Staff

Erin Abel is a Project Manager with experience in environmental services.

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    • Erin Abel is a Project Manager with experience in environmental services.

Tony Aguilar is a project manager in our Field Services Operations, Maintenance and Monitoring (OM&M) Division. He is located in the Los Angeles/Ventura area.

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    • Mr. Aguilar is a project manager in our Field Services Operations, Maintenance and Monitoring (OM&M) Division. He is located in the Los Angeles/Ventura area.

Ms. Aguirre works with various permitting mechanisms, including New Source Review (NSR) permits, permits-by-rule (PBR), and standard permits. She prepares various engineering plans, calculations, surveys, and air compliance and permitting applications and is experienced with Civil3D software to assist in CAD design.

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    • Ms. Aguirre is responsible for assisting with preparation of various engineering plans, calculations, surveys, and air compliance and permitting applications. She also has experience with Civil3D software to assist in CAD design. Ms. Aguirre works with various permitting mechanisms, including New Source Review (NSR) permits, permits-by-rule (PBR), and standard permits. Her experience includes multiple air permitting projects through the “standard permit” and PBR mechanisms; assisting with emissions calculations, preparing site layout maps, completing requisite forms, and regulatory compliance. Additional experience includes Title V operating permits and greenhouse gas reporting projects, as required by U.S. EPA rules. In this capacity, she has in-depth familiarity with the New Source Performance Standards (NSPS) and National Emissions Standards for Hazardous Air Pollutants (NESHAPS) program under 40 CFR 61 and 63; Title V compliance reporting; and emissions inventory reporting. She assists with NSPS Tier 2 sampling and analysis reports.

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Ray Al Ayass is a Project Manager for our O&M Division. He is responsible for the operations and maintenance of a client’s landfill gas collection and control system as well as the liquids management system. He also manages construction activities and upgrades to the gas system and main headers, and is responsible for the flare station maintenance and modifications.

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    • He has two decades of experience in LFG control and recovery, including flare construction, GCCS construction, non-routine repair, and emergency call-out response. He is responsible for the operations and maintenance of a large landfill’s site gas collection and control system as well as the liquid management system. He oversees many phases of project construction, including development, management, and oversight of field construction, and for preparation and installation of extraction wells, monitoring wells, condensate collection, containment facilities, leachate control and disposal facilities, and blower/flare stations.
      Prior experience includes process hazard identification and loss prevention engineering for oil & gas projects.

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Laila Al-Khalaf, EIT, provides engineering support services for design, permitting, site inspection, and reporting for solid waste engineering and landfill gas all around the southeast region of the United States. She has a Master’s degree in Environmental Engineering

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    • Ms. Al-Khalaf provides engineering support services for design, permitting, site inspection, and reporting for solid waste engineering and landfill gas all around the southeast region.
      Prior to joining SCS, she was a project engineer at a civil firm focused on land development, including permitting, site layout design, and wastewater, water and stormwater design.

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Erik Anderson
Erik Anderson
Senior Project Manager/National Expert on Anaerobic Digestion
Minneapolis, MN
National Expert on Anaerobic Digestion
O. (920) 915-8580

Dr. Erik Anderson is a Senior Project Manager for our Energy division and our National Expert on Anaerobic Digestion. He is experienced in engineering and process design in the renewable fuels sector, including anaerobic digestion, pyrolysis to syn-gas generation, and zero-liquid discharge technologies. He has conducted on projects from initial concept development through front-end engineering design and construction management. His experience includes modeling of renewable energy technologies for economic comparison or life-cycle analysis. He has several U.S. patents related to bio energy.

