Sam Cooke, PE, CEM, MBA, is a Vice President and our expert on Industrial Wastewater Pretreatment. He has nearly three decades of professional and project management experience in engineering with a concentration in environmental and energy engineering. Mr. Cooke works within SCS’s Liquids Management initiative to provide services to our clients nationwide.
Mr. Cooke, PE, CEM, MBA, is a Vice President and our expert on Industrial Wastewater Pretreatment. He has nearly three decades of professional and project management experience in engineering with a concentration in environmental and energy engineering. Mr. Cooke works within SCS’s Liquids Management initiative to provide services to our clients nationwide.
Mr. Cooke’s background as a long-time business owner adds to his perspective of emphasis on client profitability and proactive project communications.
Mr. Cooke is a licensed professional engineer in Wisconsin, Illinois, Indiana and Colorado. He earned a bachelor of science in chemical engineering, a master’s of business administration and is a Certified Energy Manager through the Association of Energy Engineers.
Practice Areas
Mr. Cooke’s primary areas of technical expertise include liquids management, building and industrial facility energy management, regulatory compliance and energy management, retro-commissioning, environmental assessments and audits, energy engineering, process/design engineering, site investigation and remediation, water and wastewater treatment, aboveground and underground storage tanks, and spill prevention, control, and countermeasures.
Mr. Cooke has managed over 1,000 projects in 31 states with many industrial, manufacturing, government agency, and corporate clients.
Contact Sam at 608-216-7382 or
Daniel Cooper, PE, is a Vice President with experience in all aspects of landfill and landfill gas projects including design, permitting, and construction. These projects range in scope from annual landfill gas (LFG) gas collection and control system expansions to permitting of new LFG Electrical Generators.
Mr. Cooper has been involved in all aspects of landfill and landfill gas projects including design, permitting, and construction. These projects range in scope from annual Landfill gas (LFG) Gas Collection and Control System (GCCS) expansions to permitting of new LFG Electrical Generators. Mr. Cooper has also provided engineering, project management and client support for stormwater water management, landfill scalehouse design, transfer station design, pump station design and hurricane debris management projects. He is currently a Project Director with SCS and leader of the Tampa LFG practice which focuses on LFG Gas Collection and Control System (GCCS) design, permitting, Title V compliance and GCCS construction CQA. Mr. Cooper oversees the LFG group, which performs all compliance reporting for Title V NSPS as well as greenhouse gasses for public and private landfills throughout the southeast. The Tampa LFG group regularly designs, permits and oversees the construction on new and expanded GCCS for the entire Southeast U.S.
Mr. Cooper is a Vice President with over 30 years of experience in landfill gas (LFG) control and recovery, emissions monitoring, and environmental compliance reporting. He is responsible for field supervision and implementation of environmental gas testing, monitoring, and construction projects.
Matt Corry is a Project Professional based in our Des Moines, IA, office.
Mr. Cortez has 31 years of landfill construction and Operations, Maintenance, and Monitoring (OM&M) experience. He has served as field engineer and project superintendent on landfill cell construction, design, excavation, and all levels of landfill gas (LFG) system operations and maintenance (O&M). Mr. Cortez has managed multi-site contracts, subcontractors, and field crews for over 20 years. He holds numerous specialty certifications that bring value to OM&M or construction projects. He has Superfund experience dating back to the 1980s. He has worked with cogen operators at dozens of sites to ensure gas quality and quantity, while keeping systems compliant, and can help operators avoid impacts to ongoing operations.
Mr. Cortez has 31 years of landfill construction and Operations, Maintenance, and Monitoring (OM&M) experience. He has served as field engineer and project superintendent on landfill cell construction, design, excavation, and all levels of landfill gas (LFG) system operations and maintenance (O&M). Mr. Cortez has managed multi-site contracts, subcontractors, and field crews for over 20 years. He holds numerous specialty certifications that bring value to OM&M or construction projects. He has Superfund experience dating back to the 1980s. He has worked with cogen operators at dozens of sites to ensure gas quality and quantity, while keeping systems compliant, and can help operators avoid impacts to ongoing operations.
