Staff

Tim Buelow, PE, has over 30 years of experience in environmental consulting working primarily with landfill and environmental projects. His experience includes compliance solutions related to groundwater impact, landfill gas migration, and leachate management; soil and groundwater assessment and remedial system design associated with landfill and petroleum contaminant releases; and source identification and responsible party review associated with contaminated sites.

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    • Tim Buelow, PE, has over 30 years of experience in environmental consulting working primarily with landfill and environmental projects. His experience includes compliance solutions related to groundwater impact, landfill gas migration, and leachate management; soil and groundwater assessment and remedial system design associated with landfill and petroleum contaminant releases; and source identification and responsible party review associated with contaminated sites.

Sowmya Bulusu, PE, is a Vice President with over 17 years of experience as a project manager and design engineer for numerous landfill, environmental, and civil engineering projects. Her work focuses on waste disposal facility siting, design, permitting, and construction; design, permitting, and construction of landfill gas collection and utilization systems; landfill gas collection system operation and monitoring and air permitting and compliance; renewable energy projects; and construction management.

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    • Sowmya Bulusu, PE, is a Vice President with over 15 years of experience as a project manager and design engineer for numerous landfill, environmental, and civil engineering projects. Her work focuses on waste disposal facility siting, design, permitting, and construction; design, permitting, and construction of landfill gas collection and utilization systems; landfill gas collection system operation and monitoring and air permitting and compliance; renewable energy projects; and construction management.
      Ms. Bulusu has served as the project manager and engineer of record on numerous landfill and landfill gas permit applications and construction drawing preparations for municipal solid waste, construction and demolition waste, and inert landfills. She has performed professional duties and served as the engineer of record on several projects involving design, construction, operation, and maintenance of landfills gas collection and control systems (GCCS) for municipal solid waste landfills; GCCS construction quality assurance (CQA); investigation and analysis of GCCS operation and performance; evaluation of the feasibility of landfill-gas-to-energy (LFGTE) projects; and landfill air permitting and compliance reporting projects.

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Ms. Burdier performs landfill and waste processing facility permitting and compliance projects. She works on solid waste permit applications, groundwater monitoring plans, construction quality assurance reports, landfill design, recycled screen material sampling, and slope stability analysis.

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    • Ms. Burdier performs landfill and waste processing facility permitting and compliance projects. She works on solid waste permit applications, groundwater monitoring plans, construction quality assurance reports, landfill design, recycled screen material sampling, and slope stability analysis. Prior to joining SCS Engineers, she was a graduate research assistant and worked with construction and demolition debris (CDD) recyclers located around the U.S. to study alternative markets for recycled screen material and other CDD materials.

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Natalie Burris, PG, is an experienced environmental geologist and hydrogeologist. Her project work experience includes development and review of comprehensive investigation and remedial work plans and reports; performing Phase 1 and Phase 2 Environmental Site Assessments; conducting groundwater monitoring sampling, reporting, and statistical analyses; investigations of drycleaner and orphan sites; technical assistance for groundwater modeling projects; quality assurance; aquifer testing; vapor intrusion sampling; and field investigations. Natalie currently works on groundwater monitoring and reporting for coal combustion residual and municipal landfill projects.

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    • Natalie Burris, PG, is an experienced environmental geologist and hydrogeologist. Her project work experience includes development and review of comprehensive investigation and remedial work plans and reports; performing Phase 1 and Phase 2 Environmental Site Assessments; conducting groundwater monitoring sampling, reporting, and statistical analyses; investigations of drycleaner and orphan sites; technical assistance for groundwater modeling projects; quality assurance; aquifer testing; vapor intrusion sampling; and field investigations. Natalie currently works on groundwater monitoring and reporting for coal combustion residual and municipal landfill projects.
      Previous experience includes working for the Kansas Department of Health & Environment (KDHE)-Bureau of Environmental Remediation as a project manager, providing technical and administrative oversite of projects in the State Cooperative Program.

