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CLIENT FOCUS
Formed in 1991 by senior environmental consultants, EnviroGroup has always focused on one
thing - client service. We have worked on some of the largest environmental sites in
the country: numerous high-profile mine sites, century-old lead smelters in the middle of cities,
oil refineries with acres of free product, and DNAPL sites with groundwater plumes over a mile long.
But we are most proud of the projects that stayed small — because of our prompt
response and sound advice.
ENVIROGROUP OFFICES
EnviroGroup offices are located in Denver and Longmont, Colorado, Chicago, Illinois, Saratoga Springs, New York,
Seattle, Washington, and Lawrence, Kansas. Our professionals in each office serve clients across North America.
Go to our Contact page for address, phone number, and email
contact information.
OUR KEY PEOPLE
We are highly experienced environmental, civil, geotechnical and chemical engineers;
geologists, hydrogeologists, and geochemists; biologists and industrial hygienists; and
regulatory and GIS specialists, with over 15 years average experience. With consulting,
mining, and petroleum industry backgrounds, we understand that solutions must be practical
and make economic sense. Brief resume of key personnel are provided below.
David J. Folkes, P.E. — Principal
Mr. Folkes is a Registered Professional Engineer with over 25 years experience in
environmental and geotechnical consulting in the U.S. and Canada. As a Principal and
President of EnviroGroup Limited, he provides a variety of services to natural resource,
industrial and governmental clients across the country. Mr. Folkes has performed
environmental site assessments at a wide variety of industrial, commercial, and natural
resource sites with organic, petroleum, and metals impacts. He has managed groundwater
and soil investigation and remediation projects at numerous sites, including several
mining, smelting, and metals refining sites; major petroleum refinery sites; and some of
the largest groundwater solvent plumes in the country. He is skilled in the forensic
evaluation of the sources and causes of metals contamination in soils; solvent
contamination in groundwater; and investigation and mitigation of indoor air impacts
due to groundwater contamination. Mr. Folkes has provided federal and state regulators
with practical experience on vapor intrusion testing, mitigation, and community
interaction issues. Areas of research include background or indoor sources of solvents
in air, which can be mistaken for vapor intrusion, and groundwater to indoor air
correlations. He has published and presented papers on numerous environmental topics,
including groundwater and vapor intrusion remediation, and served as an expert witness
in both state and federal court, including testimony in three class action lawsuits.
Bence V. Close, P.E. — Principal
Bence is a Registered Professional Engineer with over 23 years of environmental consulting
experience in a wide variety of businesses, including energy and mineral resource development,
petroleum and chemical processing, utilities, waste management, manufacturing, agriculture,
water supply, land development, watershed management, and environmental compliance. He has
demonstrated success in assisting with clients on projects under the regulatory settings
of CERCLA, RCRA, NEPA, SMCRA, CWA, NRDA, and various State voluntary cleanup programs. He
has managed and performed large-scale, complex cleanup actions for numerous clients and
client groups, involving site characterization, feasibility studies, contaminant
culpability, public involvement, remedial design, environmental permitting, construction
contracting and management, litigation support, and expert witness testimony. He has
developed and implemented effective strategies for sites involving metals, petroleum
hydrocarbons, and chlorinated solvents. He has presented and published numerous papers
on various environmental topics and has served as an expert witness in federal court and
numerous state rulemakings.
Margaret (Poppy) Staub — Principal
Ms. Staub has over 14 years of experience in environmental compliance, Superfund site
management, pollution prevention practices and management systems development in the
mining and extractive metallurgical industries. Ms. Staub served as the Environmental
Engineer, Superfund Site Manager, and Globe Plant Manager for ASARCO, Inc. During her
tenure with Asarco, she gained experience with a wide variety of topics including RCRA,
CWA, and CAA compliance, environmental, safety and health management system development,
process management, business development, and community relations. In 2000, she
successfully implemented an environmental management system at a 114 year old manufacturing
facility and obtained ISO 14000 certification. She has been involved with numerous corporate
level projects designed to bridge agency/company relationships and has assisted in developing
and integrating corporate level management system procedures into plant level work practices.
Ms. Staub was also responsible for overseeing several multi-million dollar environmental
remediation projects in Denver, Golden, and Leadville including an innovative, voluntary
cleanup project in the Bonanza Mining District. Ms. Staub has prepared numerous professional
papers regarding mine drainage treatment, voluntary cleanup projects, public relations and
environmental, health and safety management systems. She has been a guest lecturer at the
Rocky Mountain Mineral Law Foundation, the Environmental Protection Agency and has been
asked to speak at several functions promoting the use of management systems as a method to
improve environmental compliance.
