Carlo Lebron, PE is a Senior Vice President and the Business Unit Director of the Southeast Region. He has over two decades of experience in a wide variety of environmental projects with particular emphasis on solid waste management. He is a licensed Professional Engineer in Florida, Georgia, Alabama, North Carolina and Puerto Rico. Mr. Lebron is also Vice President of SCS Engineers Puerto Rico PC.
Carlo Lebron, PE is a Senior Vice President and the Business Unit Director of the Southeast Region. He has over two decades of experience in a wide variety of environmental projects with particular emphasis on solid waste management. He is a licensed Professional Engineer in Florida, Georgia, Alabama, North Carolina and Puerto Rico. Mr. Lebron is also Vice President of SCS Engineers Puerto Rico PC.
Mr. Lebron has been practicing solid waste engineering since 1999 and has worked on projects in more than half the country. He has experience in landfill gas collection systems and landfill gas to energy projects all across the U.S. He has experience on more than 100 landfill gas projects, including evaluation, design, permitting, construction, operation. He has led a solid waste group that has experience in construction management and oversight of landfill and landfill gas collection systems, soil vapor extraction systems, and other solid waste construction projects. Mr. Lebron has extensive experience with Title V permitting and other regulatory requirements associated with landfill gas collection systems such as NSPS and NESHAP.
Mr. Legaspi is a Senior Vice President and O&M Region Manager, West Region, responsible for the following counties in California: Orange County, San Bernardino County, Imperial County, and Riverside County. He is a Senior Project Manager with nearly 20 years of experience in planning, directing, and implementing landfill gas (LFG) and groundwater operation, maintenance, and monitoring (OM&M) and construction projects, particularly related to LFG and groundwater extraction and treatment systems.
Dr. Lemaster is a Senior Project Manager in our SCS Tracer Division. She is responsible for the documentation of Process Safety Management Programs (PSM) / Risk Management Programs (RMP) / California Accidental Release Prevention Programs (CalARP) projects for regulated facilities using hazardous materials. She has a Bachelor’s Degree in Chemical Engineering, and recently earned her Masters and PhD in NanoEngineering from the University of California, San Diego.
Dr. Lemaster is a Senior Project Manager in our SCS Tracer Division. Her main area of concentration is risk analysis. The main focus of her work is the preparation and completion of multiple projects and general risk analysis work for many clients. She has a Bachelor’s Degree in Chemical Engineering, and recently earned her Masters and PhD in NanoEngineering from the University of California, San Diego.
Dr. Lemaster is responsible for the documentation of Process Safety Management Programs (PSM) / Risk Management Programs (RMP) / California Accidental Release Prevention Programs (CalARP) projects for regulated facilities using hazardous materials. This work includes preparing the program documentation for compliance with the PSM/RMP/CalARP regulations, leading Process Hazard Analyses (PHA) studies, completing Hazard Assessments, providing CalARP implementation training, developing Piping and Instrumentation Diagrams, conducting Seismic Assessments, and producing project-related technical reports.
Daniel M. Leo is experienced in renewable energy industries, including fuel ethanol, gasification, pyrolysis, syngas cleaning, fischer-tropsch synthesis, and renewable natural gas (RNG) production. He currently is a member of the SCS Energy process engineering team responsible for the design, construction and operation/maintenance of biogas to Renewable Natural Gas and energy facilities.
Daniel M. Leo is experienced in renewable energy industries, including fuel ethanol, gasification, pyrolysis, syngas cleaning, fischer-tropsch synthesis, and renewable natural gas (RNG) production. His background is in chemical process engineering and intellectual property management and he currently is a member of the SCS Energy process engineering team, a division within SCS Engineers, which is responsible for the design, construction and operation/maintenance of biogas to Renewable Natural Gas & energy facilities. He provides a wide array of engineering and patent services ranging from innovation to commercialization.
Mr. Leo has invented, commercialized, and authored a portfolio of sixty-three patents and patent applications all over the world directed at renewable energy gasification to liquid fuel technology.
Ms. Leonard is a Senior Vice President of SCS Engineers and our National Expert on Solid Waste Planning & Recycling. She has over 35 years of experience in environmental consulting and project management, with emphasis in Sustainable Materials Management, including solid waste management planning and facilities. She helps public and private sector clients prepare solid waste management plans; designs and implements waste reduction, recycling, and reuse programs; and evaluates existing programs to identify opportunities to reduce, reuse, and recycle solid waste. She prepares plans and permits for transfer stations, material recovery facilities (MRFs), and drop-off and buy-back centers.