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Mr. Butler has decades of experience in landfill gas systems, industrial waste remediation, hazardous waste remediation and methane gas recovery construction. His background includes estimating, scheduling, quality control and project management.

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    • Mr. Butler has decades of experience in landfill gas systems, industrial waste remediation, hazardous waste remediation and methane gas recovery construction. His background includes estimating, scheduling, quality control and project management. As regional manager, Mr. Butler’s project management responsibilities include scheduling, field staff supervision, cost control, and contract administration. He has completed projects encompassing numerous project scopes including landfill gas system installation and expansion, landfill gas migration remediation, landfill gas well drilling and installation, and leachate forcemain construction. These landfill gas projects include gas extraction well installation, collection header lines, high density polyethylene pipe fusion, polyvinyl chloride 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.

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Ms. Caesar is an air quality compliance professional responsible for various activities related to the solid waste and industrial air quality/greenhouse gas (GHG), with a focus on permitting and compliance support for solid waste facilities. She has experience in operations data management, compliance reporting, stationary source and Title V permit applications, GHG reporting and verification services, and acting as liaison between site owners and regulatory agencies.

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    • Ms. Caesar is an air quality compliance professional responsible for various activities related to the solid waste and industrial air quality/greenhouse gas (GHG), with a focus on permitting and compliance support for solid waste facilities. She has experience in operations data management, compliance reporting, stationary source and Title V permit applications, GHG reporting and verification services, and acting as liaison between site owners and regulatory agencies.

Mr. Calmes has nearly two decades of experience in landfill operations, monitoring, and maintenance.

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Mr. Campbell is responsible for development of programs, coordinating resources, and client satisfaction for our Environmental Services division. He conducts solid waste, hazardous waste, and environmental assessments; compliance audits; and other environmental projects for state, municipal and private clients. His experience includes feasibility studies, due diligence investigations, facility siting, site investigations, environmental studies, permitting, design, and construction services.

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    • Mr. Campbell is responsible for development of programs, coordinating resources, and client satisfaction for our Environmental Services division. He conducts solid waste, hazardous waste, and environmental assessments; compliance audits; and other environmental projects for state, municipal and private clients. His experience includes feasibility studies, due diligence investigations, facility siting, site investigations, environmental studies, permitting, design, and construction services.
      Facilities have included landfills, big box retail chains, retail petroleum facilities, transportation construction support.
      Addition experience includes waste composition studies, rate studies, compliance audits, site assessments, and preparation of various procurement documents.

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Jonathan Canon, GIT, has conducted a wide variety of environmental assessments, focusing on soil, groundwater, gas monitoring, gas management systems construction oversight, and health and safety compliance. His experience includes construction oversight, groundwater, landfill gas monitoring and extensive well installation oversight.

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    • Jonathan Canon, GIT, has conducted a wide variety of environmental assessments, focusing on soil, groundwater, gas monitoring, gas management systems construction oversight, and health and safety compliance. His experience includes construction oversight, groundwater, landfill gas monitoring and extensive well installation oversight.

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Mr. Carlyle is a Project Manager in our tracer division. He works in our Minnesota office.

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    • Mr. Carlyle is a Project Manager in our tracer division. He works in our Minnesota office.

Pete Carrico
Pete Carrico
Senior Vice President/Assistant Business Unit Director
Reston, VA
National Expert: Liquids Management
O. (571) 353-2034

Mr. Carrico is a Senior Vice President with over 35 years of experience with SCS Field Services (a division of SCS Engineers) in the operation, maintenance, and monitoring (OM&M) of landfill gas (LFG) management systems. This experience has ranged from hands-on, technical fieldwork to management of field teams performing routine and non-routine LFG system operations and maintenance. Mr. Carrico is also the Assistant Director of our OM&M Division.