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    • Dr. Erik Anderson is a Senior Project Manager for our Energy division and our National Expert on Anaerobic Digestion. He is experienced in engineering and process design in the renewable fuels sector, including anaerobic digestion, pyrolysis to syn-gas generation, and zero-liquid discharge technologies. He has conducted on projects from initial concept development through front-end engineering design and construction management. His experience includes modeling of renewable energy technologies for economic comparison or life-cycle analysis.
      Erik is named inventor on several U.S. patents related to bio energy and served as commissioner on the National Biodiesel Accreditation Committee from 2014-2021.
      Contact Erik at 920-915-8580 or

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Rob Andrews has nearly 15 years of experience as an environmental professional and is experienced in operation, monitoring, and maintenance (OM&M) of landfill gas (LFG) systems and field activities related to liquids and gas sampling and monitoring. He provides LFG well monitoring, extraction well balancing and adjustment, blower/flare station data collection and adjustment/maintenance, condensate system/sump maintenance, groundwater well monitoring and sampling and database management. Rob performs non-routine scheduled repairs and emergency call responses (leaks, well extensions, pipe repairs, etc.), and he as provides maintenance and repairs on extraction pumps, pneumatic condensate injection pumps, pneumatic condensate sump pumps, air compressors and electrical components. He troubleshoots complex problems associated with LFG collection, flaring and detection systems.

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    • Rob Andrews has nearly 15 years of experience as an environmental professional and is experienced in operation, monitoring, and maintenance (OM&M) of landfill gas (LFG) systems and field activities related to liquids and gas sampling and monitoring. He provides LFG well monitoring, extraction well balancing and adjustment, blower/flare station data collection and adjustment/maintenance, condensate system/sump maintenance, groundwater well monitoring and sampling and database management. Rob performs non-routine scheduled repairs and emergency call responses (leaks, well extensions, pipe repairs, etc.), and he as provides maintenance and repairs on extraction pumps, pneumatic condensate injection pumps, pneumatic condensate sump pumps, air compressors and electrical components. He troubleshoots complex problems associated with LFG collection, flaring and detection systems.

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Ms. Andrews has been working in the environmental consulting and environmental education fields since 2001. Her experience as an environmental scientist and sampler covers a variety of projects sites, including industrial hazardous waste facilities, petroleum impacted sites, and landfills. Her project experience includes soil and groundwater sampling using a variety of methods, including low-flow purge sampling, CQA for well installations and abandonments, remediation system installation and removal, remediation system operations and maintenance, site assessment, and tank cleaning and inspection.

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    • Ms. Andrews has been working in the environmental consulting and environmental education fields since 2001. Her experience as an environmental scientist and sampler covers a variety of projects sites, including industrial hazardous waste facilities, petroleum impacted sites, and landfills. Her project experience includes soil and groundwater sampling using a variety of methods, including low-flow purge sampling, CQA for well installations and abandonments, remediation system installation and removal, remediation system operations and maintenance, site assessment, and tank cleaning and inspection.
      Ms. Andrews is the lead environmental sampler and field coordinator for the SCS Portland office’s portfolio of landfill and storm water environmental monitoring projects. She also performs Phase I environmental site assessments and analytical data management.

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Ms. Apolinar is a Project Professional responsible for providing environmental support for projects in the Mid-Atlantic and New England regions. She has 8 years of experience using ESRI GIS products as well as experience using open-source QGIS software. Since joining SCS in June 2018, she has completed Phase I Environmental Site Assessments (ESAs), HUD-level environmental assessments (EAs), tank decommissions, remediation assistance, and other environmental projects for municipal and private clients.

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    • Ms. Apolinar is a Project Professional responsible for providing environmental support for projects in the Mid-Atlantic and New England regions. She has 8 years of experience using ESRI GIS products as well as experience using open-source QGIS software. Since joining SCS in June 2018, she has completed Phase I Environmental Site Assessments (ESAs), HUD-level environmental assessments (EAs), tank decommissions, remediation assistance, and other environmental projects for municipal and private clients.

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Jon Archibald, PE, is a Project Director with over 25 years of experience. He has strong expertise in the leadership of multidisciplinary design teams, storm water facility design, site civil engineering, and capital project execution. Jon has served clients in the solid waste, municipal, aviation, military, high tech, hydroelectric, and flood risk sectors.