Floyd Cotter, PE, is a Vice President, Project Director, and serves as the SCS Kansas City Office Manager where he is responsible for managing the technical and support personnel and the office’s financial performance and business development efforts. Mr. Cotter specializes in solid waste management projects; his experience involves all areas of solid waste management including planning, permitting, transportation, landfill design, construction, and monitoring. Mr. Cotter is also experienced in general civil engineering, construction oversight, environmental site assessments, closure and post-closure plans, and permit and contract document preparation. He is a licensed Professional Engineer in Arkansas, Illinois, Kansas, Missouri, and Oklahoma.
Mr. Cotter is a Vice President, Project Director, and serves as the SCS Kansas City Office Manager where he is responsible for managing the technical and support personnel and the office’s financial performance and business development efforts. Mr. Cotter specializes in solid waste management projects; his experience involves all areas of solid waste management including planning, permitting, transportation, landfill design, construction, and monitoring. Mr. Cotter is also experienced in general civil engineering, construction oversight, environmental site assessments, closure and post-closure plans, and permit and contract document preparation. He is a licensed Professional Engineer in Arkansas, Illinois, Kansas, Missouri, and Oklahoma. In addition, Mr. Cotter has experience with environmental due diligence consulting as it relates to landfill acquisitions and other real estate purchases.
Mr. Craig is a Project Manager with a diverse background in environmental consulting. His experience includes environmental program and project management, environmental sampling (groundwater, soil, air and building materials), environmental assessments, site and facility inspections, project safety audits and inspections, data collection from a variety of remedial systems (AS/VE, groundwater recirculation, groundwater extraction, chemical/amendments injection, and landfill gas collection), emergency response, soil excavations and source removals, remediation system installation, operations and maintenance (O&M), well installation oversight, and business development and marketing.
Mr. Craig is a Project Manager with a diverse background in environmental consulting. His experience includes environmental program and project management, environmental sampling (groundwater, soil, air and building materials), environmental assessments, site and facility inspections, project safety audits and inspections, data collection from a variety of remedial systems (AS/VE, groundwater recirculation, groundwater extraction, chemical/amendments injection, and landfill gas collection), emergency response, soil excavations and source removals, remediation system installation, operations and maintenance (O&M), well installation oversight, and business development and marketing.
Mr. Croasdale is a Project Manager in our Operations, Maintenance, and Monitoring (OM&M) Division. He has over 15 years of experience in landfill gas (LFG) system operations monitoring, maintenance, migration control and recovery projects, and NSPS compliance. Field responsibilities have included routine testing, monitoring, and maintenance; repair of LFG collection headers, pneumatic pumps, extraction wells, and blower/flare facilities. Mr. Croasdale also performs non-routine troubleshooting and repairs as well as emergency response services.
Mr. Croasdale is a Project Manager in our Operations, Maintenance, and Monitoring (OM&M) Division. He has over 15 years of experience in landfill gas (LFG) system operations monitoring, maintenance, migration control and recovery projects, and NSPS compliance. Field responsibilities have included routine testing, monitoring, and maintenance; repair of LFG collection headers, pneumatic pumps, extraction wells, and blower/flare facilities. Mr. Croasdale also performs non-routine troubleshooting and repairs as well as emergency response services.
As the Sub-region Manager, Mr. Croasdale is routinely involved with work scope implementation, scheduling of field technicians, data review, interpretation, and assessment and coordination with the Engineers. Responsibilities have included, 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. Croasdale construction background includes 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.
Mr. Crosby is a Project Manager at SCS Engineers and has 16 years of professional experience in the environmental consulting field. He successfully manages complex environmental site assessments (ESAs), subsurface investigations, and remediation and construction projects to navigate regulatory requirements and meet client objectives. He has experience investigating and remediating properties that have impacted soil and groundwater by a variety of constituents of concern, including total petroleum hydrocarbons, chlorinated solvents, volatile organic compounds (VOCs), pesticides, lead and other heavy metals, and PFAS.