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    • Mr. Carrico is a Senior Vice President with over 35 years of experience with SCS Field Services (a division of SCS Engineers) in the operation, maintenance, and monitoring (OM&M) of landfill gas (LFG) management systems. This experience has ranged from hands-on, technical fieldwork to management of field teams performing routine and non-routine LFG system operations and maintenance. Mr. Carrico has written and prepared site-specific O&M manuals, site assessment and investigation reports, and routine project status reports. Mr. Carrico is also the Assistant Director of our OM&M Division.
      As the Assistant Office Director for SCS Field Services’ Operation, Monitoring and Maintenance Business Unit, Mr. Carrico provides leadership and management of the Business Unit’s Eastern United States operations, including some 100 employees working on over 250 projects. These projects represent a variety of different LFG control and recovery systems for both regulatory compliance and energy use, including vertical and horizontal gas extraction, air injection, open and enclosed flaring systems, electronic gas detection systems, and remote LFG data collection. Mr. Carrico’s experience provides SCS-FS with a practical, hands-on management capability for a wide range of projects.
      His past projects include the Medley Landfill in Medley, FL; the Old Dominion and King and Queen Landfills near Richmond, VA; the East Carolina Landfill in Aulander, NC; the Prince William County Landfill near Manassas, VA; the Medina Landfill in Lawrenceville, VA; and the Stafford County Landfill in Stafford, VA. These projects represent a variety of different LFG control and recovery systems for both regulatory compliance and energy use, including vertical and horizontal gas extraction, air injection, open and enclosed flaring systems, electronic gas detection systems, and remote LFG data collection. Mr. Carrico’s experience provides SCS-FS with a practical, hands-on management capability for a wide range of projects.
      Concurrent with project management responsibilities, Mr. Carrico helped develop SCSeTools® for compiling, reporting, and using collected data for operations and investment. Other relevant experience has included conducting LFG training seminars for employees and clients, and participation as an instructor and presenter in LFG industry seminars and symposiums.
      Contact Pete at 571-353-2034 or

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Philip Carrillo
Philip Carrillo
Vice President/Director National Remote Monitoring Control
Huntington Beach, CA
National Expert: Remote Monitorin and Control... +
O. (562) 356-1058

Mr. Carrillo is a Vice President and the Director of our Remote Monitoring and Control (RMC) systems. He has two decades of experience in groundwater control and monitoring systems (GWCMS), water supply systems (WSS), solid waste and landfill gas (LFG) management, including remote monitoring, Supervisory Control and Data Acquisition (SCADA), control systems, and the operation and maintenance (O&M) of LFG collection and treatment systems (GCCS).

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    • Mr. Carrillo is a Vice President and the Director of SCS’s Remote Monitoring and Control (RMC) systems. He has two decades of experience in groundwater control and monitoring systems (GWCMS), water supply systems (WSS), solid waste and landfill gas (LFG) management, including remote monitoring, Supervisory Control and Data Acquisition (SCADA), control systems, and the operation and maintenance (O&M) of LFG collection and treatment systems (GCCS).
      Mr. Carrillo has managed all aspects of GCCS, including wellfields and flares, and LFG-to-energy (LFGE) controls, design, O&M, and construction management. His unique combination of field operations management experience and control systems technical expertise adds tremendous value to any SCS team assigned to an OM&M project.
      Mr. Carrillo has designed over 110 remote monitoring and SCADA systems that had comprehensive control logic (Programmable Logic Controllers [PLCs]) and Human Machine Interface (HMI) capabilities. He understands the complex issues that must be addressed to optimize LFG system performance and to maintain regulatory compliance. He has performed, installed, and repaired LFG control systems, and has been responsible for implementing upgrades to computer and communication systems vital to compliance management. This has included troubleshooting system components, coordinating with field technical personnel, interfacing with vendors and landfill operations personnel, ordering materials and equipment, and overseeing GCCS repairs and upgrades.
      Contact Phil at 562-356-1058 or

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Mr. Cartee is a Vice President of SCS Engineers and is a Regional Manager for our OM&M Division. He has over two decades of experience in landfill gas (LFG) system operations monitoring, maintenance, migration control and recovery projects, and NSPS compliance, and construction. Field responsibilities have included routine testing, monitoring, and maintenance; repair of LFG collection headers, extraction wells, and blower/flare facilities; and minor construction.