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    • Jon Archibald, PE, is a Project Director with over 25 years of experience. He has strong expertise in the leadership of multidisciplinary design teams, storm water facility design, site civil engineering, and capital project execution. Jon has served clients in the solid waste, municipal, aviation, military, high tech, hydroelectric, and flood risk sectors.
      He successfully delivered several capital programs as a public works project manager for the City of Oregon City, OR. He has also assisted public agencies as an owner’s engineer. His combination of public and private experience helps foster collaboration on challenging design and permitting efforts.
      Jon has delivered dozens of successful civil and water resource projects in the Pacific Northwest, California, and Alaska. Projects have included site civil infrastructure, private and public utility design, hydrologic and hydraulic modeling studies, and design and accreditation of flood control systems.

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Mr. Ard is experienced in landfill gas collection system design, construction-phase services, and air and solid waste permitting. He specializes in Clean Air Act compliance for landfills and landfill gas collection and control system design. He has assisted with the preparation of several landfill permit modifications and gas collection and control system (GCCS) design plans. Mr. Ard has conducted air-related projects in Texas, Louisiana, and New Mexico.

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    • Mr. Ard is experienced in landfill gas collection system design, construction-phase services, and air and solid waste permitting. Experience includes NSPS, Title V, GCCS, and solid waste permitting. He specializes in Clean Air Act compliance for landfills and landfill gas collection and control system design. He has assisted with the preparation of several landfill permit modifications and gas collection and control system (GCCS) design plans. Mr. Ard has conducted air-related projects in Texas, Louisiana, and New Mexico.

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Kenneth Armentrout
Kenneth Armentrout
Project Director and National Expert on Transfer Stations
Winchester, VA
National Expert: Transfer Stations
O. (571) 353-2001

Ken Armentrout, PE, is a Project Director and our National Expert for Transfer Stations. He is a project engineer for a variety of engineering projects involving transfer stations, household hazardous wastes, stormwater management, landfill, LFG and LFG-to-energy, and aerated static pile composting facilities. He is a licensed Professional Engineer in Virginia.

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    • Mr. Armentrout, PE, is a Project Director and our National Expert for Transfer Stations. He is a project engineer with experience on a wide variety of engineering projects involving transfer stations, household hazardous wastes, stormwater management, landfill, LFG and LFG-to-energy, and aerated static pile composting facilities. He is a licensed Professional Engineer in Virginia. Mr. Armentrout is also a SWANA accredited Technical Associate for the Managing Transfer Stations course.
      Ken may be reached at 571-353-2001 or

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Trent Arney, PE, provides solid waste management services for numerous sites, with an emphasis on Hillsborough Southeast County Landfill in Florida. He also is involved in the Organics Management initiative and has completed numerous trainings and presentations on the topic. His primary services include solid waste permitting, cost assessment, field data collection and evaluation, landfill liquid assessment and monitoring, stormwater permitting review, assistance, application, landfill cell and closure design, and composting education.

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    • Trent Arney, PE, provides solid waste management services for numerous sites, with an emphasis on Hillsborough Southeast County Landfill in Florida. He also is involved in the Organics Management initiative and has completed numerous trainings and presentations on the topic. His primary services include solid waste permitting, cost assessment, field data collection and evaluation, landfill liquid assessment and monitoring, stormwater permitting review, assistance, application, landfill cell and closure design, and composting education.

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Jeffrey Arrington, PE, is a project manager with over 30 years of broad-based engineering experience in Texas, including over 20 years of solid waste planning, permitting, design and construction management.

