Dr. Leslie Smith, PE, is experienced in environmental engineering and remediation, including performing and preparing contamination assessments, remediation implementation, contract management, Phase I and II Environmental Site Assessments, hazardous material assessments and surveys, soil and groundwater sampling, underground storage tank removal oversight, report writing and review, and equipment maintenance. Dr. Smith manages and supports various advanced environmental projects, which include large-scale site assessments, remediation plans, soil management plans, and blending/source removal plans. She is a licensed Professional Engineer and has a PhD in Civil Engineering from Florida State University.
Dr. Leslie Smith, PE, is experienced in environmental engineering and remediation, including performing and preparing contamination assessments, remediation implementation, contract management, Phase I and II Environmental Site Assessments, hazardous material assessments and surveys, soil and groundwater sampling, underground storage tank removal oversight, report writing and review, and equipment maintenance. Dr. Smith manages and supports various advanced environmental projects, which include large-scale site assessments, remediation plans, soil management plans, and blending/source removal plans. She is a licensed Professional Engineer and has a PhD in Civil Engineering from Florida State University.
Dr. Smith has worked with the Miami-Dade County Department of Environmental Resources Management (DERM) Cover, Florida Department of Environmental Protection (FDEP) Petroleum Restoration Program (PRP), the Drycleaning Solvent Cleanup Program, the FDEP Site Investigation Section (SIS) and the South Florida Water Management District (SFWMD) on a variety of projects and contaminant types, including chlorinated solvents, petroleum constituents, per- and polyfluoroalkyl substances (PFAS) chemicals, polychlorinated biphenyls (PCBs) metals, pesticides, and herbicides. Projects typically have involved feasibility studies, due diligence investigations, environmental studies, site investigations and assessments, remediation design and construction services, and preparation of various procurement documents. Facilities have included historic agricultural lands and golf courses, petroleum facilities, wetlands, stormwater treatment areas, transfer and substation stations, and support facilities (e.g., stormwater, utilities).
Jacob Smith is a Project Professional in our Richmond, VA office.
Andrew Smith is a Project Manager for our Energy Division.
Ms. Socha is a hydrogeologist with expertise and extensive experience in soil and groundwater investigations and remediation, environmental site assessments, field investigation methods, geologic mapping, and interpretation of sedimentology and stratigraphy of glacial and non-glacial deposits for environmental and engineering projects. She has a Bachelor’s degree in Earth Science, Master’s Degrees in Environmental Monitoring and Geology, and a PhD in Geology, all from the University of Wisconsin.
Ms. Socha is a hydrogeologist with expertise and extensive experience in soil and groundwater investigations and remediation, environmental site assessments, field investigation methods, geologic mapping, and interpretation of sedimentology and stratigraphy of glacial and non-glacial deposits for environmental and engineering projects. Since 1985, she has designed and implemented geologic and hydrogeologic investigations at sites in Wisconsin, Minnesota, North Dakota, Illinois, Ohio, and Indiana, including several sites with fractured bedrock and multiple aquifer systems. Ms. Socha has an M.S. degree in Environmental Monitoring, a M.S. degree in Geology, and a Ph.D. in Geology, all from the University of Wisconsin – Madison.
Mr. Soderberg is an Environmental Professional responsible for a broad variety of environmental compliance projects and subsequent environmental field work for our Tracer division. He is experienced in leading biological field operations for environmental projects on military installations. He also has experience in remote helicopter field operations. He applies his academic background in chemistry toward a wide variety of analytical tasks.
Mr. Soderberg is an Environmental Professional responsible for a broad variety of environmental compliance projects and subsequent environmental field work for our Tracer division. He is experienced in leading biological field operations for environmental projects on military installations. He also has experience in remote helicopter field operations. He applies his academic background in chemistry toward a wide variety of analytical tasks.
Michael Solomon, PE, is Vice President of SCS Engineers and a Senior Project Manager for our Energy division’s constructing engineering group. He has nearly two decades of experience, including managing the EPC execution of renewable natural gas (RNG) projects.
Michael Solomon, PE, is a Vice President of SCS Engineers and a Senior Project Manager for our Energy division’s constructing engineering group. He has nearly two decades of experience, including managing the EPC execution of renewable natural gas (RNG) projects.