Ms. Leonard is a Senior Vice President of SCS Engineers and our National Expert in Solid Waste Planning & Recycling. She has over 35 years of experience in environmental consulting and project management, with emphasis in Sustainable Materials Management, including solid waste management planning and facilities. She helps public and private sector clients prepare solid waste management plans; designs and implements waste reduction, recycling, and reuse programs; and evaluates existing programs to identify opportunities to reduce, reuse, and recycle solid waste. She prepares plans and permits for transfer stations, material recovery facilities (MRFs), and drop-off and buy-back centers. She completes environmental impact assessments, facility permit applications, odor and dust control plans, and other support documents. Ms. Leonard has a strong working knowledge of solid waste management regulations and practices, and has prepared numerous successful projects to city, county, and state regulators.
Ms. Leonard is a member of the Solid Waste Association of North America (SWANA), including International Board Past President; Past Director of SWANA’s Recycling and Special Waste Technical Division; and is on the Board of Directors of SWANA’s Southern California Founding Chapter (2009 to present). She is also a Past Director of the Southern California Waste Management Forum and Past President of the Women’s Environmental Council. She was appointed by the Secretary of Commerce as a Member of the Environmental Technologies Trade Advisory Committee.
Contact Michelle at 626-792-9593 or
Mr. LeTendre is experienced in landfill gas issues and operation of landfill control systems at solid waste landfill facilities. Responsibilities include operation and maintenance services that range from daily to quarterly monitoring at closed landfills and a wastewater treatment plant.
Mr. LeTendre is experienced in landfill gas issues and operation of landfill control systems at solid waste landfill facilities. Responsibilities include operation and maintenance services that range from daily to quarterly monitoring at closed landfills and a wastewater treatment plant. Other operation and maintenance services which were provided include quarterly ground water monitoring, gas well balancing, repair and troubleshooting of landfill gas system equipment, system modifications, gas system compliance record keeping, emit ion logs, and provide technical support. He provides routine services which include testing monitoring wells, extraction well, header lines, and blower/flare station data collection, extraction well balancing and adjustment; blower/flare station adjustment and maintenance; and extraction system troubleshooting and repair. Other work includes non-routine scheduled repair and emergency call-out response.
Mr. Lewallen has experience managing both construction and OM&M projects, including wellfield assessment & tuning, procurement, estimating, scheduling, budgeting, monitoring data analysis and sub-contractor management, as well as other administrative activities. He has been responsible for estimating and managing a wide range of landfill gas control system upgrades and expansion projects for both private and municipal entities. His specific experiences include work related to LFG collection systems monitoring and construction, extraction well construction, flare installations/upgrades, polyethylene (PE) pipe fusion, polyvinyl chloride (PVC) pipe installation, horizontal collection trenches, and condensate collecting/containment systems.
Prior to joining SCS Field Services, Mr. Lewallen worked in the residential and commercial construction industry for 13 years overseeing the construction of custom homes, residential communities, and commercial buildings in and around the Dallas/Fort Worth, Texas area. During his tenure as Project Manager, Mr. Lewallen managed large residential projects with responsibilities including project budgeting, scheduling, sub-contractor negotiations/management, vendor procurement, client communications, and design management.
In 2008, Mr. Lewallen joined the SCS team and merged his construction experience with his formal educational training and is now holding the position of Project Manager over landfill construction projects.
Mr. Lewallen currently provides SCS Field Services with expertise in construction management including procurement, estimating, scheduling, budgeting, and sub-contractor management, as well as other administrative activities.
Mr. Lewallen has been responsible for estimating and managing the construction on a wide range of landfill gas control system upgrades and expansion projects for both private and municipal entities. His specific experiences include work related to LFG collection systems, extraction well construction, flare installations/upgrades, polyethylene (PE) pipe fusion, polyvinyl chloride (PVC) pipe installation, horizontal collection trenches, and condensate collecting/containment systems.
Mr. Lewis is a Vice President of SCS and has been with SCS Field Services since 1987. Mr. Lewis’s long career at SCS started as a field technician maturing to a Vice President and Regional Manager. He leads construction, operation, and repair of environmental pollution control facilities and remediation projects.