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    • Mr. Arrington is a professional engineer and project manager with over 30 years of broad-based engineering experience in Texas, including over 20 years of solid waste planning, permitting, design and construction management. Mr. Arrington’s solid waste projects include citizen convenience centers, transfer stations, landfills, composting facilities and solid waste processing facilities. He also has significant experience in preparation of plans and specifications for citizen convenience centers and transfer stations, as well as landfill cell construction, drainage structures, roads utilities and waste processing and recycling facilities. Mr. Arrington has participated in the preparation of numerous solid waste plans in Texas and has supervised personnel involved in all areas of solid waste management from planning, site work and design to construction administration. Mr. Arrington also has extensive experience working with the TCEQ and USEPA on solid waste permitting projects.

Ms. Aumann is a Project Professional in our southeast region. She is experienced in implementing and providing GIS support services for a variety of projects in environmental services and landfill gas and design practices to the southeast region and nationwide. Brooke’s specialty is streamlining workflows and development of tools through GIS to provide efficiency and enhance decision making processes. Responsibilities include data management, data creation, spatial analysis, data research and collection, map production, GPS data collection, and creating web based maps and applications.

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    • Ms. Aumann is a Project Professional in our southeast region. She is experienced in implementing and providing GIS support services for a variety of projects in environmental services and landfill gas and design practices to the southeast region and nationwide. Brooke’s specialty is streamlining workflows and development of tools through GIS to provide efficiency and enhance decision making processes. Responsibilities include data management, data creation, spatial analysis, data research and collection, map production, GPS data collection, and creating web based maps and applications. Projects experience includes feasibility studies, land use and transportation planning, Phase I and II environmental site assessments, remedial action plans, facility siting studies, permitting, design, and construction services.

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Carol Austin, GIT, is an experienced environmental compliance coordinator with expertise in environmental planning and assessments. She has over a decade of experience conducting subsurface soil and groundwater investigations for Phase I/II Environmental Site Assessments, preparation and implementation of NPDES and BPM plans, implementation of Title V permit and MACT compliance requirements and testing, preparation of groundwater contour and flow maps, compliance sampling, and subsurface investigations.

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    • Carol Austin, GIT, is an experienced environmental compliance coordinator with expertise in environmental planning and assessments. She has over a decade of experience conducting subsurface soil and groundwater investigations for Phase I/II Environmental Site Assessments, preparation and implementation of NPDES and BPM plans, implementation of Title V permit and MACT compliance requirements and testing, preparation of groundwater contour and flow maps, compliance sampling, and subsurface investigations.
      She has been involved with hundreds of subsurface investigations involving petroleum products, metals, pesticides, and polychlorinated biphenyls in Alabama, Florida, Georgia, North Carolina and South Carolina.
      Additional experience includes compliance activities for 15 sawmills including Title V reporting, testing and renewal; MACT reporting, testing and renewal; NPDES sampling, reporting and renewal; BMP documentation, reporting and renewal; and sustainability development and planning.

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Ms. Baide is a Project Manager with nearly 20 years of engineering experience, including engineering evaluations and studies, database management, project management, planning, coordination with subconsultants and clients, bidding services and overseeing construction activities, field sampling, field evaluations, permitting, and utility coordination. Her experience includes environmental oversight activities at construction projects, preparing Stormwater Pollution Prevention Plans (SWPPP), and conducting audits as part of Environmental Management System.

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    • Ms. Baide is a Project Manager with nearly 20 years of engineering experience, including engineering evaluations and studies, database management, project management, planning, coordination with subconsultants and clients, bidding services and overseeing construction activities, field sampling, field evaluations, permitting, and utility coordination. Ms. Baide has prepared remedial action work plans for the submission to state and regional regulatory agencies in Florida. She has conducted environmental site assessments and is experienced with regulatory policies and reporting requirements.
      Ms. Baide has been involved in several Miami International Airport projects conducting environmental oversight activities at various construction projects, participating in the preparation of the Stormwater Pollution Prevention Plan (SWPPP) and conducting internal audits as part of the Environmental Management System. She has prepared reports for submission to environmental regulatory agencies including Groundwater Monitoring Only Reports, Erosion and Sediment Control Plans, Contamination and/or Site Assessment Reports. She has conducted and overseen underground storage tank removals and source removals.

