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.

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Mr. McCarron, PE, is a Vice President of SCS Engineers and our National Expert on Organics. He has over 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.

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    • Greg McCarron, PE, is a Vice President of SCS Engineers and our National Expert on Organics. He has over 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

Jeff Marshall
Jeff Marshall
Vice President/Project Director/National Expert on Emerging Contaminants and on Innovative Technologies
O. (571) 353-2016

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.

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    • 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

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Jonathan Meronek, IGP-TOR, QISP, ENV-SP, CPESC, QSP/D, is our National Expert on Stormwater. He is a State of California Industrial General Permit (IGP) Qualified Industrial Storm Water Practitioner (QISP) and QISP Trainer-of-Record (ToR). He specializes in comprehensive stormwater management programs. Under the 2015 IGP, he has performed Site BMP and Pollutant Source Assessments (PSAs), written and reviewed Stormwater Pollution Prevention Plans (SWPPPs), and implemented Monitoring Implementation Plans (MIPs) for hundreds of facilities throughout California.

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    • Jonathan Meronek, IGP-TOR, QISP, ENV-SP, CPESC, QSP/D, is our National Expert on Stormwater. He is a State of California Industrial General Permit (IGP) Qualified Industrial Storm Water Practitioner (QISP) and QISP Trainer-of-Record (ToR). He specializes in comprehensive stormwater management programs. Under the 2015 IGP, he has performed Site BMP and Pollutant Source Assessments (PSAs), written and reviewed Stormwater Pollution Prevention Plans (SWPPPs), and implemented Monitoring Implementation Plans (MIPs) for hundreds of facilities throughout California.
      California. He has developed cost-effective stormwater management solutions under the National Pollutant Discharge Elimination System (NPDES) for state, municipal, and private clients across a vast cross-section of industrial sectors, including recycling (metal and scrap), material recovery facilities (MRFs), landfills (including Subchapter N/ELG facilities), compost facilities, deep ocean ports, haulers and transportation facilities, asphalt batch plants, CalTrans sites, construction material facilities, petroleum bulk plants, landfill gas-to-energy (LFGE) plants, quarries, concrete and rebar manufacturers, lumber facilities, and breweries and wineries (including the fifth largest Case and Fulfilment Center in North America).
      Mr. Meronek has successfully worked with LRPs, facility managers, and attorneys to comprehensively reevaluate facilities for NPDES compliance using technology-based BPT/BCT/BAT implementation for control of pollutants in storm water discharge.
      Mr. Meronek has over 15 years of experience in the Information Technology sector, primarily as a Project Network Engineer and Systems Analyst, and 12 years of experience with Geographic Information Systems (GIS) utilization, mapping, spatial analysis, and cross-platform software and data applications. He used his Network and IT systems skills to transition successfully to Environmental Services by developing additional experience in a variety of environmental compliance tasks, including Phase I Environmental Site Assessments (ESAs), North Coast Regional Water Quality Control Board (NCRWQCB) reporting, and other state-wide environmental services and solid waste projects, including providing technical expertise for several Northern California water quality/storm water projects governed by the California Storm IGP, Construction General Permit (CGP), and Caltrans Statewide General Permit (CSGP), and preparation of reports, implementation plans, technical papers, proposals, presentations, GIS application strategies, and detailed project deliverables.
      Contact Jonathan at (707) 546-9461 or

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Mr. McLaughlin, PE, JD, is SCS Engineers’ Senior Vice President of Environmental Services and our National Specialist on Brownfields & Landfill Redevelopment. He is a licensed engineer and attorney with over 40 years of professional experience providing advice on environmental matters. He is an expert on environmental compliance, remediation, and allocation of response costs. He is also a member of the Board of Governors of the Virginia State Bar Environmental Law Section, and Budget Officer of the American Bar Association’s Section of Environment, Energy and Resources (ABA SEER).

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    • Mr. McLaughlin, PE, JD, is SCS Engineers’ Senior Vice President of Environmental Services and our National Specialist on Brownfields & Landfill Redevelopment. He is a licensed engineer and attorney with over 40 years of professional experience providing advice on environmental matters. He is an expert on environmental compliance, remediation, and allocation of response costs. He is also a member of the Board of Governors of the Virginia State Bar Environmental Law Section, and Budget Officer of the American Bar Association’s Section of Environment, Energy and Resources (ABA SEER).
      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

Mike Miller, CHMM, is a Senior Vice President and our National Expert on Environmental Due Diligence. He has a wide variety of experience in the environmental management and consulting field in both the private and federal sectors. Mike oversees many environmental projects across the region and coordinates environmental due diligence projects nationally including transactional due diligence, M&A due diligence, brownfield assessment and redevelopment, environmental compliance consulting, environmental permitting, and environmental remediation. His environmental background includes assessment of common special concerns related to redevelopment projects specifically, asbestos, lead-based paint, Poly-chlorinated biphenyls (PCBs), Underground Storage Tanks (UST) and overall risk mitigation, monitoring and management.

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    • Mike Miller, CHMM, is a Senior Vice President and our National Expert on Environmental Due Diligence. He has a wide variety of experience in the environmental management and consulting field in both the private and federal sectors. Mike oversees many environmental projects across the region and coordinates environmental due diligence projects nationally including transactional due diligence, M&A due diligence, brownfield assessment and redevelopment, environmental compliance consulting, environmental permitting, and environmental remediation. His environmental background includes assessment of common special concerns related to redevelopment projects specifically, asbestos, lead-based paint, Poly-chlorinated biphenyls (PCBs), Underground Storage Tanks (UST) and overall risk mitigation, monitoring and management.
      Mike provides environmental management and consulting to the private and federal sectors and develops and implements environmental health & safety (EH&S) programs and solutions at industrial facilities in the agricultural processing, chemical processing, distribution/transportation, metals, and pharmaceutical manufacturing sectors.
      Prior to joining SCS, Mr. Miller was responsible for providing environmental compliance support to Postal Service facilities in 15 Western U.S. states. In this capacity, he forecasted, negotiated, and managed an annual budget of $5,000,000. He effectively communicated environmental liabilities to senior management with regard to ongoing operations and planned capital projects, identified compliance alternatives and/or corrective actions to mitigate risk, and monitored implementation of necessary actions. Specific environmental activities included asbestos, lead-based paint, and radon gas management, underground storage tank management, environmental auditing, spill planning, stormwater management, and other regulatory compliance activities.
      Mr. Miller has also served as an environmental consultant in Omaha, Nebraska where he provided a wide array of EH&S services to various industrial clients throughout the Midwest.
      Contact Mike at 402-884-6202 or .

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Monte Markley
Vice President/Project Director/National Expert on Deep Well and Underground Injection Control
O. (316) 315-4501

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.

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    • 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