Before joining SCS Energy, Mr. Solomon was a Project Manager for Noble Midstream Partners and AECOM conducting projects for several industries including oil and gas, chemical, power and government. His responsibilities included project commercial and technical management, project scoping, scheduling, procurement, safety and quality conformance, engineering coordination and construction oversight. He provided leadership of design teams and development of staff.
Richard Southorn, PE, PG, serves as Project Director in our Chicagoland office. He manages coal combustion residual (CCR) and municipal solid waste projects, ranging from construction plan development to full-scale design services. He is a licensed Professional Engineer in Illinois, New York, Pennsylvania, Maryland, Delaware, Alabama, South Carolina, Kansas, Michigan, Indiana, Hawaii, Oregon, and Georgia; and a licensed Professional Geologist in Illinois and Delaware.
Richard Southorn, PE, PG, serves as Project Director in our Chicagoland office. He manages coal combustion residual (CCR) and municipal solid waste projects, ranging from construction plan development to full-scale design services.
As a Professional Engineer, he is experienced in developing site layouts and analyzing designs for multiple facilities. This has included infrastructure, landfill base and final cover liner systems, leachate extraction and cleanout systems, landfill gas control systems, and storm water management controls. He oversees geotechnical stability evaluations, storm water modeling, leachate collection system evaluations, landfill gas collection system design, and road design/queuing analyses for these facilities.
As a Professional Geologist, Mr. Southorn has overseen and participated in numerous hydrogeologic investigations that characterize subsurface stratigraphy, hydrology/hydrogeology, and groundwater flow for the purpose of site development.
He is a licensed Professional Engineer in Illinois, New York, Pennsylvania, Maryland, Delaware, Alabama, South Carolina, Kansas, Michigan, Indiana, Hawaii, Oregon, and Georgia; and a licensed Professional Geologist in Illinois and Delaware.
Kollan Spradlin, PE, is a Project Manager with over a decade of experience in project management, engineering services support, and environmental consulting throughout Florida, Tennessee, and Alabama. His expertise includes Environmental Site Assessments, hazardous materials, geotechnical explorations, soil and groundwater contamination delineation and treatment, landfill operations, leachate management, and compliance reporting. He is well practiced in the major federal environmental regulations with a specialization in solid and hazardous waste management in the Southeastern United States. He currently manages multiple solid waste consultation and general engineering services contracts for municipal clients in the Tampa Bay area.
His experience as a state regulator in Alabama introduced him to waste management and a variety of remediation techniques used at large-scale industrial facilities. As an engineering consultant in Tennessee and Florida, he has focused on assisting clients achieve their goals by applying lessons learned as a regulator.
Melissa St. John has nearly two decades of progressive experience in solid waste compliance, project management, and landfill gas collection and control system (GCCS) operation, maintenance, and monitoring (OM&M), as well as compliance reporting. She is a SWANA certified Manager of Landfill Operations (MOLO) and a Registered Environmental Health Specialist (REHS). As a Project Manager, she is responsible for air quality consulting that includes air permitting; oversight of air testing, sampling, and monitoring; OM&M and compliance; document and proposal preparation; and business development.
Melissa St. John has nearly two decades of progressive experience in solid waste compliance, project management, and landfill gas collection and control system (GCCS) operation, maintenance, and monitoring (OM&M), as well as compliance reporting. She is a SWANA certified Manager of Landfill Operations (MOLO) and a Registered Environmental Health Specialist (REHS). As a Project Manager, she is responsible for air quality consulting that includes air permitting; oversight of air testing, sampling, and monitoring; OM&M and compliance; document and proposal preparation; and business development.
Ms. Stackhouse is a Project Manager for SCS Field Services with over a decade of experience in the groundwater and geologic fields. She provides coordination, quality control and support services for groundwater, landfill environmental compliance and Landfill Methane Rule (LMR) surface emissions monitoring and reporting, as well as maintaining and testing landfill gas (LFG), groundwater, and leachate collection systems.
Ms. Stackhouse is a Project Manager for SCS Field Services with over a decade of experience in the groundwater and geologic fields. She provides coordination, quality control and support services for groundwater, landfill environmental compliance and Landfill Methane Rule (LMR) surface emissions monitoring and reporting, as well as maintaining and testing landfill gas (LFG), groundwater, and leachate collection systems.