James B. Cowart, P.E. — Senior Project Manager
Mr. Cowart has 35 years of experience in the environmental disciplines of water, wastewater,
water resources, solid waste, indoor air pollution, hazardous waste, environmental assessments
and impact statements, due diligence, and assessment and remediation of soils and groundwater.
He has worked closely with clients in numerous industries including mining, propulsion, organic
chemicals, pesticides, timber products, printing and publishing, foods, beverages, fish processing,
oil and gas, transportation, metals finishing, pharmaceuticals, pyrotechnics, airports and
commercial development. He has provided technical assistance to Federal, State and County agencies.
He has international experience in South Africa, Botswana, Peru, Chile, Colombia, Mexico and Japan.
In addition, Mr. Cowart has four years of engineering management experience with the U.S. Army
Signal Corps and three years of graduate schooling and teaching positions. Mr. Cowart has
served as a project engineer, principal engineer, project manager or director, division manager,
branch office manager, chief operating officer, vice president and board of directors’ member in
several environmental consulting companies. He has managed approximately 1,000 projects ranging
from very small up to $15 million in size, involving over 500 man-years of work. Mr. Cowart has
authored more than a dozen papers, and provided litigation support as well as deposition or
testimony in more than 20 cases. He serves on the board of directors for several non-profit organizations.
Mr. Cowart specializes in several environmental consulting areas including indoor air/vapor intrusion
assessment and mitigation; active and abandoned mine permitting and reclamation; CERCLA/RCRA hazardous
waste investigation, feasibility, design, remedial action; industrial process waste and wastewater
control and treatment; watershed assessment and restoration; and expert testimony and litigation support.
Susan B. Welt Shearer, MPH, P.E. — Senior Project Manager
Ms. Welt Shearer is a registered professional engineer with an MS in environmental engineering
from Cornell, an MPH from the Rochester School of Medicine, and over 11 years experience in environmental
consulting and regulatory work. She was a senior sanitary engineer at the New York State Department of
Health providing oversight for vapor intrusion and other state lead sites. Prior to that, she worked for
major consulting firms in New York, leading the development of their vapor intrusion programs and managing
investigation and remediation projects at industrial, former manufactured gas plant, and Department of
Defense sites across the country. She is also a Fellow of the Centers for Disease Control and Prevention
Environmental Public Health Leadership Institute. Ms. Welt Shearer has extensive experience in design
engineering, development and oversight of company-wide and community health and safety programs,
stakeholder negotiations, and managing complex environmental projects. She has also authored numerous
papers and given presentations on a variety of topics including: vapor intrusion sampling, assessment,
and engineering mitigation techniques; risk based management of contaminated sediments; and in situ
remedial methods for contaminated sediments and soils.
Jeffrey P. Kurtz, Ph.D. — Senior Scientist
Dr. Kurtz has over 20 years experience as a consulting Geologist/Geochemist. He was an
Assistant Professor of Geology at the University of Colorado, where he was responsible for
graduate and undergraduate student instruction in the areas of: mineralogy, aqueous geochemistry,
ore deposits and field geology. Dr. Kurtz also performed independent research in the fields
of clay mineralogy and ore deposit geochemistry. Dr. Kurtz has designed regional exploration
programs, geophysical surveys, mapping programs, stream sediment sampling, soil sampling and
drilling programs for a number of mining companies including Battle Mountain Gold Company,
Summitville Consolidated Mining, Challenger Gold Company and Central Alaska Gold Company.
Statistical and spatial analysis of geochemical and geologic data was a major component of
this work. Dr. Kurtz has prepared numerous papers and given presentations on a variety of
topics, including mine site investigations, hydrothermal alteration related "background"
acidity and geochemistry, and background sources of indoor air chemicals at vapor intrusion
sites.
David W. Vaden, P.G.
Mr. Vaden is a registered professional geologist with over 15 years experience in the
performance and management of environmental projects for industrial, natural resources
and commercial clients across the US. He provides environmental site assessment, due
diligence, site investigation, site remediation, vapor intrusion evaluation, and other
services from EnviroGroup’s Seattle office. He has evaluated solvent, petroleum hydrocarbon
and metals impacts to soil and groundwater at sites across the US. Areas of expertise
include geochemistry, hydrogeochemistry, metals migration in groundwater and the vadose
zone, the design and administration of relational database management systems, and computer
programming.
Theodore E. Kuehster, P.E. — Senior Project Engineer
Mr. Kuehster is a registered civil engineer with 25 years experience in environmental
remediation and storm drainage analysis and design, including open channels and culverts,
detention ponds, and grading design. Mr. Kuehster has conducted remedial projects involving
groundwater interception, water treatment, soil remediation, and storm water control. He has
prepared designs for voluntary cleanup plans at several sites, for a storm water control
system at an organic chemicals plant in Texas to separate storm runoff from plant wash
water, and for modifications to an existing wastewater treatment plant to increase hydraulic
throughput and accommodate increased feedwater concentrations. Mr. Kuehster has completed
major drainage projects in the past including preparation of flood control master plans
and drainage designs for Colorado E-470.