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    • Mr. Cartee is a Vice President of SCS Engineers and is a Regional Manager for our OM&M Division. He has over two decades of experience in landfill gas (LFG) system operations monitoring, maintenance, migration control and recovery projects, and NSPS compliance, and construction. Field responsibilities have included routine testing, monitoring, and maintenance; repair of LFG collection headers, extraction wells, and blower/flare facilities; and minor construction. Additionally, Mr. Cartee performs non-routine troubleshooting and repairs as well as emergency response services. As the Subregion Manager in the Carolinas, Mr. Cartee is routinely involved with work scope implementation, scheduling of field technicians, data review, interpretation, and assessment and coordination with the Engineers. Responsibilities have included development of computer databases, data entry, report preparation and review, Health & Safety Plan preparation and implementation, and providing support in regulatory compliance; i.e., compliance with Clean Air Act requirements and off-site migration regulations. Mr. Cartee’s construction background includes gas well installation; collection header line trenching and placement (both PVC and HDPE); and installation and startup of blowers, flares, pumps, and compressors. These experiences have included both construction of new and expanded systems and repair and renovation of existing systems.

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Louis Caruso, LG, LHG, has worked in the environmental sciences field since 1979 in a variety of research and private consulting roles. Mr. Caruso is a project director experienced in, and responsible for, conducting and managing geologic/hydrogeologic investigations, environmental monitoring programs, and soil and groundwater contamination studies at industrial facilities and active and closed solid waste facilities in Oregon, Washington, California, and Alaska.

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    • Mr. Caruso currently manages the Portland, Oregon, office of SCS Engineers/Field Services, which employs several geologists, environmental scientists, and field service technicians. He is a Licensed Geologist and Hydrogeologist in the State of Washington. Mr. Caruso leads SCS’s Northwest area landfill hydrogeology/environmental compliance group and serves as Client Manager for several of SCS’s large Northwest landfill clients and facilities. Mr. Caruso has worked on a wide range of solid waste related projects, including preparation of environmental monitoring plans, site characterization studies in support of lateral expansion of existing facilities, preliminary assessments, remedial investigation and feasibility study (RI/FS) and Model Toxics Control Act (MTCA) groundwater investigations, landfill gas-related contaminant investigations, and design and installation of compliance monitoring networks at closed and active municipal solid waste (MSW) and construction, demolition and land clearing debris (CDL) landfills in the Northwest. His current responsibilities include designing work scopes, providing technical oversight for projects; assessing, interpreting, and reporting information to clients and agencies; providing senior review of technical reports and work plans; developing and managing project budgets; directing field services staff, environmental scientist, and geologists/hydrogeologists, and working collaboratively with landfill engineers on joint projects.

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Mr. Cashin has over 13 years of experience in operation and maintenance (OM&M) of landfill gas (LFG) collection and control systems. He is currently the SCS Field Services OM&M Mid-Atlantic Project Manager, responsible for direct supervision of wellfield technicians, including data collection and review, and for business development within the region. He has worked on several LFG projects in Virginia and Maryland, performing routine and non-routine O&M tasks.

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    • Mr. Cashin has over 13 years of experience in operation and maintenance (OM&M) of landfill gas (LFG) collection and control systems. He is currently the SCS Field Services OM&M Mid-Atlantic Project Manager, responsible for direct supervision of wellfield technicians, including data collection and review, and for business development within the region. He has worked on several LFG projects in Virginia and Maryland, performing routine and non-routine O&M tasks.
      Routine services provided by Mr. Cashin include regulatory compliance tasks such as testing of monitoring wells, extraction wells, and header lines; blower/flare station data collection; Greenhouse gas data collection; extraction well balancing and adjustment; blower/flare station adjustment and maintenance; and extraction system troubleshooting and repair. He understands and performs surface emission at multiple landfills throughout Virginia. Other work includes non-routine scheduled repair and emergency call-out response.
      Mr. Cashin participates on projects involving operation, calibration, maintenance, and repair of automatic methane gas detection systems. He has experience in troubleshooting problems with LFG collection and detection systems. He is an experienced heavy equipment operator, and can operate many types of equipment.

