Staff

Brent Dieleman is a Project Manager with SCS Engineer’s 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. Brent’s attention to detail, experience with studies of varying scope and complexities, and his prioritization to understand the client’s 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 and preserve disposal capacity. Brent’s 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.

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    • Brent Dieleman is a Project Manager with SCS Engineer’s 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. Brent’s attention to detail, experience with studies of varying scope and complexities, and his prioritization to understand the client’s 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 and preserve disposal capacity. Brent’s 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.

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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.

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    • 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.

Darrin Dillah, PE, PhD, BCEE, is a Senior Vice President of SCS Engineers and heads up our LFG/Engineering Group in SCS’s Reston, Virginia office. His group works on a variety of solid waste engineering design/build projects ranging from biogas/landfill gas and landfills to pump stations, transfer stations, and biogas energy plants. Dr. Dillah has over three decades of experience in the environmental engineering field, including LFG system and landfill design, lecturing and research, feasibility studies, environmental assessments, economic analysis, construction oversight, health and safety implementation, and operation and maintenance.

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    • Dr. Dillah is a Senior Vice President of SCS Engineers and heads up our LFG/Engineering Group in SCS’s Reston, Virginia office. His group works on a variety of solid waste engineering design/build projects ranging from biogas/landfill gas and landfills to pump stations, transfer stations, and biogas energy plants. Dr. Dillah has over three decades of experience in the environmental engineering field, including LFG system and landfill design, lecturing and research, feasibility studies, environmental assessments, economic analysis, construction oversight, health and safety implementation, and operation and maintenance.
      Dr. Dillah has also served as an expert witness in his field and as a technical advisor on several international projects, traveling to locations like New Zealand, Nigeria, Argentina, and Mexico.

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Mr. Dillon is experienced in the landfill gas (LFG) industry. He is skilled in LFG tuning, troubleshooting, and compliance monitoring on closed and active Title V NSPS subpart WWW, OOO, and XXX sites.

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    • Mr. Dillon is experienced in the landfill gas (LFG) industry. He is responsible for developing streamlined approaches to operations, maintenance, and sampling to maximize cost efficiency and allow competitive pricing strategies for these activities. He is skilled in LFG tuning, troubleshooting, and compliance monitoring on closed and active Title V NSPS subpart WWW, OOO, and XXX sites.

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Tony DiPuccio, PE, provides SCS Engineers with a diversified and extensive background in environmental and civil engineering. He has performed both design and study projects in the areas of solid and hazardous waste, wastewater, water supply, and stormwater. Since joining SCS , many of his assignments have been in landfill gas use and management

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    • Mr. DiPuccio provides SCS Engineers with a diversified and extensive background in environmental and civil engineering. He has performed both design and study projects in the areas of solid and hazardous waste, wastewater, water supply, and stormwater. Since joining SCS , many of his assignments have been in landfill gas use and management

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Brian Doan, CSP, UST, has been with SCS since 1994. As a staff scientist, Mr. Doan coordinates and conducts a majority of the SCS field investigations and assessments in the Pacific Northwest. He is licensed for UST site assessments by the Washington State Department of Ecology, and he is certified for UST decommissioning by the International Fire Code Institute.

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    • Mr. Doan has been with SCS since 1994. As an SCS staff scientist, Mr. Doan coordinates and conducts a majority of the SCS field investigations and assessments in the Pacific Northwest. He is licensed for UST site assessments by the Washington State Department of Ecology, and he is certified for UST decommissioning by the International Fire Code Institute.
      Mr. Doan is also SCS’ health and safety officer. He has completed 40 hours of OSHA standard 29 CFR 1910.120 compliant health and safety training with annual eight-hour refresher training. He is also trained in first aid and CPR.
      As an EMS auditor, Mr. Doan has been helping clients with ISO 14000 environmental management systems gap analysis and implementation since 1995.

Doug Doerr, PE, is SCS Engineers’ Chief Executive Officer (CEO) as of January 1, 2024. He previously served as a Senior Vice President and the Business Unit Director of SCS Engineers’ Central region. Doug has more than 30 years of professional consulting experience and is one of the founding principals of Aquaterra Environmental Solutions, Inc., which merged with SCS Engineers in 2013. His technical expertise lies in the solid waste management arena and includes all facets of design, permitting, compliance, and economic/financial studies. He has also been involved with many other projects, including air permitting and compliance, traditional civil engineering, alternative energy planning and implementation, and environmental investigation and remediation. His Business Unit has been active in several recent strategic initiatives, including leachate and industrial wastewater treatment and carbon sequestration using underground storage. Doug is a degreed and licensed civil engineer with a BS from the University of Nebraska-Lincoln and an MBA from the University of Kansas.