Brooks Ballentine is a Vice President of Software Development. He is responsible for the design, construction, and maintenance of web and mobile software applications, data analytics, and customer integrations.

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    • Brooks Ballentine is a Vice President of Software Development. He is responsible for the design, construction, and maintenance of web and mobile software applications, data analytics, and customer integrations.

Kokil Bansal, PE, is experienced in a wide variety of environmental engineering, gas monitoring, remediation, and mercury compliance projects, including construction oversight, groundwater and landfill gas monitoring, stack testing and client relations. She is a licensed Professional Engineer in Florida. She has a Bachelor’s degree in Chemical Engineering and her Master’s in Environmental Engineering.

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    • Kokil Bansal, PE, is experienced in a wide variety of environmental engineering, gas monitoring, remediation, and mercury compliance projects, including construction oversight, groundwater and landfill gas monitoring, stack testing and client relations. She is a licensed Professional Engineer in Florida. She has a Bachelor’s degree in Chemical Engineering and her Master’s in Environmental Engineering.
      Ms. Bansal has closely worked with client groups in site development, utility sector and cement plants.

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Don Barfield, LEED AP, has nearly two decades of experience as an environmental and sustainability consultant. He has performed over 2,000 environmental site assessments throughout the United States and internationally, including Brownfield Assessments, Phase I & II Environmental Site Assessments, and RCRA Site Assessments and Closure Plans. His experience includes managing numerous due diligence and risk reviews for large acquisitions or mergers within and outside the U.S. He is a LEED Accredited Professional.

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    • Experience includes assessing and developing closure plans for RCRA Regulated Units; removing, assessing, and remediating underground and aboveground storage tanks; brownfield redevelopment; and NEPA and Phase I ESA projects for telecommunications facilities. He has performed and coordinated large (greater than 20,000 acres) environmental site assessments, which included Phase I and II ESAs, wildlife studies, wetland delineations, and archaeological assessments.

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Mr. Barham is SCS’s Senior Vice President of Construction Services. He is a licensed contractor in 15 states, a member of the Virginia and District of Columbia bars, and has served as an adjunct professor in the Department of Civil Engineering at the University of Maryland for over 30 years. He holds a Bachelor of Science in Building Construction from Virginia Tech and a Juris Doctorate (with honors) from George Washington University. He has over 35 years of experience in the construction industry.

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    • Mr. Barham is SCS’s Senior Vice President of Construction Services. He is a licensed contractor in 15 states, a member of the Virginia and District of Columbia bars, and has served as an adjunct professor in the Department of Civil Engineering at the University of Maryland for over 30 years. He holds a Bachelor of Science in Building Construction from Virginia Tech and a Juris Doctorate (with honors) from George Washington University. He has over 35 years of experience in the construction industry.
      Mr. Barham provides SCS Field Services with expertise in construction management, including procurement, scheduling, budgeting, and estimating, as well as other contract formation and administration activities.
      Mr. Barham has directed several full service (design/build) projects and has been involved in numerous projects such as Landfill Gas (LFG) collection systems (blower/flare stations, extraction wells, horizontal collection trenches, header lines, and condensate collecting/containment systems); groundwater pump and treat systems (stripping towers, recharge galleries, groundwater wells, deep recharge wells, collection/distribution piping, and pump stations); bio-treatment facilities (containment areas, moisture/nutrient application, and soil mixing); underground storage tanks (excavation, testing, triple rinse, and restoration); soil vapor extraction systems (cat/ox treatment facilities, vapor extraction wells, collection header lines, and air make-up wells).
      Prior to joining SCS Field Services, Mr. Barham served as a construction manager for a major general contractor on large hospital and institutional building construction projects.

