

• BPA for Environmental Services at MCAS, Cherry Point, NC

Both BPAs include environmental and other services including but not limited to assessments, studies, testing, remediation, and related industrial hygiene services, facilities/infrastructure operations, problem detection, maintenance and repair, wastewater and storm water compliance issues, hazardous waste management, reports, and training.

PSI conducted Air Sampling to monitor worker exposure to Silica at the UNILEVER facility PSI performs Air Sampling to monitor worker exposure to Hexavalent Chromium VI at MCAS CP

Before Duct Cleaning/MR

After Duct Cleaning/MR

Water and Sewer Infrastructure Construction Management and Grant Support

Hoke County Regional WWTP – stream modeling required on outfalls – Rural Center and CWMTF grant proposals in progresso Outfalls - Puppy Creek, Rockfish Creek, Black Branch Creek, Beaver Creek - QUAL2K

Hoke County Ethanol Plant – Gas Distribution Line and Fire suppression water tank – Rural Center and CDBG grant proposals in progress - construction management oversight upon approval

Donald D. Steed Lift Station and Force Main (In Progress)

Walmart Water and Sewer Connection (401 Corridor) – Rural Center grant proposals underway

Water and Sewer Infrastructure Construction Management

Pump Station to serve Donald D. Steed Elementary School on Phillipi Church

Road, in Raeford, NC

Water and Sewer Infrastructure Project Management and Grant Support

Need a photo of the Ethanol site

The $100 million plant , by Clean Burn Fuels, built in Hoke County, will be the

largest on the East Coast. It is one of four proposed facilities in the state hoping to cash in on what could become the surge

in biofuels interest.

Proposed project: WWTP effluent is in planning to be piped to Ethanol plant as a primary water source.

Water and Sewer Infrastructure Project Management

Hoke County, NC commissioners are working with Wal-Mart to open its doors next year, with grants for the infrastructure

improvements being written to help handle water and sewer.

Rural Center and CDBG grants

Emergency Response (URS, Fort Bragg, NC DOT, and local government)

Emergency Response to Oil Water Separator Overflow at Fort Bragg Approximately 97.47 tons of contaminated soil and sludge was removed from the retention pond and construction site. Contaminated material was transported to a permitted remediation facility off-site. Three post excavation soil samples were collected from the retention pond. The samples were analyzed for MADEP Extractable Petroleum Hydrocarbons (EPH) and MADEP Volatile Petroleum Hydrocarbons (VPH). Upon receiving the lab results, restoration of the project site was conducted. The retention pond was backfilled and compacted with local borrow soil along with all areas were heavy equipment had accessed the contaminated sites. The areas were stabilized and reseeded per Fort Bragg seeding specifications.

Other Professional Services -Technology Transfer (T2) Bridge Program

Managed by ECU – T2Bridge is a focused outreach program that provides one-on-one support to companies interested in licensing technologies

developed with DoD resources or transitioning their own innovative products or technologies into DoD. Specific components of the program supported

by Porter Scientific include: facilitating the licensing of DoD technologies to the commercial sector; accelerating the transition of

innovative technologies from the commercial sector to DoD with heavy emphasis on those technologies that will directly benefit the

warfighter; encourage further utilization/access of DoD infrastructure to aid in the technology transition (e.g. validation/verification); and

through providing additional support and leverage on programs such as the Small Business Innovation Research (SBIR) and other R&D

funding programs.

Monitor, test, treat, and provide water quality data analysis for boilers, cooling towers, and chilled water systems

IWT chemicals purchased from national chemical supplier

Corrosion Control - Industrial Water Treatment

Lab Services

PSI Technical Team

The PSI technical support team offers complete technical and

laboratory support for chemical services related to water

treatment.

Project Manager Chemist

Industrial Water Technician

Chemical Formulations based on SOW – purchased from national chemical supplier

Service Report Porter Scientific Incorporated 719 Old Main Road PO Box 1359 Pembroke, NC 28372 Phone: (910) 521-0549 Fax: (910) 521-3599

Customer Number: 105964 Report Date: 04-09-08

Company: ROBINS AIR FORCE BASE Copy: MR. WENDELL RATTERREE

Location: BUILDING 644 Robins AFB, GA 31098 Copy:

Attention: MR. ROBERT CUMMINGS Copy:

Control Limits

Sample Source MAKE-UP WATER

FEED WATER

BOILER

# 4

EAST

Condensate

WEST

Condensate

BOILER Condensate

Conductivity us/cm 131 34 2149-1185 49 22 900-1200 0-15 pH 6.9 8.5 11.1 7.4 8.2 10.3-12.0 8.0-8.5 P-Alkalinity (1154) ppm 430 300-500 M-Alkalinity ppm 480 Chlorides ppm Calcium Hardness ppm Total Hardness ppm 52 4 12 6 < 0.25 Phosphate (1280) ppm 7.2 10-20 Sulfite (1040) ppm 20 30-60 Iron ppm .05 .01 .01 .00 < 0.05 Molybdenum ppm Sodium Nitrite ppm Silica ppm 9.8 2.3 33.8 OH Alkalinity ppm 380 220-500 Cycles of Conc. 14.6

* Operation outside of control ranges may cause system damage and failure.