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    • Doug Doerr, PE, is SCS Engineers’ CEO as of January 1, 2024. He previously served as a Senior Vice President and the Business Unit Director of SCS Engineers’ Central region. Doug has more than 30 years of professional consulting experience and is one of the founding principals of Aquaterra Environmental Solutions, Inc., which merged with SCS Engineers in 2013. His technical expertise lies in the solid waste management arena and includes all facets of design, permitting, compliance, and economic/financial studies. He has also been involved with many other projects, including air permitting and compliance, traditional civil engineering, alternative energy planning and implementation, and environmental investigation and remediation. His Business Unit has been active in several recent strategic initiatives, including leachate and industrial wastewater treatment and carbon sequestration using underground storage. Doug is a degreed and licensed civil engineer with a BS from the University of Nebraska-Lincoln and an MBA from the University of Kansas.
      Practice Areas
      Doug has directed or conducted numerous projects involving all facets of solid waste management nationwide, including the permitting, design, construction, and compliance of various types of disposal facilities and supporting infrastructure. Projects include feasibility and financial studies, due diligence, facility siting, site investigations, environmental studies, and permitting, design, and construction services for solid waste landfills, industrial waste landfills, utility waste/coal combustion residuals impoundments and landfills, transfer stations, power plants, and various other industrial and commercial facilities. Permitting and compliance efforts have involved solid waste, stormwater, and air permits along with various other environmental and local/regional/state use and zoning requirements.
      Contact Doug at (913) 749-0702 or

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Ms. Dolden is the Chief People Officer (CPO) of SCS Engineers. She is a member of the senior management team and is responsible for employee engagement.

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    • Ms. Dolden is the Chief People Officer (CPO) of SCS Engineers. She is a member of the senior management team and is responsible for employee engagement. Ms. Dolden has a Bachelor of Arts degree in psychology from California State University, Dominguez Hills, and a Master of Arts degree in industrial/organizational psychology from California State University, Long Beach. She is a certified Senior Professional in Human Resources (SPHR®) and a SHRM Senior Certified Professional (SHRM-SCP).

Ms. Dougherty is a Senior Project Engineer specializing in environmental and civil engineering systems planning and design, groundwater hydrology, air pollution modeling, and health risk assessment. She has managed landfill closure cap construction and gas collection and control system (GCCS) construction projects, and has participated in the oversight of project budgets, client interaction, coordination with regulatory staff, design and technical review, and project construction and fieldwork. Ms. Dougherty is a licensed Professional Engineer in California, Oregon, Washington, and Hawaii. She received her Bachelors Degree in Engineering from Princeton University and her Masters in Environmental Engineering from the University of California, Berkeley.

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    • Ms. Dougherty is a Senior Project Engineer specializing in environmental and civil engineering systems planning and design, groundwater hydrology, air pollution modeling, and health risk assessment. She has managed landfill closure cap construction and gas collection and control system (GCCS) construction projects, and has participated in the oversight of project budgets, client interaction, coordination with regulatory staff, design and technical review, and project construction and fieldwork. Ms. Dougherty is a licensed Professional Engineer in California, Oregon, Washington, and Hawaii. She received her Bachelors Degree in Engineering from Princeton University and her Masters in Environmental Engineering from the University of California, Berkeley.

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Mr. Dreyer is SCS’s Corporate Training and Development Manager, specializing in Health & Safety. He oversees deployment of training programs, including course and curricula development, training staff and supervisors across the country, and developing digital platforms to provide mandatory and supplemental training to employees nationwide.

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    • Mr. Dreyer is SCS’s Corporate Training and Development Manager, specializing in Health & Safety. He oversees deployment of training programs, including course and curricula development, training staff and supervisors across the country, and developing digital platforms to provide mandatory and supplemental training to employees nationwide.

Mr. Drooger is a Senior Project Professional with SCS’s Environmental Services Division. He provides environmental science and engineering support for projects performed out of the Reston, Virginia office. His experience includes of Phase I Environmental Site Assessments (ESAs), multi-media sampling to support Phase II ESAs, storage tank and site investigations, remedial actions, and solid waste studies.