Additional experience includes management of RCRA and CERCLA regulated industrial facilities and Voluntary Cleanup Program sites, including wood treatment facilities, plating operations, plastics manufacturers, coke and tar plants, chemical manufacturing plants, and fuel blending operations. He supervised and provided engineering and regulatory recommendations for the characterization, remediation, and ongoing monitoring of historical releases. Worked with EPA Region 4 representatives, consultants, and stakeholders to develop characterization plans, risk assessments, pilot studies, remediation plans and performance standards.
Mr. Stege is a Senior Project Advisor and SCS Engineers’ National Expert on Landfill Gas Modeling. He leads SCS’s non-regulatory landfill gas (LFG) recovery modeling services to support LFG-to-Energy and high-Btu methane utilization project development. Over the past 25 years, Mr. Stege developed and refined SCS’s U.S. LFG recovery model that leverages our companywide expertise in LFG collection to assess methane recovery more accurately. This model uses a database of over 1,300 years of measured LFG flows and SCS assessments of collection system performance at over 250 landfills to empirically define LFG model input assumptions. Mr. Stege has prepared domestic and international LFG modeling/due diligence studies for hundreds of landfills in the United States and around the world for the USEPA, World Bank, International Finance Corporation, landfill owners, municipalities, and LFG project developers.
Mr. Stege is a Senior Project Advisor and SCS Engineers’ National Expert on Landfill Gas Modeling. He leads SCS’s non-regulatory landfill gas (LFG) recovery modeling services to support LFG-to-Energy and high-Btu methane utilization project development. Over the past 25 years, Mr. Stege developed and refined SCS’s U.S. LFG recovery model that leverages our companywide expertise in LFG collection to assess methane recovery more accurately. This model uses a database of over 1,300 years of measured LFG flows and SCS assessments of collection system performance at over 250 landfills to empirically define LFG model input assumptions. Mr. Stege has prepared domestic and international LFG modeling/due diligence studies for hundreds of landfills in the United States and around the world for the USEPA, World Bank, International Finance Corporation, landfill owners, municipalities, and LFG project developers.
Mr. Stege also trains SCS staff on LFG modeling and is responsible for the ongoing development of SCS’s domestic and international LFG models. SCS has an advanced LFG modeling practice due in large part to Mr. Stege’s work.
Mr. Stege frequently presents on the application of LFG models to evaluate landfill methane generation and recovery at conferences hosted by organizations such as LMOP (numerous conferences); the Global Methane Initiative (GMI) Partnership [including Expos in China, India, and Canada]; the Solid Waste Association of North America (SWANA); the Environmental Research and Education Foundation (EREF); the Global Waste Management Symposium; and the International Solid Waste Association (ISWA). He has authored numerous international LMOP/GMI LFG models, and has provided training on their use. He has served as the Chairman of SWANA’s Generation and Modeling Committee for over a decade.
Contact Alex at 602-840-2596 or
Ms. Stephens is a Vice President of SCS Engineers and a Project Director with over two decades of experience in environmental consulting, all with SCS. Her experience includes numerous projects related to air permitting and compliance with solid waste regulations, including landfill gas (LFG) surface and perimeter monitoring, LFG assessment, and perimeter probe design and installation.
Ms. Stephens is a Vice President of SCS Engineers and a Project Director with over two decades of experience in environmental consulting, all with SCS. Her experience includes numerous projects related to air permitting and compliance with solid waste regulations, including landfill gas (LFG) surface and perimeter monitoring, LFG assessment, and perimeter probe design and installation. She provides air permitting services for LFG collection and control devices and associated equipment, including enclosed ground flares, LFG-to-energy (LFGTE) plants, and carbon absorption systems. She also conducts air permitting and compliance projects for combustion equipment, including flares, engines, and turbines.
Ms. Stephens has worked with many of the air districts in California, including the South Coast Air Quality Management District (SCAQMD), Bay Area AQMD, Antelope Valley AQMD, Mojave Desert AQMD, San Joaquin Valley Air Pollution Control District (SJVAPCD), Ventura County APCD, Santa Barbara APCD, and San Diego County APCD. She has also worked with Local Enforcement Agencies (LEAs) across Southern California.