Mr. Crosby is a Project Manager at SCS Engineers and has 16 years of professional experience in the environmental consulting field. He successfully manages complex environmental site assessments (ESAs), subsurface investigations, and remediation and construction projects to navigate regulatory requirements and meet client objectives. He has experience investigating and remediating properties that have impacted soil and groundwater by a variety of constituents of concern, including total petroleum hydrocarbons, chlorinated solvents, volatile organic compounds (VOCs), pesticides, lead and other heavy metals, and PFAS.
He routinely prepares technical environmental documents clearly describing environmental conditions to meet regulatory agency compliance. These documents include Work Plans, property mitigation plans, soil management plans (SMPs), corrective action plans (CAPs), remedial action plans (RAPs), ESA reports, groundwater monitoring reports, health risk assessments (HRAs), and property closure reports. He has experience managing groundwater monitoring programs, drilling operations (vertical and horizontal), remediation, and construction oversight. He has implemented remedial action Work Plans that include source zone excavation, dual-phase extraction (DPE), soil vapor extraction (SVE), in-situ chemical oxidation, bio-augmentation, and air sparging techniques. He has provided construction quality assurance (CQA) at landfill facilities, routinely manages Brownfield redevelopment excavation and grading projects, and has worked to assess and remediate releases at various military bases and airports.
Mr. Cuevas is a Senior Project Professional with our SCS Tracer Environmental division. He is experienced in risk analysis, and is responsible for the documentation of Process Safety Management Programs (PSM), Risk Management Programs (RMP), and California Accidental Release Prevention (CalARP) Programs for facilities using regulated substances.
Mr. Cuevas is a Senior Project Professional with our SCS Tracer Environmental division. He is experienced in risk analysis, and is responsible for the documentation of Process Safety Management Programs (PSM), Risk Management Programs (RMP), and California Accidental Release Prevention (CalARP) Programs for facilities using regulated substances. This work includes preparing all necessary documentation for compliance with the PSM/RMP/CalARP regulation, developing the Piping and Instrumentation Diagrams, and modeling the potential off-site consequences of potential releases.
Robert Curtis, PE, has more than 30 years of experience designing, permitting, managing, and overseeing construction of civil and environmental projects for both public and private clients. He specializes in creating detailed designs for landfill development and closure, landfill gas collection and conveyance systems, stormwater management and erosion control plans, and management of remedial action projects. He is also experienced in horizontal and vertical expansions, and the closure and remediation of existing facilities. Mr. Curtis has also worked with a variety of waste streams that range from low-strength industrial waste and sludges to municipal solid waste and construction and demolition debris.
Robert Curtis, PE, has more than 30 years of experience designing, permitting, managing, and overseeing construction of civil and environmental projects for both public and private clients. He specializes in creating detailed designs for landfill development and closure, landfill gas collection and conveyance systems, stormwater management and erosion control plans, and management of remedial action projects. He is also experienced in horizontal and vertical expansions, and the closure and remediation of existing facilities. Mr. Curtis has also worked with a variety of waste streams that range from low-strength industrial waste and sludges to municipal solid waste and construction and demolition debris.
Ms. Dahi is a Project Professional in SCS’s Energy Division. She has more than 15 years of experience in downstream/upstream of the oil and gas industry, refineries, renewable natural gas, petrochemicals, infra-structure, utilities, water and wastewater treatment industries and safety. She has experience both as a team member and as the head of teams of EPC and front-end engineering (FEED) development on several plants.
Ms. Dahi is a Project Professional in SCS’s Energy Division. She has more than 15 years of experience in downstream/upstream of the oil and gas industry, refineries, renewable natural gas, petrochemicals, infra-structure, utilities, water and wastewater treatment industries and safety. She has experience both as a team member and as the head of teams of EPC and front-end engineering (FEED) development on several plants.