Feed-water: The silica test indicates 23.4% makeup occurring at the time of sampling. Boiler #4: The conductivity level was within range. However, the treatment level was low at the time of sampling. Porter Scientific will adjust the treatment application rate in order to bring the levels up to the specified ranges to prevent scale/corrosion formation. East Condensate: Hardness was detected. Please check for the possibility of leaking heat exchangers. West Condensate: The iron level was within the specified range indicating adequate corrosion control at the time of sampling.

Inventory Product 1154 1280 1040 2012 Usage Rate Current Inventory. To Be Ordered

Energy and Water Conservation

Basewide Order – reduce water usage by 2%

HAZMAT Waste Reduction

Replacing IWT chemicals with Molybdenum free chemicals

Building 59

Building 177 – valve repairs

Monitoring Makeup water with meters

Clean Water Management Trust Fund Proposal for Hoke County

Clean Water Management Trust Fund grant proposal submitted for Wastewater Infrastructure Improvement Project along 401 Corridor – Hoke Co – BRAC RTF focused growth area includes novel research approach for measuring E-coli accumulation - Rachel Noble, Ph.D., UNC CH 1Most of Hoke County has either moderate or severe

limitations for septic fields – Puppy Creek – near housing with failing septic systems

Solid Waste Project ManagementRobeson County Solid Waste Landfill – Phase IV expansion – design/build project with B&C

o Local Client Regulatory & Community Relations Client Liaison Local Regulatory Liaison Public Meetings

o Engineering & Construction Support Construction Management Leachate Pump Station Design support Bid Development & Procurement

o Local Sampling & Inspection Groundwater, Surface water Sampling Daily Oversight Soil Sampling

Landfill Groundwater Monitoringand Leachate Line Inspections

Landfill Cross Section

Landfill Groundwater Monitoringand Leachate Line Inspections

15A NCAC 13B .0601 GROUND‑WATER MONITORING - requiredof SWMF to detect effects of the facility on ground-water in the area.

15A NCAC 13B .0602 SURFACE WATER MONITORING - requiredof SWMF to detect effects of the facility on ground-water in the area.

Landfill Groundwater Monitoringand Leachate Line Inspections – Robeson

County

Landfill Groundwater Monitoring andLeachate Line Inspections – Robeson County

Professional Services

EPA Modeling Support:

PSI was tasked by the US Environmental Protection Agency (EPA) to analyze mathematical models of mass conservation and to implement efficient numerical algorithms that predict the extent of groundwater contamination. PSI personnel also provided training support by instructing the mathematical modeling component of an EPA course entitled “Modeling Subsurface Hydrocarbon (BTEX and MTBE) Transport and Natural Attenuation” with the USEPA Ecosystems Research Division in Athens, Georgia. PSI personnel later researched, evaluated, and coauthored a paper titled “Estimating the Rate of Natural Bioattenuation of Groundwater Contaminants by a Mass Conservation Approach.” 2

Estimating the rate of natural bioattenuation of groundwater contaminants by a mass conservation approach

A number of factors influence the rate of biodegradation, which helps determine the extent of contamination. Estimating degradation rate constants is necessary for determining the impact of contaminants on environmental receptors.

Contaminant mass conservation . Contaminants dissolved in ground water are subject to conservation of mass, M,

,MJt

MM

Where JM is the mass flux and λ is the first-order decay constant. Used conventionally for subsurface biodegradation, it summarizes the behavior at a particular point in time and space.

(1)


If subsurface contamination is conceptualized as in Figure 1, (1) can be applied to a control volume that surrounds the contaminant plume. The control volume is assumed to contain all aquifer contamination at all times of interest, so no mass exits the control volume. The only input of mass is assumed to occur at the contact between the oil lens and the water table. Equation (1) can then be written as a first order linear ODE

, 0)(

MtJt

Min

Where Jin (t) is the rate that mass enters the contaminant plume. The solution of (2) is

(2)

.)()(1

11 )()(

t

t

intstt CdssJeetM

(3)


Figure 1.

Four cases are of interest: Case 1: where mass flux to the aquifer is zero; Case 2: where mass flux is a constant; Case 3: if mass flux to the aquifer as a represented as a decaying exponential function; and Case 4: mass flux is represented as a general function of time. HSSM computer model was used to estimate the mass flux.

References

1. Noble, Rachel T., John F. Griffith, A. Denene Blackwood, Jed A. Fuhrman, Jason B. Gregory, Ximena Hernandez, Xiaolin Liang, Angie A. Bera, and Kenneth Schiff. Feb 2006. Applied and Environmental Microbiology. 72:1604-1612

2. Weaver, James W. and Freda Porter-Locklear. 1998. Estimating the Rate of Natural Bioattenuation of Ground Water Contaminants by a Mass Conservation Approach. SIAM Rev. 40:113-117.

3. Norris, Robert D., Robert E. Hinchee, Richard Brown, Perry L. McCarty, John T. Wilson, Don H. Kampbell, Martin Reinhard, Edward J. Bouwer, Robert C. Borden, Timothy M. Vogel, J. M. Thomas, and C. H. Ward. 1993. Handbook of BIOREMEDIATION. Robert S. Kerr Environmental Research Laboratory.

4. Bear, Jacob. 1979. Hydraulics of Groundwater. McGraw-Hill Series in Water Resources and Environmental Engineering.

Documents

Technologies for addressing Environmental Challenges dedicated to Environmental Protection and Restoration