Ms. Stephens has completed emissions estimates and inventories and has prepared numerous permit-to-construct/operate permit applications. She prepares compliance reports, which includes reviewing and maintaining records and regulatory deadlines. She has also completed evaluations and reporting for federal GHG Rule and Rule AB32 LMR applicability
Joy Stephens is a conscientious environmental scientist with strong communication, analytical, and technical skills. She is experienced with environmental surveys and monitoring, GIS, R, and Environmental Impact Assessments. She has extensive knowledge of sustainable development principles, issues surrounding energy production, and environmental policy. She has an in-depth understanding of the scientific principles (atmospheric, hydrological, geomorphological, and ecological) that underpin environmental management as well as the economic, political, social, and legal frameworks for managing the environment. Joy is a licensed remote pilot, and has a Master’s in Environmental Management (Energy).
Joy is a conscientious environmental scientist with strong communication, analytical, and technical skills. She is experienced with environmental surveys and monitoring, GIS, R, and Environmental Impact Assessments. She has extensive knowledge of sustainable development principles, issues surrounding energy production, and environmental policy. She has an in-depth understanding of the scientific principles (atmospheric, hydrological, geomorphological, and ecological) that underpin environmental management as well as the economic, political, social, and legal frameworks for managing the environment. Joy Stephens is a conscientious environmental scientist with strong communication, analytical, and technical skills. She is experienced with environmental surveys and monitoring, GIS, R, and Environmental Impact Assessments. She has extensive knowledge of sustainable development principles, issues surrounding energy production, and environmental policy. She has an in-depth understanding of the scientific principles (atmospheric, hydrological, geomorphological, and ecological) that underpin environmental management as well as the economic, political, social, and legal frameworks for managing the environment. Joy is a licensed remote pilot, and has a Master’s in Environmental Management (Energy).
Joy performs data base management, tracking and cross-referencing data to determine system health, compliance monitoring and tracking, assign maintenance tasks and convey supervisory instruction, coordination of purchases and deliveries, general staff oversight including timekeeping records review and expense controls, as well as document and client report preparation and review. Her fieldwork includes gas analysis instrumentation, liquid levels, Tedlar bag samples, landfill gas migration probe monitoring, dangerous goods shipments, client communication and relations.
Justin Stevenson, EIT, has designed numerous landfill gas (LFG) collection and control systems, including pipe sizing and head loss calculations, phasing plans, and end-of-life plans for Title V reporting. He assists in the design and start-up of LFG flare projects and performs construction oversight for LFG collection system and for LFG flare system installation. Mr. Stevenson has a BSE in Mechanical Engineering.
Justin Stevenson, EIT, has designed numerous landfill gas (LFG) collection and control systems, including pipe sizing and head loss calculations, phasing plans, and end-of-life plans for Title V reporting. He assists in the design and start-up of LFG flare projects and performs construction oversight for LFG collection system and for LFG flare system installation. Mr. Stevenson has a BSE in Mechanical Engineering.
Steven Stewart, PE, is our National Expert and Director for Sustainability responsible for project development and also serves as client account manager for numerous clients including those with a sustainability focus. Steven has with more two decades of experience within the Environmental Consulting and Manufacturing Industry providing strategic thinking related to project planning, regulatory strategy, and developing sustainability initiatives. His experience includes energy efficiency measures, GHG reduction, carbon sequestration, water re-use and stewardship, and solid waste minimization and recycling programs. Additional experience includes managing and performing permitting, compliance audits, developing environmental management systems, long-term environmental planning, environmental and sustainability capital projects. He also has served as Environmental Manager and Capital Projects Portfolio manager at a large steel manufacturing facility which provides valuable experience to clients when project development and planning. Mr. Stewart is a licensed Professional Engineer in Alabama and Florida.
Steven Stewart, PE, is our National Expert and Director for Sustainability responsible for project development and serving as client account manager for numerous clients including those with a sustainability focus. Steven has with more two decades of experience within the Environmental Consulting and Manufacturing Industry providing strategic thinking related to project planning, regulatory strategy, and developing sustainability initiatives. His experience includes energy efficiency measures, GHG reduction, carbon sequestration, water re-use and stewardship, and solid waste minimization and recycling programs. Mr. Stewart is a licensed Professional Engineer in Alabama and Florida.
