Presentation on theme: "Technologies for addressing Environmental Challenges dedicated to Environmental Protection and Restoration."— Presentation transcript:
Technologies for addressing Environmental Challenges dedicated to Environmental Protection and Restoration
Technologies for addressing Environmental Challenges Freda Porter, Ph.D., President and CEO Porter Scientific The protection of water resources is vital in todays 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 Technologies for addressing Environmental Challenges Mathematical Modeling of Groundwater Contamination
Corporate Headquarters Porter Plaza 719 Old Main Road Pembroke, NC 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 ft 2 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 Division o Environmental Protection and Restoration o Technical and Environmental Consulting Services Professional Services Division o Water and Sewer Construction Management o Education, Outreach and Workforce Development Training o Facility Support Services o Grant Writing Information Technology Division o GIS Mapping of Infrastructure o Database Management
Certifications Water Pollution Control System Operator Certification – LA Septage Management Firm – NCS GIS Technician Licensed Asbestos Inspector – BI Lead Inspector/Risk Assessor Secret Security Clearance (Facility & Personnel) Hazardous Material Transport (DOT Registration No N, EPA Id. No. NC ) 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 ) 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 South BB&T Lumbee Guaranty Bank Native Angels Health Care First Bank K 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 CourseContact Hours HAZWOPER (Hazardous Waste & Emergency Response) 40 OSHA General Industry Standards & Safety10 Heavy Equipment Operation & Safety10 AHERA Asbestos Worker32 Lead Worker – EPA16 DOT Handling & Shipping of Hazardous Materials 8 Microbial Remediation Worker 16 Wastewater Physical/Chemical – Grade 124 OJT (On the Job Training)40 TOTAL196
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 Sheffs Seafood Parking Lot Petroleum product in storm drains – existing monitoring wells on site
Robeson County EPA Brownfields Sites Johnson Cotton Building Lumberton Old Mueller Steam Building, St Pauls Transformer Site Red Springs Former Peoples Gas & Oil Site, Red Springs
Robeson County EPA Brownfields Sites Burned Plant Maxton Maxton Oil & Fertilizer Maxton Textile Plant St. Pauls Tobacco Warehouse Fairmont
City of Durham EPA Brownfields Sites Former Green Oil Site Durham – Phase II completed Surficial 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 4 Groundwater contamination was next door Metals in the groundwater Depending 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 Lejeunes 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 progress o 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 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 (T 2 ) Bridge Program Managed by ECU – T 2 Bridge 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
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 1 Most of Hoke County has either moderate or severe limitations for septic fields – Puppy Creek – near housing with failing septic systems
Solid Waste Project Management Robeson 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 Monitoring and Leachate Line Inspections Landfill Cross Section
Landfill Groundwater Monitoring and Leachate Line Inspections 15A NCAC 13B.0601 GROUND WATER MONITORING - required of SWMF to detect effects of the facility on ground-water in the area. 15A NCAC 13B.0602 SURFACE WATER MONITORING - required of SWMF to detect effects of the facility on ground-water in the area.
Landfill Groundwater Monitoring and Leachate Line Inspections – Robeson County
Landfill Groundwater Monitoring and Leachate 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, Where J M 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)
Estimating the rate of natural bioattenuation of groundwater contaminants by a mass conservation approach 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 Where J in (t) is the rate that mass enters the contaminant plume. The solution of (2) is (2) (3)
Estimating the rate of natural bioattenuation of groundwater contaminants by a mass conservation approach 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 Applied and Environmental Microbiology. 72: Weaver, James W. and Freda Porter-Locklear Estimating the Rate of Natural Bioattenuation of Ground Water Contaminants by a Mass Conservation Approach. SIAM Rev. 40: 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 Handbook of BIOREMEDIATION. Robert S. Kerr Environmental Research Laboratory. 4.Bear, Jacob Hydraulics of Groundwater. McGraw-Hill Series in Water Resources and Environmental Engineering.