National Experts

SCS professionals are active in, and leaders of industry and professional associations. We organize and participate in workshops and conferences, author and present technical papers, conduct research, and participate in national and state-level legislative and rule-making processes and regulatory policy. Our engineers, environmental consultants, and scientists work in close coordination on environmental solutions.

Search by last name or simply browse the list below.

Search staff by name
Search Result

Mr. McCarron, PE, is a Vice President of SCS Engineers and our National Expert on Organics Management. He has nearly 35 years of progressively responsible experience in solid waste management, including waste composition studies, solid waste planning, composting, recycling, transfer stations, waste-to-energy systems, landfill design, and landfill gas systems. His expertise is in the design, permit, construction, and operation compost systems and facilities for public and private clients.

INFO
    • Greg McCarron, PE, is a Vice President of SCS Engineers and our National Expert on Organics Management. He has nearly 35 years of progressively responsible experience in solid waste management, including composting, landfill gas (LFG) systems, landfill design, waste composition studies, recycling, transfer stations, and waste-to-energy systems. He is our national expert is in the design, permit, construction, and operation compost systems and facilities for public and private clients.
      His experience includes project management, design, regulatory support, construction oversight, system start-up, economic analysis, and technology assessment.
      Mr. McCarron’s experience also includes operations, project management, design, permitting, regulatory support, construction oversight, system start-up, economic analysis, and technology assessment.
      Contact Greg at 845-357-1052 or

      See Full Resume

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 in Innovative Technologies. He is a licensed professional engineer in Virginia, Maryland, West Virginia, North Carolina and South Carolina. His over 38 years 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.

INFO
    • 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 in Innovative Technologies. He is a licensed professional engineer in Virginia, Maryland, West Virginia, North Carolina and South Carolina. His over 38 years 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.
      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

      See Full Resume

Mr. McLaughlin, PE, is SCS Engineers’ Senior Vice President of Environmental Services and our National Specialist on Brownfields & Landfill Redevelopment and Electric Utilities. He is a licensed engineer and attorney with over 30 years of professional experience providing advice on environmental matters. He is an expert on environmental compliance, remediation, and allocation of response costs.

INFO
    • Mike McLaughlin, PE, is SCS Engineers’ Senior Vice President of Environmental Services and our National Specialist on Brownfields & Landfill Redevelopment and Electric Utilities. He is a licensed engineer and attorney with over 30 years of professional experience providing advice on environmental matters. He is an expert on environmental compliance, remediation, and allocation of response costs.
      Mr. McLaughlin advises developers, contractors, lenders and land development professionals on the technical and regulatory requirements for construction on Brownfields sites nationwide. His combined engineering and legal background provides an unusual perspective on land development where hazardous wastes or other environmental challenges are present. Redevelopment of closed landfills is an area of special interest; he worked on his first such project in 1976.
      In addition to his extensive Brownfields redevelopment experience in North America, Mr. McLaughlin has worked at some three dozen Superfund National Priorities List sites in 17 states, and on scores of regulatory compliance, voluntary cleanup, and remediation projects for commercial, industrial, municipal, and military clients. He is also well-versed in liquids management.
      He is a licensed professional engineer in Virginia and New Mexico, a member of the Virginia Bar, and active in the American Bar Association (Section of Environment, Energy and Resources and Waste Management Committee), the Virginia State Bar Environmental Law Section, and the Urban Land Institute.
      Contact Mike at 571-353-2002 or

      See Full Resume

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.

INFO
    • 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

      See Full Resume