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    • Mr. Drooger is a Senior Project Professional with SCS’s Environmental Services Division. He provides environmental science and engineering support for projects performed out of the Reston, Virginia office. His experience includes of Phase I Environmental Site Assessments (ESAs), multi-media sampling to support Phase II ESAs, storage tank and site investigations, remedial actions, and solid waste studies.

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Mr. Duffy is a Vice President and a Regional OM&M Manager experienced in LFG control and recovery. His LFG experience includes the OM&M of LFG and LFGE systems, and non-routine repair and emergency call-out response of the LFG collection systems at various landfills in southern California, southern Nevada, and Arizona. Mr. Duffy’s responsibilities include environmental compliance with local, state, and federal regulations, project coordination/scheduling, supervision of field staff, safety plan preparation, field data analysis, compliance reporting, reporting field conditions and recommending solutions to clients, proposals and budget preparation, cost control, invoicing and contract administration.

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    • Mr. Duffy is a Vice President and a Regional OM&M Manager experienced in LFG control and recovery. His LFG experience includes the OM&M of LFG and LFGE systems, and non-routine repair and emergency call-out response of the LFG collection systems at various landfills in southern California, southern Nevada, and Arizona.
      Mr. Duffy’s responsibilities include environmental compliance with local, state, and federal regulations, project coordination/scheduling, supervision of field staff, safety plan preparation, field data analysis, compliance reporting, reporting field conditions and recommending solutions to clients, proposals and budget preparation, cost control, invoicing and contract administration. Mr. Duffy has conducted various odor source and mitigation studies for the City of San Diego, managed blower/flare station replacement/construction projects, flare source testing, well installations, and LFG collection systems upgrades projects, and has experience in managing AB 32 LMR and NSPS 40 CFR 60.767(I) Tier 4 surface emissions monitoring. Other notable experience Mr. Duffy has includes expanded monitoring, sampling, and laboratory data analysis for landfills with exothermic reactions. He has managed projects to track hydrogen gas generation, target heat extraction, and manage liquids recovery at Republic Services landfills.

Gene Dumas, CARO, CIRO, is a Vice President of SCS Engineers and Project Director of the Risk Management group. He has over three decades of refrigeration experience, including ammonia experience in the poultry, fish, and dairy processing industries. His primary responsibility is assisting facilities that use anhydrous ammonia to address EPA’s Risk Management Program (RMP) and OSHA’s Process Safety Management (PSM) requirements. Those duties include facilitating Process Hazard Analysis studies; conducting Process Safety Management audits; and completing Risk Management studies. He is an expert in mechanical integrity inspections and audits.

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    • Gene Dumas, CARO, CIRO, is a Vice President of SCS Engineers and Project Director of the Risk Management group. He has over three decades of refrigeration experience, including ammonia experience in the poultry, fish, and dairy processing industries. His primary responsibility is assisting facilities that use anhydrous ammonia to address EPA’s Risk Management Program (RMP) and OSHA’s Process Safety Management (PSM) requirements. Those duties include facilitating Process Hazard Analysis studies; conducting Process Safety Management audits; and completing Risk Management studies. He is an expert in mechanical integrity inspections and audits.
      Mr. Dumas is also SCS Tracer’s lead refrigeration operator instructor. As a Refrigerating Engineers and Technicians Association (RETA) Authorized Instructor (RAI), Mr. Dumas is responsible for content quality and presentation for our refrigeration-related training courses.
      Prior to joining the SCS Tracer Environmental team, Mr. Dumas, served as the Maintenance Engineer for Hunter Farms Dairy from 1997-2015, where he was involved with PSM/PMP requirements from implemenation to law. He was responsible for several capital projects (some PSM-related) from development, budgeting, executing and follow-up (Management of Change / Pre-Startup Safety Review). He has also worked as an Electricians Mate in the US Navy (Honorable Discharge).

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Mr. Dustman is experienced in environmental project management, remedial design activities, building inspection, site assessments, and field training. He possesses an in-depth knowledge of relevant and applicable Federal, State, and local environmental laws, and protocols. Mike has served as project manager for numerous local agencies and private clients, including the U.S. Environmental Protection Agency (EPA) Region 4 Superfund Technical Assessment and Response Team (START) contracts in response to Hurricane Katrina. Mr. Dustman is a certified asbestos project designer, management planner, and building inspector, a certified air sample professional, and a certified lead-based paint inspector and lead risk assessor.