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Kendall Caskie is a Senior Project Professional with our Energy division.

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    • Kendall Caskie is a Senior Project Professional with our Energy division.

Peter Cattaneo is experienced in solid waste management, composting, stormwater management structure design, and incorporating low impact development design into sites. His experience includes design, permitting, regulatory support, construction oversight, economic analysis, and technology assessment. He has extensive CAD and GIS training, and uses ArcGIS to create floodplain maps, determine watershed flow paths, and estimate pollutant loading. He is also proficient with AutoCAD to design a variety of scales from industrial design to building plans. He also has experience in the technical processes of advanced wastewater treatment plants.

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    • Peter Cattaneo is experienced in solid waste management, composting, stormwater management structure design, and incorporating low impact development design into sites. His experience includes design, permitting, regulatory support, construction oversight, economic analysis, and technology assessment. He has extensive CAD and GIS training, and uses ArcGIS to create floodplain maps, determine watershed flow paths, and estimate pollutant loading. He is also proficient with AutoCAD to design a variety of scales from industrial design to building plans. He also has experience in the technical processes of advanced wastewater treatment plants.

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Zack Christ, PE, is an experienced civil engineer. He serves as a project manager on landfill design projects, including permit applications to federal, state, and local regulators; and construction quality assurance (CQA) oversight of large landfill construction projects, including staff management and training. He also performs site characterizations and hydrological and geotechnical analyses. In addition, Mr. Christ assists with the siting, zoning, design, and permitting of solid waste management facilities, including municipal solid waste landfills, CCR landfill, and transfer stations. He is a Professional Engineer licensed in Illinois, Kansas, Connecticut, South Carolina, Louisiana, and Pennsylvania.

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    • Zack Christ, PE, is an experienced civil engineer. He serves as a project manager on landfill design projects, including permit applications to federal, state, and local regulators; and construction quality assurance (CQA) oversight of large landfill construction projects, including staff management and training. He also performs site characterizations and hydrological and geotechnical analyses. In addition, Mr. Christ assists with the siting, zoning, design, and permitting of solid waste management facilities, including municipal solid waste landfills, CCR landfill, and transfer stations.
      Hydrological analyses include computer modeling of storm events and ditch and basin design. Geotechnical analyses include slope stability, geosynthetic design, foundation stability, and settlement (includes seismic analyses).
      In addition, he assists in evaluating existing facilities for compliance with local, state, and federal regulations; performs site assessments; and develops cost estimates and material quantities for construction and engineering projects.
      He also performs floodplain studies and delineations, and prepares permit applications for construction within a floodway, including computer modeling and floodplain mapping. He has also performed field duties including CQA officer tasks and responsibilities, and field monitoring for numerous applications.

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Mr. Clark serves SCS as a Senior Project Professional within the Landfill group. He has more than 18 years of experience in site design and environmental engineering practices. He is a Professional Engineer licensed in Pennsylvania, Colorado, and Florida.

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    • Mr. Clark serves SCS as a Senior Project Professional within the Landfill group. He has more than 18 years of experience in site design and environmental engineering practices. He is a Professional Engineer licensed in Pennsylvania, Colorado, and Florida.

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Sherren Clark, PE, PG, has over three decades of experience in civil engineering and environmental science, with a technical background in both engineering and hydrogeology. She manages multidisciplinary projects including landfill design and monitoring, brownfield site investigation and remediation, and environmental management and permitting for private and public sector clients.

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    • Ms. Clark has over three decades of experience in civil engineering and environmental science, with a technical background in both engineering and hydrogeology. She manages multidisciplinary projects including landfill design and monitoring, brownfield site investigation and remediation, and environmental management and permitting for private and public sector clients. Ms. Clark has an M.S. in Civil and Environmental Engineering from the University of Wisconsin-Madison.

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Ms. Clarke is a Senior Project Professional with our Energy division.