Mr. Davis is an Ammonia Refrigeration Advisor for our Tracer Environmental division.
Ms. Day is a Senior Project Professional responsible for providing services to over 40 landfills in the areas of groundwater and stormwater monitoring, data evaluation, reporting, permitting, remediation services, and other environmental service projects. She conducts groundwater, environmental assessment, and other environmental study projects for municipal and private clients in several states, including Virginia, Maryland, Massachusetts, New Jersey, North Carolina, Pennsylvania, Rhode Island, and South Carolina.
Ms. Day is a Senior Project Professional responsible for providing services to over 40 landfills in the areas of groundwater and stormwater monitoring, data evaluation, reporting, permitting, remediation services, and other environmental service projects. She conducts groundwater, environmental assessment, and other environmental study projects for municipal and private clients in several states, including Virginia, Maryland, Massachusetts, New Jersey, North Carolina, Pennsylvania, Rhode Island, and South Carolina.
Mr. de la Lama is a Vice President and Regional Construction Manager for SCS Field Services. He has over 35 years of construction management and leadership experience. He has extensive qualifications in estimating, planning, and delivering civil projects, including landfill gas and landfill gas to energy projects.
Mr. de la Lama is a Vice President and Regional Construction Manager for SCS Field Services. He has over 35 years of construction management and leadership experience. He has extensive qualifications in estimating, planning, and delivering civil projects, including landfill gas and landfill gas to energy projects.
Mr. Dean is a Senior Project Manager for our Remote Monitoring Control business unit. He has over two decades of experience in solid waste and landfill gas (LFG) management, including remote monitoring, supervisory control and data acquisition (SCADA), control systems, LFG operation and maintenance (O&M) of the landfill gas collection and control systems (GCCS).
Mr. Dean is a Senior Project Manager for our Remote Monitoring Control business unit. He has over two decades of experience in solid waste and landfill gas (LFG) management, including remote monitoring, supervisory control and data acquisition (SCADA), control systems, LFG operation and maintenance (O&M) of the landfill gas collection and control systems (GCCS).
Mr. Dean has managed LFG system design, which includes system layout and design calculations, construction specifications preparations, construction management and construction’s quality assurance management (CQA). He has managed wellfield operations services including LFG well monitoring, extraction well balancing and adjustment, blower/flare station data collection and adjustment/maintenance, condensate system/sump maintenance, perimeter probe monitoring, groundwater well monitoring, surface emissions monitoring and non-routine scheduled repairs (leaks, pipe repair, etc.). He has provided maintenance and repairs on extraction pumps, pneumatic condensate sump pumps, thermocouple and electric component replacements.
Mr. Dean has also managed control system projects including design, panel fabrication, programming testing, commissioning and operations support.
Mr. DeGayner is a Senior Project Professional with the Sustainable Materials Management division, and provides environmental support for projects performed out of the SCS Reston, Virginia office. His experience includes field investigations and project management to support solid waste management and recycling studies as well as other environmental projects.
Mr. DeGayner is a Senior Project Professional with the Sustainable Materials Management division, and provides environmental support for projects performed out of the SCS Reston, Virginia office. His experience includes field investigations and project management to support solid waste management and recycling studies as well as other environmental projects.
Stacey Demers is a Vice President, a LEED® Accredited Professional, and our National Expert on Solid Waste Composition studies. She has three decades experience in the environmental field, specializing in solid waste and energy. Ms. Demers provides strong technical and analytical skills in planning, statistics, sample design for environmental programs, and modeling. Projects include program assessments, data analyses, database management, sampling protocols and associated field sampling specific to sustainability metrics. She is also the director of the Sustainable Materials Management Technical Division of the Solid Waste Association of North America.
Ms. Demers is a Vice President, a LEED® Accredited Professional, and our National Expert on Solid Waste Composition Studies. She has three decades of experience in the environmental field, specializing in solid waste and energy.