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Alissa Barrow, PE, QISP, is an experienced as an environmental engineer specializing in the environmental assessment of properties. Her experience includes Phase I Environmental Site Assessments (ESAs) and subsurface investigations assessing constituents of concerns in property transactions for investors, developers, redevelopment agencies, and cities. She is a Professional Engineer licensed in California and a Qualified Industrial Stormwater Practitioner (QISP).

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    • Ms. Barrow is an experienced as an environmental engineer specializing in the environmental assessment, remediation, and compliance. She is a Professional Engineer licensed in California and a Qualified Industrial Stormwater Practitioner (QISP).
      Her experience includes Phase I Environmental Site Assessments (ESAs) and subsurface investigations assessing constituents of concerns in property transactions for investors, developers, redevelopment agencies, and cities.
      She has experience assessing and remediating properties with soil, soil vapor, and groundwater impacted by petroleum hydrocarbons, chlorinated solvents, heavy metals, and pesticides. After a thorough collection and analysis of data, she prepares technical documents that accurately describe environmental conditions and conform to regulatory agency guidelines. She has written VIRAs, Groundwater Monitoring Reports, Corrective Action Plans (CAPs), Property Mitigation Plans, Soil Management Plans, and Property Closure Reports for many regulatory-driven projects. She has successfully managed many complex site investigations, remediation, and construction projects.

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Mr. Basconi is a Project Manager with over 15 years of experience involving landfill gas (LFG) collection and control system (GCCS) operation, monitoring, and maintenance (OM&M). This includes LFG well field monitoring and adjustment, surface emissions monitoring (SEM), de-watering pump OM&M, extraction system troubleshooting and repair, blower/flare station OM&M, and GCCS expansion and construction.

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    • Mr. Basconi is a Project Manager with over 15 years of experience involving landfill gas (LFG) collection and control system (GCCS) operation, monitoring, and maintenance (OM&M). This includes LFG well field monitoring and adjustment, surface emissions monitoring (SEM), de-watering pump OM&M, extraction system troubleshooting and repair, blower/flare station OM&M, and GCCS expansion and construction.
      Mr. Basconi has performed Project Management duties for numerous municipalities and private clients in the northeast and Florida, such as Orlando Utilities Commission, Miami-Dade County, Waste Management, Fortistar Methane Group, Republic Services and Waste Connections, Inc.

Mr. Bass is a Senior Project Manager nearly 20 years of experience in the operation, maintenance, and monitoring of landfill gas (LFG), leachate, and groundwater treatment systems. His experience includes operating and maintaining LFG environmental control systems to meet Bay Area and Central Valley APCD, Title V, and state regulations and requirements.

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    • Mr. Bass is a Senior Project Manager with over 20 years of experience in the operation, maintenance, and monitoring of landfill gas (LFG), leachate, and groundwater treatment systems. His experience includes operating and maintaining LFG environmental control systems to meet Bay Area and Central Valley APCD, Title V, and state regulations and requirements. He has also been involved in the implementation of necessary routine and non-routine repairs and maintenance required to keep systems operational and in compliance with various prescribed operating parameters and goals. He has performed, supervised, and/or assisted in required maintenance and repairs, and has interacted and/or managed subcontractors and vendors needed to assist with maintenance of the systems. He is also responsible for preparing monthly reports, invoicing, recording field observations, and recommending repairs or other system modifications.

Donna Beares, PG, is a Senior Project Manager with nearly two decades of experience in environmental engineering and consulting. Her experience includes environmental due diligence, hazardous waste assessments, site characterization studies, and multimedia environmental site assessment. She also conducts groundwater sampling, soil classification and sampling, soil vapor sampling, and site inspections.

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    • Donna Beares, PG, is a Senior Project Manager with nearly two decades in environmental engineering and consulting. Her experience includes environmental due diligence, hazardous waste assessments, site characterization studies, and multimedia environmental site assessment. She also conducts groundwater sampling, soil classification and sampling, soil vapor sampling, and site inspections.

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