Randy Putnam, CHMM, QEP, REM — Senior Engineer
Mr. Putnam has over 25 years of experience in environmental compliance management, health and safety,
training, process engineering and radiation safety at facilities ranging from a recycled paper mill,
rubber manufacturer, carton sealing tape manufacturer to a semi-conductor fabricator. This varied
background provided Mr. Putnam with experience in wastewater systems, air pollution control systems,
stormwater management, hazardous waste, CAA, CWA, RCRA, EPCRA, DOT Hazardous Materials shipping and
IATA Dangerous Goods, environmental, health and safety programs and auditing, process engineering,
pollution prevention, statistical process control, radiation safety, SPCC plans, MSDS management, DHS
CFATS, site investigations and remedial actions with exposure to PSM, RMP, CERCLA (Superfund) and TSCA
regulations. He developed policies, procedures, programs and training materials to implement the
environmental, health and safety programs of the facilities. He has been a respirator program manager,
radiation safety officer, Six Sigma Green Belt, and emergency response team manager. Mr. Putnam
responded to customer queries relating to the environmental and safety impacts of the products
manufactured at the facility requiring a knowledge of OSHA, IMDS, REACH, JGPSSI, FAA, RoHS, CONEG,
Prop 65, FDA and other industry and state standards. He developed data management systems to simplify
air and water permit and EPCRA compliance reporting. Mr. Putnam has had certifications for Certified
Environmental Inspector and Registered Transaction Specialist and is a retired Lieutenant Commander.
Mr. Putnam has presented papers on MACT compliance at technical seminars and presented evidence at a
state senate hearing. He worked with an industry association and the EPA during development of the
Paper and Other Web Coating MACT standard and as part of the Colorado Regulation 6 Critical Review
Team.
Eric Lovenduski — Project Manager
Mr. Lovenduski is a geologist with eight years experience in environmental consulting. He is
skilled at planning and completing complex environmental investigations and evaluating corrective
actions at Brownfield, RCRA, UST, and voluntary cleanup sites. Mr. Lovenduski has successfully
completed projects at active and inactive industrial sites, former manufactured gas plants (MGP),
and U.S. Department of Defense (DOD) facilities. He regularly coordinates all aspect of field
activities including permitting, subcontractors, and interaction with business and community
representatives. Mr. Lovenduski assists clients with Vapor Intrusion investigations and
mitigation; Phase II Remedial Investigations; Brownfield, UST and voluntary cleanup sites; Phase
I Environmental Site Assessments meeting EPA All Appropriate Inquiry (AAI) requirements; and New
York State Department of Environmental Conservation (NYSDEC) Brownfield, Inactive Site,
Remediation, and Spills Cleanup Programs.
Charoen Sanpawanitchakit, Ph.D. — Environmental Chemist
Dr. Charoen Sanpawanitchakit is an environmental chemist with over 8 years experience in
subsurface contaminant investigation and remediation studies. While earning his Ph.D. at
the Colorado School of Mines, Charoen investigated the fate and transport of uranium in
groundwater at a Uranium Mill Tailings Remedial Action (UMTRA) site. He is skilled in aqueous
chemistry, analytical chemistry, wastewater treatment, field site investigation, and
mathematical modeling. As a consultant, his investigation experience includes work at
petroleum chemical facilities, coal-burning power generating plants, and numerous manufacturing
plants, including the automotive, computer, and food products industries. Dr. Sanpawanitchakit
has conducted remediation at sites with chlorinated solvents and petroleum hydrocarbons using
excavation, dual-phase extraction, and pump-and-treat methods. Dr. Sanpawanitchakit has also
conducted evaluation, assessment, and optimization for treatment of wastewater and groundwater,
including treatment of 1,4-dioxane contaminated groundwater.
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Project Locations |
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EnviroGroup provides full environmental consulting services across North
America, including site assessments, audits, permitting, and multi-media
investigations and remediation. Centrally located in Denver, Colorado, our
core team of experts can be at any location across the country within a few hours.
Our network of subcontractors provides field labor and familiarity with local
conditions and regulatory requirements across the country. Through our strategic
alliance partners, we can provide services in fluent Spanish, with experience
throughout South America.
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EnviroGroup Offices |
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- Denver, CO
- Longmont, CO
- Chicago, IL
- Lawrence, KS
- Saratoga Springs, NY
- Seattle, WA
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