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    • Mr. Dustman is experienced in environmental project management, remedial design activities, building inspection, site assessments, and field training. He possesses an in-depth knowledge of relevant and applicable Federal, State, and local environmental laws, and protocols. Mike has served as project manager for numerous local agencies and private clients, including the U.S. Environmental Protection Agency (EPA) Region 4 Superfund Technical Assessment and Response Team (START) contracts in response to Hurricane Katrina. Mr. Dustman is a certified asbestos project designer, management planner, and building inspector, a certified air sample professional, and a certified lead-based paint inspector and lead risk assessor.
      He has managed over 100 Phase I Environmental Site Assessments (ESAs) and 20 Phase II ESAs. He has conducted required oversight for all remedial actions utilizing EPA-approved project plans and prepared numerous quality assurance project plans (QAPPs); field sampling and analysis plans (SAPs); remedial action plans (RAPs); health and safety plans (HASPs); and reports for emergency responses.

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Mr. Early is a Vice President of SCS Engineers and our Director of Technology Services. He is responsible for development of SCS DataServices products, and he manages the SCSeTools® Support Team, who provides administration for hundreds of sites where SCS DataServices is currently deployed. Mr. Early is experienced in landfill gas management.

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    • Mr. Early is a Vice President and our Director of Technology Services. He is responsible for development of SCS DataServices products, and he manages the SCSeTools® Support Team, who provides administration for hundreds of sites where SCS DataServices is currently deployed. Mr. Early is experienced in landfill gas management. In addition to technical expertise, Mr. Early has been involved in conducting site inspections of LFG collection and control systems and other environmental monitoring and control systems, and evaluating and documenting areas of compliance, concern, and non-compliance; prioritizing and scheduling project audit and training tasks to be completed by SCS’s OM&M compliance technicians; developing, maintaining, and implementing knowledge of federal, state, and local regulatory agency rules and regulations; developing, maintaining, and implementing procedures related to SCS’s Quality Management System (QMS) and related quality assurance/quality control (QA/QC) activities; and locating, attaining, and evaluating various permits to operate. Prior to joining SCS, Mr. Early worked at Fortisar Methane Group, where he was responsible for managing a team of OM&M technicians across 15 landfill sites throughout the US. He was instrumental in implementing improved system performance and efficiencies and in substantially increasing power plant production through a comprehensive investigation of physical systems and detailed multivariate data techniques, including time series and network analysis.

Mr. Eilers has nearly a decade of experience preparing and reviewing facility permit drawings, design drawings, and as-built drawings using AutoCAD Civil 3D for new municipal landfill cells, oilfield waste landfill cells, and various oilfield wastewater ponds. He is also experienced at conducting CQA on numerous landfill and pond construction projects and managing CQA field technicians during construction of landfill cells and wastewater evaporation ponds.

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    • Mr. Eilers has nearly a decade of experience preparing and reviewing facility permit drawings, design drawings, and as-built drawings using AutoCAD Civil 3D for new municipal landfill cells, oilfield waste landfill cells, and various oilfield wastewater ponds. He is also experienced at conducting CQA on numerous landfill and pond construction projects and managing CQA field technicians during construction of landfill cells and wastewater evaporation ponds.
      His experience includes preparing daily reports, performing field density and moisture testing with a nuclear gauge, collecting and detailing samples taken, equipment on-site, and construction progress accompanied by photo logs identifying different stages of construction. He also conducts soil and water sampling, performs explosive gas monitoring, analyzes groundwater data trends, and prepares SPCC plans. Additional experience includes conducting Vegetation Surveys upon gas-pipeline ROW for native vegetation, and performing BMP Inspections both from the ground and from an aerial perspective.

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Chad Ellinger, PE, is experienced in environmental and solid waste projects, including preparation of construction plans and bid documents, development of permitting documents for submittal to regulatory agencies, construction quality assurance (CQA), landfill budgeting assistance, and surveying for various solid waste facilities in Texas and Louisiana. Additional experience includes the design and permitting of alternate landfill liner systems, alternate final cover systems, leachate collection systems, and leachate evaporation ponds.

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    • Chad Ellinger, PE, is experienced in environmental and solid waste projects, including preparation of construction plans and bid documents, development of permitting documents for submittal to regulatory agencies, construction quality assurance (CQA), landfill budgeting assistance, and surveying for various solid waste facilities in Texas and Louisiana. Additional experience includes the design and permitting of alternate landfill liner systems, alternate final cover systems, leachate collection systems, and leachate evaporation ponds.
      Additionally, Mr. Ellinger has served as the project manager for various permit applications and modifications including closure-post-closure care cost estimates, alternative daily cover, additional unloading areas, above-grade Class 1 waste, and excavation/final cover revisions with no volumetric increase in waste capacity.