Mr. Lewis is a Vice President of SCS and has been with SCS Field Services since 1987. Mr. Lewis’s long career at SCS started as a field technician maturing to a Vice President and Regional Manager. He leads construction, operation, and repair of environmental pollution control facilities and remediation projects. Most of this SCS experience has involved the construction of new and expanded landfill gas (LFG) collection, flaring and utilization systems.
Many projects involve major overhauls and repairs. LFG projects under Mr. Lewis’ direction have included landfill gas to energy facilities, compressor stations, off-site landfill gas pipelines for direct use, gas extraction well installations, collection header lines, polyethylene (PE) pipe fusion, polyvinyl chloride (PVC) pipe installation, installation of condensate/leachate containment and collection facilities, installation of blower/flare station mechanical equipment (including concrete pads, blowers, flares, compressors, condensate tanks, pumps, flame arrestors, electrical panels, etc.), repair of landfill cover systems, erosion and sediment controls, and landfill revegetation.
Mr. Lewis’ construction experience also includes numerous remediation projects. These projects include underground storage tank (UST) excavation and removal, chemical and petroleum contaminated soil excavation, transportation, and disposal, construction of soil vapor extraction systems (VES), including installation of air monitoring facilities at a state Superfund site, and construction of a combination VES/biotreatment system.
Mr. Liggins is the Chief Financial Officer (CFO) of SCS Engineers. He is responsible for managing financial risks, as well as financial planning and analytics. He is a certified public accountant with over ten years of experience in related financial positions with service driven companies. Mr. Liggins has a Master’s degree in Taxation from Golden Gate University and a BA in Business Management and Accounting from Western Michigan University, Haworth College of Business.
Mr. Liggins is SCS Engineers’ Chief Financial Officer. He previously served as our Controller. He is a certified public accountant with over ten years of experience in related financial positions with service driven companies. Mr. Liggins has a Master’s degree in Taxation from Golden Gate University and a BA in Business Management and Accounting from Western Michigan University, Haworth College of Business. As the accounting officer at SCS, he is responsible for ensuring effective and efficient recording of accounting transactions, as well as monitoring adherence to established operating procedures and internal controls.
Mr. Linehan is a Vice President and a Project Director responsible for overseeing solid waste and environmental services projects from the SCS Oklahoma City and Wichita offices. He has a broad range of expertise, including solid and hazardous waste regulations, landfill design, and regulatory compliance. Mr. Linehan has participated in or directed numerous projects including: landfill projects, compliance audits, storm water modeling and design, remedial action plans, remedial systems designs, site investigations, health and safety assessments, waterway crossing assessments, and construction projects. Project sites have included solid waste facilities, active and closed landfill sites, oil well fields, fuel storage facilities, vehicle maintenance facilities, truck stops, industrial sites, and agricultural sites. He holds professional engineering licenses in Kansas, Missouri, Nebraska, and Oklahoma.
Mr. Linehan is a Vice President and a Project Director responsible for overseeing solid waste and environmental services projects from the SCS Oklahoma City and Wichita offices. He has a broad range of expertise, including solid and hazardous waste regulations, landfill design, and regulatory compliance. Mr. Linehan has participated in or directed numerous projects including: landfill projects, compliance audits, storm water modeling and design, remedial action plans, remedial systems designs, site investigations, health and safety assessments, waterway crossing assessments, and construction projects. Project sites have included solid waste facilities, active and closed landfill sites, oil well fields, fuel storage facilities, vehicle maintenance facilities, truck stops, industrial sites, and agricultural sites. He holds professional engineering licenses in Kansas, Missouri, Nebraska, and Oklahoma.
Stephanie Liptak, EIT, specializes in landfill gas design, master planning, permitting, construction management, and construction quality assurance. She has a broad range of experience with the regulatory requirements of the Florida Department of Environmental Protection and assists private and municipal landfills by providing regulatory compliance support including: Title V air permitting, annual and semi-annual compliance reporting, review of monthly LFG data and greenhouse gas reporting.
Stephanie Liptak, EIT, specializes in landfill gas design, master planning, permitting, construction management, and construction quality assurance. She has a broad range of experience with the regulatory requirements of the Florida Department of Environmental Protection and assists private and municipal landfills by providing regulatory compliance support including: Title V air permitting, annual and semi-annual compliance reporting, review of monthly LFG data and greenhouse gas reporting.
Dr. Lister has 40 years of professional experience in geology and hydrogeology. His experience includes groundwater investigations at active and inactive industrial facilities; active, inactive, and planned solid waste disposal sites; and state and federal Superfund sites.