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Bret Clements, PE, is a Vice President and Project Direcotr with over a decade of experience providing engineering support on a variety of projects, including landfill design, stormwater design, landfill gas design, contaminated site field investigations, surface water sampling, groundwater monitoring, and UST site remediation.

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    • Bret Clements, PE, is a Vice President and Project Director with over a decade of experience providing engineering support on a variety of projects, including landfill design, stormwater design, landfill gas design, contaminated site field investigations, surface water sampling, groundwater monitoring, and UST site remediation.

Myles Clewner, LEP, is a Vice President/Project Director and the Manager of the West Palm Beach, FL Office. He was also the former Quality Management Coordinator for SCS’s Southeast Business Unit operations. He has a broad and diverse solid waste and environmental engineering background that includes projects in landfill and waste processing facility permitting and compliance. Mr. Clewner has practiced solid waste engineering for 20 years and environmental consulting for 30 years.

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    • Mr. Clewner is a Vice President/Project Director and the Manager of the West Palm Beach, FL Office. He was also the former Quality Management Coordinator for SCS’s Southeast Business Unit operations. He has a broad and diverse solid waste and environmental engineering background that includes projects in landfill and waste processing facility permitting and compliance. He has practiced solid waste engineering for 20 years and environmental consulting for 30 years.
      Mr. Clewner’s work has including permitting, monitoring, and investigations. He is experienced in performing and preparing Phase I and II Environmental Site Assessments in several states on residential, commercial, and industrial properties, including Superfund sites, coal gasification plants, gasoline filling stations, automotive repair shops, dry cleaners, manufacturing facilities, old closed landfills, illegal abandoned dump sites, commercial strip malls, and residential apartment buildings. His work scope includes site investigations, historic research, regulatory documentation reviews, report preparation, design and implementation of sampling plans (including soil, soil vapor, sludge, sediment, ground water, surface water, air, asbestos, and lead paint investigations), underground storage tank removals, site remediation (including contaminated soil, sludge, and sediment removal), underground injection control system abandonments, and long-term site monitoring. Mr. Clewner is involved in permitting and ensuring the compliance of numerous types of solid waste facilities, including municipal solid waste landfills, construction and demolition debris landfills, material recovery facilities, and municipal solid waste transfer stations. He has prepared applications for new permits, permit renewals, and permit modifications for solid waste construction and operation permits, air construction and operation permits (including Title V permits), water use permits, water well installation permits (including monitoring wells and water supply wells), and hazardous material management permits (including permits for petroleum storage tanks). He has also been involved with the preparation of permit applications for beneficial use determination sites (such as asphalt batch plants retrofitted to accept petroleum contaminated non-hazardous soils as an aggregate) and the preparation of site assessment reports (including site investigations, historic research, regulatory documentation reviews, monitoring well installation, gas probe installation, ground water monitoring, surface water monitoring, soil monitoring, and landfill gas monitoring) for regulatory approval of site development plans for old closed landfills. Mr. Clewner has also been involved with compliance work related to numerous solid waste facilities. This work has included coordination and reporting of routine and compliance ground water monitoring events, surface water monitoring events, leachate monitoring events, landfill gas surface emissions monitoring events, landfill gas migration (perimeter probe) monitoring events, and site-specific hydrogen sulfide monitoring events. Additional compliance work has included the preparation of updated financial closure cost estimates, Major Air Pollution Source Annual Emissions Fee submissions, Title V Statement of Compliance reports, Annual Operating Report (AOR) submissions for Air Pollutant Emitting Facilities, New Source Performance Standards (NSPS) reports, Multi-Sector Generic Permit Discharge Monitoring Reports, Spill Prevention Control and Countermeasure Plans, and Storm Water Pollution Prevention Plans. Mr. Clewner also reviews leachate analytical reports to ensure compliance with permits and contracts for leachate disposal at city and county wastewater disposal facilities.

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Brandon Cline is a Project Manager for our Energy division. He is based in North Carolina.

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    • Brandon Cline is a Project Manager for our Energy division. He is based in North Carolina.