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Candy Elliott
Candy Elliott
Senior Project Professional/National Expert on Environmental Justice
Raleigh, NC
National Expert: Environmental Justice
O. (919) 662-3015

Candy Elliott, PG, is our National Expert on Environmental Justice. She is experienced in assessment and remediation, including comprehensive geologic and hydrogeologic site assessments in several states. Her projects include site characterization, site assessment and remediation, brownfields, groundwater monitoring and reporting, groundwater corrective action, mining, and other industrial facility or site development projects. She also supports new and existing landfill geologic permitting assignments for solid waste clients and facilities in North Carolina and throughout the mid-Atlantic region. Ms. Elliott is a licensed Professional Geologist.

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    • Candy Elliott, PG, is our National Expert on Environmental Justice. She is experienced in assessment and remediation, including comprehensive geologic and hydrogeologic site assessments in several states. Her projects include site characterization, site assessment and remediation, brownfields, groundwater monitoring and reporting, groundwater corrective action, mining, and other industrial facility or site development projects. She also supports new and existing landfill geologic permitting assignments for solid waste clients and facilities in North Carolina and throughout the mid-Atlantic region. Ms. Elliott is a licensed Professional Geologist.
      Additional experience includes vapor intrusion work plans and soil gas, subslab, and indoor air sampling. She has also managed UST removal and closure projects and conducted wastewater sampling and bioremediation.
      Contact Candy at (919) 662-3015 or

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Mr. Erickson has over 10 years of environmental project experience, with particular emphasis in engineering design of landfill gas (LFG) systems, construction quality assurance (CQA) monitoring, and landfill closure projects. His general civil design project experience includes design of regulatory prescribed landfill covers and liner systems, and LFG system design and equipment selection for over 20 sites in California.

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    • Mr. Erickson has over 10 years of environmental project experience, with particular emphasis in engineering design of landfill gas (LFG) systems, construction quality assurance (CQA) monitoring, and landfill closure projects. His general civil design project experience includes design of regulatory prescribed landfill covers and liner systems, and LFG system design and equipment selection for over 20 sites in California. As part of this work, Mr. Erickson has determined earthwork volume estimates; final grading and drainage configuration; and LFG system design, including blower/flare system (BFS) component sizing, well placement, and affiliated gas pipe sizing for projects in excess of $50 million. In addition to design work, Mr. Erickson has provided CQA monitoring for final closure and LFG system projects throughout California and Mexico, and siting activities for new landfill construction in Brazil. CQA monitoring experience included documentation and inspection of construction activities; certifying work was performed per project drawings and specifications, and correspondence with clients and construction groups. Over the last several years, Mr. Erickson has provided senior oversight of CQA staff for various projects. He has also conducted construction progress meetings and provided design modifications to final grading, drainage facilities, and LFG systems during project construction.

Mr. Espinoza has experience performing a variety of solid waste projects for both private and municipal facilities in Texas, including the permitting and design of landfills, transfer stations, and storm water protection and drainage systems. His experience includes construction quality assurance (CQA); hydrologic analysis of landfill drainage and erosion control systems; stability analysis of soil/waste landfill systems; development of construction plans and specifications; analysis of landfill operation and developmental costs; and permit application, modification, and amendment preparation.

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    • Mr. Espinoza has experience performing a variety of solid waste projects for both private and municipal facilities in Texas, including the permitting and design of landfills, transfer stations, and storm water protection and drainage systems. His experience includes construction quality assurance (CQA); hydrologic analysis of landfill drainage and erosion control systems; stability analysis of soil/waste landfill systems; development of construction plans and specifications; analysis of landfill operation and developmental costs; and permit application, modification, and amendment preparation.

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Ms. Essex is a Project Professional in our Richmond, Virginia office. She has experience with landfill design, Landfill Gas system design and permitting, New Source Performance Standards and Title V air permitting and compliance, and solid waste management facilities. She has a Masters degree in Mining Engineering.

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    • Ms. Essex is a Project Professional in our Richmond, Virginia office. She has experience with landfill design, Landfill Gas system design and permitting, New Source Performance Standards and Title V air permitting and compliance, and solid waste management facilities. She has a Masters degree in Mining Engineering.