Joey Litchfield has over 35 years of experience in a variety of solid waste projects for both private and municipal facilities in Florida. He performs landfill operations management and surveying of landfills, geosynthetic panel layout, gas collection systems, transfer stations, storm water protection and drainage systems.
His responsibilities include landfill operations manager, landfill site surveyor, construction surveying including designing landfill gas collection systems, flare and blower station installation, site cell development and drainage system surface water management control projects, high rise projects, airport runway and taxiway systems. His CQA responsibilities include providing support for CQA reports for soil and geosynthetic liners and serving as on-site lead technician for geosynthetic liner systems.
Mr. Llanas is experienced in all aspects of landfill gas system construction, including collection pipe fusion and installation, LFG extraction well installation, leachate recovery system installation, flare installation and maintenance, and omissions maintenance and monitoring services. Mr. Llanas also has a wide breadth of experience in performing the full range of Landfill Gas Collection System CQA and construction oversight duties.
Mr. Lock is a Vice President of SCS. He has over 30 years of experience in landfill gas (LFG) collection system operation and maintenance (O&M), environmental regulatory compliance, site assessment, and post-closure care. He manages technical staff working on projects throughout the Northeastern United States.
Mr. Lock is a Vice President of SCS. He has over 30 years of experience in landfill gas (LFG) collection system operation and maintenance (O&M), environmental regulatory compliance, site assessment, and post-closure care. He manages technical staff working on projects throughout the Northeastern United States.
His background includes developing and/or evaluating monitoring equipment; actively participating in planning and management of research and development and construction projects; managing ongoing environmental sampling and monitoring programs; reviewing gas system construction designs; managing LFG collection system O&M; developing and delivering technical training sessions; evaluating, coordinating, and tracking expenses; and hiring and evaluating engineering technicians.
Formerly with the Los Angeles County Sanitation Districts (LACSD), Mr. Lock managed a staff of 20 engineering technicians at several landfills in the County. He was responsible for O&M of the gas collection systems at two landfills, including flaring stations, condensate and leachate collection systems, and odor control systems. Both sites supplied fuel to gas-to-energy or compressed gas facilities. Other responsibilities included groundwater quality and runoff monitoring at six landfills, a transfer station, and a refuse-to-energy plant; regulatory compliance monitoring of surface gas emissions and ambient air at two landfills; and ash sampling at a refuse-to-energy plant.
Ms. Luu is a Project Professional for the Tracer Environmental division, based out of California’s Central Coast. She has over 5 years of experience in ambient air monitoring, ranging from black carbon in the LA basin, formaldehyde at the highest peak in Germany, to odors in different applications around the nation.
Ms. Luu is a Project Professional for the Tracer Environmental division, based out of California’s Central Coast. She has over 5 years of experience in ambient air monitoring, ranging from black carbon in the LA basin, formaldehyde at the highest peak in Germany, to odors in different applications around the nation. She conducts routine operation and inspection of air monitoring stations as well as the calibration and operation of pollutant analyzers, meteorological sensors, chart recorders, data acquisition systems, computers and their associated software and peripherals. She also compiles monthly air monitoring reports and submits validated, processed data for air monitoring stations to the California Air Resource Board and the Santa Barbara County APCD. Ms. Luu has conducted a variety of odor assessment projects across the nation, ranging from alternative agriculture farms to landfills.
Trevar Lytle, EIT, is experienced in Civil and Environmental Engineering. His project experience includes landfill design and permitting, landfill construction quality assurance, Gas Collection and Control System design and permitting, Gas Collection and Control Construction Quality Assurance, Phase I and Phase II Environmental Site Assessments, Leachate and Stormwater Management, and numerous other field activities.
Trevar Lytle, EIT, is experienced in Civil and Environmental Engineering. His project experience includes landfill design and permitting, landfill construction quality assurance, Gas Collection and Control System design and permitting, Gas Collection and Control Construction Quality Assurance, Phase I and Phase II Environmental Site Assessments, Leachate and Stormwater Management, and numerous other field activities.
Mark Madden is a Project Professional for our OM&M Group in Michigan. He has four decades of engineering and management experience, including geotechnical engineering for residential, commercial and infrastructure development, contaminated site restoration with emphasis on in-situ remediation techniques, mine development and solid waste management. He has solid waste management experience in municipal solid waste, construction and demolition waste, and mine waste disposal. Experience includes permitting, design, construction, operation, closure and environmental management of solid waste disposal facilities; landfill gas collection, control and beneficial utilization; and leachate management. He has designed and completed research, development and demonstration projects associated with leachate recirculation, landfill gas migration and temperature distribution in waste.