Additional experience includes managing and performing permitting, compliance audits, developing environmental management systems, long-term environmental planning, environmental and sustainability capital projects.
He also has served as Environmental Manager and Capital Projects Portfolio manager at a large steel manufacturing facility which provides valuable experience to clients when project development and planning.
Christine Stokes, LSRP, is an environmental engineer experienced in environmental remediation, including soil, groundwater, and vapor intrusion assessments; environmental compliance; planning, permitting, and conducting remedial actions including underground storage tank (UST) closures and media treatment utilizing in-situ chemical oxidation and bioremediation in addition to more conventional methods such as pump and treat (P&T) and soil excavation as well as design, permitting, and installation of sub-slab depressurization (SSD) systems.
Ms. Stokes is an environmental engineer experienced in environmental remediation, including soil, groundwater, and vapor intrusion assessments; environmental compliance; planning, permitting, and conducting remedial actions including underground storage tank (UST) closures and media treatment utilizing in-situ chemical oxidation and bioremediation in addition to more conventional methods such as pump and treat (P&T) and soil excavation as well as design, permitting, and installation of sub-slab depressurization (SSD) systems. She has performed limited human health risk assessments for contaminated sites undergoing redevelopment in the New York and New Jersey area. She has conducted facility air permitting for small production facilities through USEPA Title V. She also managed a database of energy consumption for North America office and manufacturing operations which was used to calculate greenhouse gas emissions. She has experience with permitting, regulatory agency reporting, Stormwater Pollution Discharge Elimination System (SPDES) activities, preparation and updates of state Discharge Pollution Control and Countermeasures (DPCC) plans and federal Spill Prevention Control and Countermeasures (SPCC) plans, and has been responsible for compliance with Resource Conservation and Recovery Act (RCRA) for hazardous waste storage and disposal along with medical and radiological waste storage and disposal.
Ms. Stokes has assisted with treatment design, installation and development of Operations & Maintenance (O&M) Plans for P&T and AS/SVE systems for sites with chlorinated solvent contamination. She conducted system sampling and inspections, and she has extensive experience conducting and managing Phase I and Phase II Environmental Site Assessments (ESAs) throughout the northeast.
Josh Strickland is experienced in the design and development of solid waste management systems and other environmental services. He works with SCS’s Liquids Management team supporting regional and national clients, including oil and gas, manufacturing, and refining industries. Project experience includes various phases from FEL-1 to construction, including contributing technical expertise in the preliminary design, sizing, and procurement of equipment.
Josh Strickland is experienced in the design and development of solid waste management systems and other environmental services. He works with SCS’s Liquids Management team supporting regional and national clients, including oil and gas, manufacturing, and refining industries. Project experience includes various phases from FEL-1 to construction, including contributing technical expertise in the preliminary design, sizing, and procurement of equipment.
Ms. Sturgeon is the Health and Safety Program Manager for SCS Field Services OM&M and SCS Energy. In this role, Ms. Sturgeon is responsible for program development and implementation, including all operational and administrative policies and procedures. Ms. Sturgeon monitors all field and administrative projects to be sure they are compliant with company, industry, and regulatory standards.
Suzanne Sturgeon is the Health and Safety Program Manager for SCS Field Services OM&M and SCS Energy. In this role, Ms. Sturgeon is responsible for program development and implementation, including all operational and administrative policies and procedures. Ms. Sturgeon monitors all field and administrative projects to be sure they are compliant with company, industry, and regulatory standards. Ms. Sturgeon manages the Health & Safety (H&S) training efforts for Field Services & Energy, as well as develops and conducts cultural-based training within the Company to promote understanding and participation at all levels while encouraging a behavior based philosophy essential to eliminating unsafe practices and conditions. Ms. Sturgeon conducts on-site safety assessments and provides incident analysis and feedback of all reported incidents and near misses as a means of promoting a proactive safety culture. Ms. Sturgeon has over 10 years of industry experience managing safety programs and has been integral in SCS’ efforts to eliminate OSHA reportable incidents, lost work days and reduce the company’s Experience Modification Rate (EMR). Ms. Sturgeon is a Certified Safety Management Specialist and is in the final stages of receiving her Bachelor’s degree in Health & Safety Management.