Ms. Demers provides strong technical and analytical skills in planning, statistics, sample design for environmental programs, and modeling. Projects include program assessments, data analyses, database management, sampling protocols and associated field sampling specific to sustainability metrics. She is also the director of the Sustainable Materials Management Technical Division of the Solid Waste Association of North America.
Contact Stacey at 571-353-2006 or
Paresh Desai, PE, is a Project Engineer with more than 30 years of engineering experience, including design and permitting of landfill liner systems, stormwater management systems, landfill gas management systems, and landfill gas to energy projects. He also prepares plan approval and Title V permit applications, annual emissions inventory, NSPS and greenhouse gas reporting. He is a Professional Engineer licensed in Pennsylvania, New Jersey, Maryland, and Delaware.
Mr. Descher is a Senior Project Professional with 14 years of solid waste experience, mostly in environmental compliance. He has experience in many aspects of solid waste and environmental compliance, including Title V permitting, monitoring and reporting, data management, groundwater, NPDES and other environmental monitoring, environmental compliance auditing of solid waste facilities, landfill cell construction, landfill cell closure, gas extraction system construction, as well as some experience with ash pond management and closure.
Mr. Descher is a Senior Project Professional with 14 years of solid waste experience, specializing in environmental compliance. He has experience in many aspects of solid waste and environmental compliance, including Title V permitting, monitoring and reporting, data management, groundwater, NPDES and other environmental monitoring, environmental compliance auditing of solid waste facilities, landfill cell construction, landfill cell closure, gas extraction system construction, as well as some experience with ash pond management and closure.
Projects typically have involved permitting, reporting, compliance tracking, regulatory agency liaison, and environmental sampling. Facilities have included landfills, landfill gas control facilities, material recovery facilities, transfer stations, power plants, and various other manufacturing and distribution facilities.
Brett DeVries, PE, PhD, is experienced in a broad range of landfill projects including, permitting, facility design, GCCS expansions, regulatory compliance, research, and construction-related services, including CQA. He is a Registered Professional Engineer in Texas, and has a PhD in Civil Engineering.
Brett DeVries, PE, PhD, is experienced in a broad range of landfill projects including, permitting, facility design, GCCS expansions, regulatory compliance, research, and construction-related services, including CQA. He is a Registered Professional Engineer in Texas, and has a PhD in Civil Engineering.
Bob Dick, PE, is a Senior Vice President and the Business Unit Director of SCS Engineer’s Mid-Atlantic operations, stretching from Maine to South Carolina. He has over 30 years’ experience on civil and environmental engineering projects related to solid waste management, and has performed landfill and landfill gas engineering projects (design, permitting, construction, and operations) in more than 15 states and several foreign countries. He is a licensed Professional Engineer in Virginia and North Carolina, a Board Certified Environmental Engineer (BCEE), and a member of the American Academy of Environmental Engineers and Scientists.
Mr. Dick is a Senior Vice President and the Business Unit Director of SCS Engineer’s Mid-Atlantic operations, stretching from Maine to South Carolina. He has over 30 years’ experience on civil and environmental engineering projects related to solid waste management, and has performed landfill and landfill gas engineering projects (design, permitting, construction, and operations) in more than 15 states and several foreign countries. He is a licensed Professional Engineer in Virginia and North Carolina, a Board Certified Environmental Engineer (BCEE), and a member of the American Academy of Environmental Engineers and Scientists.
Bob has also directed and completed numerous project assignments related to solid waste planning and facility projects which have involved residential and commercial collection and recycling programs, as well as convenience centers, composting facilities, and material recovery facility design, permitting, construction, and operations consulting.
Authored several publications and made numerous presentations on air quality, solid waste management, landfill engineering and LFG management/control, design/operations, GHG emissions, composting, and regulatory compliance.
Donovan Dickey has experience with an array of environmental compliance and construction quality assurance projects. His environmental consulting experience includes conducting phase I and phase II environmental site assessments; environmental projects involving contamination assessment, remedial system construction, operation of remediation treatment systems; environmental due diligence; pollution prevention; storage tank removal; ground water and soil sampling; landfill gas compliance and performance testing; and surface emissions monitoring.