Mark Madden is a Project Professional for our OM&M Group in Michigan. He has four decades of engineering and management experience, including geotechnical engineering for residential, commercial and infrastructure development, contaminated site restoration with emphasis on in-situ remediation techniques, mine development and solid waste management. He has solid waste management experience in municipal solid waste, construction and demolition waste, and mine waste disposal. Experience includes permitting, design, construction, operation, closure and environmental management of solid waste disposal facilities; landfill gas collection, control and beneficial utilization; and leachate management. He has designed and completed research, development and demonstration projects associated with leachate recirculation, landfill gas migration and temperature distribution in waste.
Mr. Madden was responsible for development and environmental compliance at the Anchorage Regional Landfill; the largest permitted solid waste disposal facility in Alaska as well as associated waste collection and transfer operations.
Mr. Mahon is experienced in landfill, landfill gas (LFG), and stormwater management, including landfill design and annual tasks, landfill gas design and LFG monitoring, and stormwater management design and field sampling. His experience includes landfill and landfill gas permitting, as well as construction level drawings and plans. Landfill tasks have also typically included construction and closure cost estimates.
Mr. Mahon is experienced in landfill, landfill gas (LFG), and stormwater management, including landfill design and annual tasks, landfill gas design and LFG monitoring, and stormwater management design and field sampling. His experience includes landfill and landfill gas permitting, as well as construction level drawings and plans. Landfill tasks have also typically included construction and closure cost estimates.
He has completed field work at a number of landfills, a transfer station, and vehicle maintenance facility. Field work has included landfill gas monitoring and adjustment and stormwater sampling.
Zachary Mahon, PE, is a project engineer experienced in solid waste and environmental engineering. He conducts many solid waste design and construction projects for clients throughout Nebraska and the Midwest. Experience include the design, permitting, and construction of two ash monofill closure projects for the local power utility which involved design slope modifications and stormwater controls. Additional experience includes design engineer for paving projects associated with landfill infrastructure and contract administrator and construction oversight observer for several landfill cell construction projects
Zachary Mahon, PE, is a project engineer experienced in solid waste and environmental engineering. He conducts many solid waste design and construction projects for clients throughout Nebraska and the Midwest. Experience include the design, permitting, and construction of two ash monofill closure projects for the local power utility which involved design slope modifications and stormwater controls. Additional experience includes design engineer for paving projects associated with landfill infrastructure and contract administrator and construction oversight observer for several landfill cell construction projects
Mr. Mandeville is a Senior Vice President of SCS Engineers. His experience includes solid waste, storage tank, and other environmental service type projects, with more than 30 years of diversified experience in civil and geotechnical engineering includes design and management of large, complex projects for the private sector, local governments, and the federal government. Mr. Mandeville is a licensed Professional Engineer in Virginia, Maryland, the District of Columbia, and South Carolina. He is also a Class II Waste Management Facility Operator in Virginia and a Certified Value Engineer.
Mr. Mandeville is a Senior Vice President of SCS Engineers. His experience includes solid waste, storage tank, and other environmental service type projects, with more than 30 years of diversified experience in civil and geotechnical engineering includes design and management of large, complex projects for the private sector, local governments, and the federal government. Mr. Mandeville is a licensed Professional Engineer in Virginia, Maryland, the District of Columbia, and South Carolina. He is also a Class II Waste Management Facility Operator in Virginia and a Certified Value Engineer.
Mr. Mandeville served as SCS Engineer’s Business Unit Director of the Mid-Atlantic region, stretching from Maine to South Carolina, for over 20 years.
Ms. Maranhas conducts stormwater inspections and monitors and samples excavation sites. Her academic background is in geology and related sciences, including geomorphology, hydrogeology, physical and historical geology, sedimentology, stratigraphy, structural geology. She also has experience with field methods, GIS, and AutoCAD.
Ms. Maranhas conducts stormwater inspections and monitors and samples excavation sites. Her academic background is in geology and related sciences, including geomorphology, hydrogeology, physical and historical geology, sedimentology, stratigraphy, structural geology. She also has experience with field methods, GIS, and AutoCAD.