Keith Etchells, PG, CHG, is a professional geologist and hydrogeologist with over two decades of experience assisting clients in managing environmental risks associated with ownership, transfer, or operation of commercial, industrial, and waste disposal properties. His technical expertise involves groundwater science and engineering relevant to contaminated sites and landfills, including supervision and conduct of subsurface data acquisition, remedial design and implementation, conceptual site model development, aquifer testing, extraction well design, groundwater quality evaluation and treatment, statistical analysis, predictive modeling, and contaminated soil and groundwater remediation design.

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    • Mr. Etchells is a professional geologist and hydrogeologist with over two decades of experience assisting clients in managing environmental risks associated with ownership, transfer, or operation of commercial, industrial, and waste disposal properties. His technical expertise involves groundwater science and engineering relevant to contaminated sites and landfills, including supervision and conduct of subsurface data acquisition, remedial design and implementation, conceptual site model development, aquifer testing, extraction well design, groundwater quality evaluation and treatment, statistical analysis, predictive modeling, and contaminated soil and groundwater remediation design. He is responsible for designing analytical, geotechnical, and hydrogeological data collection programs to complete subsurface assessment and remediation. He has prepared subsurface assessment documents, property mitigation plans, vapor intrusion risk assessment documents, soil management plans, aquifer characterization documents, conceptual site models, and groundwater remedial design and implementation documents.
      He has experience with several environmental regulatory entities, including the County of San Diego Department of Environmental Health (DEH), the California State Water Quality Control Board (SWQCB), including Santa Ana/San Diego/Lahontan Regional Water Quality Control Boards (RWQCBs), and the Department of Toxic Substances Control (DTSC).

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Ms. Evans has been working in recruiting since January 2018. She started her career in Agency recruiting and transitioned into Internal recruiting with SCS Engineers. She is the Talent Acquisition Coordinator in our Long Beach, California Office. She has a Bachelors in Communicative Disorders from California State University of Long Beach. She is also a member of the Young Professionals of SCS Engineers.

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    • Ms. Evans has been working in recruiting since January 2018. She started her career in Agency recruiting and transitioned into Internal recruiting with SCS Engineers. She is the Talent Acquisition Coordinator in our Long Beach, California Office. She has a Bachelors in Communicative Disorders from California State University of Long Beach. She is also a member of the Young Professionals of SCS Engineers.

Ms. Farmer is skilled in database management, interpersonal communication, event planning, and environmental education. She supports our Pasadena Sustainable Materials Marketing (SMM) group in zero waste and solid waste management plan preparation; business waste reduction; recycling technical assistance; disposal reporting review and monitoring; waste characterization studies; general research; and report writing. Kelli works closely with clients and SCS supervisory staff, providing oversight of field activities, performing site visits, conducting field work, and preparing reports.

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    • Ms. Farmer is skilled in database management, interpersonal communication, event planning, and environmental education. She supports our Pasadena Sustainable Materials Marketing (SMM) group in zero waste and solid waste management plan preparation; business waste reduction; recycling technical assistance; disposal reporting review and monitoring; waste characterization studies; general research; and report writing. Kelli works closely with clients and SCS supervisory staff, providing oversight of field activities, performing site visits, conducting field work, and preparing reports.
      Additional skills include public speaking, written communication, database management, data analysis, and project development.
      Prior to joining SCS, Kelli worked in various roles where she conducted market research; analyzed trends; and employed business development and marketing strategies to increase marketing campaign visibility. As an intern for Zero Waste Washington, Kelli gained experience in leading projects; assembling budgets; coordinating events; and overseeing data for accuracy.

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Deji Fawole, NICET, has over 30 years of experience in the solid waste industry and has been with SCS Engineers since 1995. Mr. Fawole serves as a Project Manager and Office Manager of our Columbia, Maryland regional office.

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    • Mr. Fawole has 25 years of experience in the solid waste industry. Mr. Fawole serves as a Project Manager and the Office Manager in our Columbia, Maryland regional office. He has significant experience coordinating and directing activities of field and office personnel, reviewing contractor submittals and shop drawings, performing constructability reviews, and preparing engineering cost estimates. He leads SCS’s services in landfill construction quality assurance (CQA) and material testing, transfer station construction, and landfill gas-to-energy facility construction. He is certified under NICET for construction inspection of geosynthetics materials installation and soils and provides resident engineering and lead CQA services throughout Maryland, Virginia and the District of Columbia. Mr. Fawole also has experience with international assignments under the USEPA Methane-to-Markets initiative.