Martin Sturzl, PE, has over 30 years of experience as an environmental engineer with extensive experience in landfill planning, permitting and design, mining, construction, and quality assurance/control. His landfill project experience includes cover installation, gas system construction, waste relocation, plan of operation, plan modification, and ash disposal facility design and construction. He has also prepared landfill feasibility reports and a variety of construction observation reports. His mining experience includes preparation of long-term mine plans, tailings/waste rock management, and reclamation planning.
Mr. Sturzl has over 30 years of experience as an environmental engineer with extensive experience in landfill planning, permitting and design, mining, construction, and quality assurance/control. His landfill project experience includes cover installation, gas system construction, waste relocation, plan of operation, plan modification, and ash disposal facility design and construction. He has also prepared landfill feasibility reports and a variety of construction observation reports. His mining experience includes preparation of long-term mine plans, tailings/waste rock management, and reclamation planning.
Mr. Suchomel is a Project Professional experienced in the waste management industry and environmental consulting. He provides engineering support on solid waste-related sites and performs construction oversight and field documentation for various geosynthetics installation, clay liner construction, and landfill gas collection system construction. Brandon has experience with geotechnical analysis including slope stability and settlement as well as with environmental compliance work such as Spill Prevention Control and Countermeasure (SPCC) Plan development and environmental site investigations, including Phase I and II Environmental Site Assessments. He also helps electric utilities comply with the Coal Combustion Residuals (CCR) Rule and move to renewable energy. He supports Wisconsin Power & Light’s CCR management efforts at their Wisconsin facilities in Portage, Cassville, and Sheboygan.
Mr. Suchomel is a Project Professional experienced in the waste management industry and environmental consulting. He provides engineering support on solid waste-related sites and performs construction oversight and field documentation for various geosynthetics installation, clay liner construction, and landfill gas collection system construction. Brandon has experience with geotechnical analysis including slope stability and settlement as well as with environmental compliance work such as Spill Prevention Control and Countermeasure (SPCC) Plan development and environmental site investigations, including Phase I and II Environmental Site Assessments. He also helps electric utilities comply with the Coal Combustion Residuals (CCR) Rule and move to renewable energy. He supports Wisconsin Power & Light’s CCR management efforts at their Wisconsin facilities in Portage, Cassville, and Sheboygan.
Pat Sullivan, BCES, CPP, REPA, is a Senior Vice President of SCS Engineers and the Business Unit Director of our Southwest Region, encompassing California, Arizona, Nevada, Utah, and New Mexico. Pat is a Harvard-degreed scientist, a Registered Environmental Property Assessor (REPA), Board Certified Environmental Scientist (BCES), Certified Permitting Professional (CPP) in the South Coast Air Quality Management District (SCAQMD), and an accredited Lead Verifier under the California Air Resources Board (CARB) AB 32 Greenhouse Gas (GHG) programs. He is our National Expert on the Clean Air Act and the New Source Performance Standard (NSPS) and on Odor Management. He has over three decades of professional experience, all with SCS. He is also the Practice Leader for 01-SW’s Solid Waste Practice. He leads the firm’s strategic initiative for Sustainability, Greenhouse Gas, and the Clean Air Act. He is a member of the SCS Management Advisory Committee. He is active in 12 professional organizations, including National Waste and Recycling Association (NW&RA), Solid Waste Association of North America (SWANA), and Air and Waste Management Association. Pat is a member of the Hall of Flame for the SWANA LFG/Biogas Division and has received SWANA’s Distinguished Individual Achievement Award. He has also received NW&RA’s Distinguished Service Award and has published/presented over 120 papers and presentations in industry publications/ conferences. His technical expertise includes air permitting and compliance, GHG emissions and climate change, human health and ecological risk assessment, landfill investigation and redevelopment, and LFG engineering. He has also worked in the 01-SW Environmental Services (ES) group and formerly managed the Northern California ES practice.