Prior to joining SCS, she worked for the Livermore Area Parks and Recreation District, performing tasks associated with riparian restoration and stream maintenance, including performing multiple aspects of vegetation maintenance, planting trees, using willows to stabilize biotechnical banks, and utilizing various methods of non-invasive weed control. As part of this work, she also calculated waste removal from local streams utilizing an agency-approved protocol to meet mandated regulatory reporting requirements. Ms. Maranhas is proficient in data entry, analysis, graphing, and reporting, and utilizes ArcGIS and AutoCAD for mapping.
Mr. Marczewski is an operations management professional experienced in the oil and gas industry and in environmental consulting. His experience includes groundwater monitoring, construction quality assurance, and environmental support services.
Mr. Markley is our National Expert for Deep Well and Underground Injection Control. He currently manages our Wichita office. His project experience includes engineering geology evaluations related to salt caverns, geologic isolation of fluids and compressed gasses, hydrogeological investigations at landfills and quarries, liquids management, regulatory compliance, and permitting, groundwater investigations at superfund and RCRA facilities, remedial system design, cost allocation and recovery from responsible parties. He is a Professional Geologist licensed in the state of Kansas.
Mr. Markley is our National Expert for Deep Well and Underground Injection Control. He currently manages our Wichita office. His project experience includes engineering geology evaluations related to salt caverns, geologic isolation of fluids and compressed gasses, hydrogeological investigations at landfills and quarries, liquids management, regulatory compliance, and permitting, groundwater investigations at superfund and RCRA facilities, remedial system design, cost allocation and recovery from responsible parties. He is a Professional Geologist licensed in the state of Kansas.
Contact Monte at 316-315-4501 or
Jeff Marshall, PE, is a Vice President of SCS Engineers, Environmental Services Practice Leader for SCS offices in the Mid-Atlantic region, and our National Expert on Emerging Contaminants and on Innovative Technologies. His four decades of experience include a diversified background in project engineering and management, with emphasis on environmental chemistry, hazardous materials/waste and human health risk issues. Focus areas include environmental permitting, regulatory compliance, and hazardous materials treatment/remediation. He is a licensed professional engineer in Virginia, Maryland, West Virginia, North Carolina and South Carolina.
Mr. Marshall is a Vice President of SCS Engineers, Environmental Services Practice Leader for SCS offices in the Mid-Atlantic region, and our National Expert on Emerging Contaminants as well as Innovative Technologies. His four decades of experience include a diversified background in project engineering and management, with emphasis on environmental chemistry, hazardous materials/waste and human health risk issues. Focus areas include environmental permitting, regulatory compliance, and hazardous materials treatment/remediation. He is a licensed professional engineer in Virginia, Maryland, West Virginia, North Carolina and South Carolina.
Clients have included dozens of Department of Defense facilities (throughout the US, Panama, Japan, Puerto Rico and Italy), scores of state and local governments, municipal maintenance facilities, active and closed landfills, waste-to-energy plants, recycling facilities, airports, R&D facilities, electronics manufacturers, coal-fired and dual-fueled electric power plants and cogeneration plants, potable water treatment and distribution utilities, printing plants, plating shops, petroleum refineries and bulk storage/distribution facilities, fertilizer manufacturing plants, adhesives formulators, polymer manufacturing and extrusion lines, hospitals and healthcare facilities, aluminum extrusion and machining facilities, auto parts manufacturers, explosives manufacturers, electric motor production plants, ore refining facilities, tool manufacturers, metal and wire products manufacturers, steel mills, a lead battery recycling facility, indoor and outdoor firing ranges, nuclear fuel rod manufacturing plants, gasoline stations, dry cleaners, office parks, strip malls, agricultural facilities, pesticide/herbicide sites, a radioactive healthcare products manufacturing facility, pharmaceutical manufacturers, rail lines and railroad maintenance facilities, concrete and refractory manufacturers, and RCRA waste treatment, storage and disposal facilities (TSDFs).
Prior to joining SCS in 1985, Mr. Marshall spent three years with the U.S. Army Chemical Research and Development Center at the Aberdeen Proving Ground, MD. Responsibilities included the design of handling, treatment, storage, transportation, and disposal systems for the many hazardous substances (e.g., nerve gas and precursors) used and wastes generated at DOD chemical manufacturing facilities. Mr. Marshall also assisted in the preparation of NEPA Environmental Impact Statements for various chemical production facilities.
Contact Jeff at 571-353-2016 or