Donovan Dickey has experience with an array of environmental compliance and construction quality assurance projects. His environmental consulting experience includes conducting phase I and phase II environmental site assessments; environmental projects involving contamination assessment, remedial system construction, operation of remediation treatment systems; environmental due diligence; pollution prevention; storage tank removal; ground water and soil sampling; landfill gas compliance and performance testing; and surface emissions monitoring.
Brent Dieleman is a Project Manager with SCS Engineers Sustainable Materials Management Division. He is a certified TRUE Advisor and has two decades of solid waste planning experience, including specialized expertise and experience designing, managing, and directing waste characterization studies and auditing source-separated recyclable materials. Brents attention to detail, experience with studies of varying scope and complexities, and his prioritization to understand the clients goals and objectives put him in a position to manage and execute projects that provide reliable data to inform short- and long-term solid waste planning activities and decisions. Brent uses his certification as a TRUE Advisor and experience to help communities identify and implement policies and programs that put them on a path to significantly expand their waste diversion activities to enhance sustainability preserve disposal capacity. Brents solid waste planning experience also includes collection program evaluation, stakeholder engagement and consensus building, recycling technical assistance, market identification and research, and facility/program/policy feasibility analysis.
Brent Dieleman is a Project Manager with SCS Engineers Sustainable Materials Management Division. He is a certified TRUE Advisor and has two decades of solid waste planning experience, including specialized expertise and experience designing, managing, and directing waste characterization studies and auditing source-separated recyclable materials. Brents attention to detail, experience with studies of varying scope and complexities, and his prioritization to understand the clients goals and objectives put him in a position to manage and execute projects that provide reliable data to inform short- and long-term solid waste planning activities and decisions. Brent uses his certification as a TRUE Advisor and experience to help communities identify and implement policies and programs that put them on a path to significantly expand their waste diversion activities to enhance sustainability preserve disposal capacity. Brents solid waste planning experience also includes collection program evaluation, stakeholder engagement and consensus building, recycling technical assistance, market identification and research, and facility/program/policy feasibility analysis.
Mr. Dietch is a Vice President and a Project Director in our Miami, FL, office. He is responsible for developing the Sustainable Materials Management Practice for SCS’s Southeast Region and works closely with SCS’s national experts to support our regional clients. He has conducted a wide range of solid waste and environmental projects for municipal and private clients. He has a Bachelor’s degree in Geology (with an Archeology minor), and an MBA in Management.
Mr. Dietch is a Vice President and a Project Director in our Miami, FL, office. He is responsible for developing the Sustainable Materials Management Practice for SCS’s Southeast Region and works closely with SCS’s national experts to support our regional clients. He has conducted a wide range of solid waste and environmental projects for municipal and private clients. He has a Bachelor’s degree in Geology (with an Archeology minor), and an MBA in Management.
Mr. Dietch has more than 20 years of academic and professional experience in solid waste management. He uses this experience to provide clients with strategic solid waste consulting, including solid waste and recycling planning, landfill gas project development, operations monitoring, procurements, litigation support, rate structure/alternative financing analyses, ordinance development, and contract negotiations. His responsibilities include program coordination, planning, execution, and client liaison. Work products include master/strategic plans, landfill closure plans, operations reports, technology reports, rate models and reports, contracts, ordinances, benefit/cost analyses, customized data management systems, and procurement documents.
In addition, Mr. Dietch specializes in developing and managing composting projects. His experience includes on-farm composting, where he has assisted with the development and operation of a turned windrow system, and institutional and municipal composting projects, where he has managed the development and operations of a proprietary in-vessel compost system. For composting projects, he has successfully processed a variety of waste streams, including municipal solid waste, sewage sludge, agricultural, paper and yard wastes, and pre- and post-plate food scraps. In addition to development and management, Mr. Dietch has been responsible for equipment assessment, prototype construction, permitting, and onsite operations.