Pat Sullivan, BCES, CPP, REPA, is a Senior Vice President of SCS Engineers and the Business Unit Director of our Southwest Region, encompassing California, Arizona, Nevada, Utah, and New Mexico. He is our National Expert on the Clean Air Act and the New Source Performance Standard (NSPS). He also serves as the Practice Leader for SCS’s Solid Waste Practice in the Southwest, and he oversees companywide GHG and Risk Assessment programs. Mr. Sullivan has over three decades of environmental engineering experience (all with SCS), specializing in solid waste management and other environmental issues.
Mr. Sullivan also oversees SCS’s company-wide GHG and Risk Assessment programs and is one of the national experts on risk assessment and toxic exposure issues for solid waste facilities. He is a Senior Vice President and Member of the Company’s Management Advisory Committee.
He is the Principal-in-Charge for projects related to air quality permitting and compliance, GHG emissions and climate change, LFG engineering and compliance, facility investigation and risk assessment, redevelopment of impacted properties, and soil and groundwater investigations at solid waste and other industrial facilities, as well as related engineering services. Mr. Sullivan has published and/or presented over 150 technical papers and/or presentations in industry journals, publications, conferences, seminar, and workshops.
He has worked closely with regulatory agencies on the federal, state and local level. His expertise has been developed managing large-scale contracts, programs, and projects on a state and national level. His management experience includes managing professional and field staff and all aspects of operational performance, customer service, and project management. He has an extensive knowledge of regulatory permitting and compliance. His Real Estate training has been pivotal in large scale property acquisitions, divestitures, and development in the oil and gas and renewable energy sectors.
Contact Pat at 916-361-1297 or
Mr. Sullivan is a Senior Project Professional in our Landfill Gas group. His experience includes the design of landfill and landfill gas systems, transfer stations, and citizen convenience recycling centers. Additional environmental engineering experience includes liquids management, methane mitigation systems, stormwater management, and pollution prevention plans. He is a licensed Professional Engineer in Virginia and a SWANA-certified Technical Associate of Transfer Station Systems.
Mr. Sullivan is a Senior Project Professional in our Landfill Gas group. His experience includes the design of landfill and landfill gas systems, transfer stations, and citizen convenience recycling centers. Additional environmental engineering experience includes liquids management, methane mitigation systems, stormwater management, and pollution prevention plans. He is a licensed Professional Engineer in Virginia and a SWANA-certified Technical Associate of Transfer Station Systems.
Mr. Svorinich has worked in the environmental field since 1985, with an additional 10 years of experience working in the oil/petroleum refinery industry. His experience includes operations, construction, and engineering assistance with pollution control, remediation, and energy recovery systems, as well as petroleum refinery processes.
Mr. Svorinich has worked in the environmental field since 1985, with an additional 10 years of experience working in the oil/petroleum refinery industry. His experience includes operations, construction, and engineering assistance with pollution control, remediation, and energy recovery systems, as well as petroleum refinery processes. His environmental experience has primarily involved landfill environmental compliance monitoring, including surface emissions and flare source monitoring/testing and reporting, gas control/recovery, and associated landfill services, including post-closure care. Other environmental remediation project experience includes engineering assistance, operation, and construction of groundwater and leachate pump and treatment systems, volatile organic compound (VOC) vapor extraction, and air stripper systems.
Mr. Sykes is a Project Manager in our Omaha, Nebraska, office.
Mr. Tadelski is a Civil Engineer with experience in air management compliance for a diverse array of industries, including landfills, industrial printing facilities, spray coating and manufacturing facilities, furniture manufacturers, chrome plating facilities, and industrial heating plants. He previously served as a Compliance Engineer with the Wisconsin Department of Natural Resources (WDNR) Air Program. He has also conducted compliance evaluations under the Asbestos NESHAP of the Clean Air Act.
Mr. Tadelski is a Civil Engineer with experience in air management compliance for a diverse array of industries, including landfills, industrial printing facilities, spray coating and manufacturing facilities, furniture manufacturers, chrome plating facilities, and industrial heating plants. He previously served as a Compliance Engineer with the Wisconsin Department of Natural Resources (WDNR) Air Program. He has also conducted compliance evaluations under the Asbestos NESHAP of the Clean Air Act.
