About Us
About Us

Professional Services – Quality Solutions

Since our founding in 1988, TVG has performed thousands of Environmental Site Assessments for satisfied clients across the country. We are a Drycleaner-Approved Contractor and are approved by the Tennessee Department of Environment & Conservation, Division of Underground Storage Tanks as a “Corrective Action Contractor”.

Our team is composed of licensed, trained professionals with broad experience in their environmental discipline. We are licensed professional engineers, hazardous material and asbestos response managers and specialists in indoor air quality and soil and groundwater sampling. Each member of team is qualified for complex environmental work through extensive OSHA HAZWOPER training.

We assist our clients by providing only what is necessary to achieve the appropriate desired end point of each project.

Rob Alley, P.E.

Rob Alley, P.E.

Environmental Professional

A principal of the firm with over 25 years of experience, has a Bachelor of Engineering Degree in Civil Engineering from Vanderbilt University, and a Master of Science in Engineering (Civil Engineering) from the University of Texas at Austin.

  • Licensed Professional Engineer in Tennessee and 19 other states
  • Environmental Professional as set forth in 40 CFR #312. 10(b)
  • Environmental Site Assessments (Phase I and II)
  • Environmental Risk Assessment Analysis
  • Hazardous Waste and Emergency Response
  • Brownfield Redevelopment
  • Special Expertise in Hexavalent Chrome Investigation and Remediation

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Malcolm V. Pfotenhauer, P.E., CHMM, REPA

Malcolm V. Pfotenhauer, P.E., CHMM, REPA

President and Environmental Professional

A principal of the firm with over 50 years of experience, has a Bachelor of Science Degree in Civil & Structural Engineering from the University of Natal, Durban, and Republic of South Africa. Mr. Pfotenhauer is involved in all TVG projects.

  • Licensed Professional Engineer (Tennessee)
  • Environmental Professional as set forth in 40 CFR #312. 10(b)
  • Certified Hazardous Materials Manager
  • Registered Environmental Property Assessor
  • EPA-AHERA Accredited Asbestos Inspector, Asbestos Management Planner, and
  • Asbestos Response Action Designer
  • 40 Hour OSHA HAZWOPER Training
  • License holder for TVG Environmental, Inc. as Tennessee Contractor, subgroup S-Environmental Remediation

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Tatum Stewart, P.G.

Tatum Stewart, P.G.

Environmental Professional

With over fifteen years of experience, has a Bachelor of Science Degree in Environmental Geology with class work in Environmental Geology, Chemistry, and Geography from the University of Tennessee Chattanooga. Mr. Stewart has extensive experience with UST Systems, Testing, Regulations and Compliance.

  • Licensed Professional Geologist (Tennessee)
  • Environmental Professional as set forth in 40 CFR #312. 10(b)
  • Licensed Well Driller (Tennessee)
  • EPA AHERA Accredited Asbestos Inspector
  • 40 Hour OSHA HAZWOPER Training

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Byron Brown

Byron Brown

Environmental Professional

With over eight years of experience, has a Bachelor of Science Degree in Geology (emphasis in Environmental Geology), from Austin Peay State University, 2001.

  • Environmental Professional as set forth in 40 CFR #312. 10(b)
  • 40 Hour OSHA HAZWOPER Training

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Justun Durham

Justun Durham

Environmental Professional

With over six years of experience, has a Masters of Science Degree in Biology, from Tennessee Technological University in Cookeville, Tennessee. Mr. Durham manages a number of drycleaner sites in the TDEC Drycleaner Environmental Response Program. Mr. Durham is also highly experienced in indoor air quality investigations.

  • Environmental Professional as set forth in 40 CFR #312. 10(b)
  • 40 Hour OSHA HAZWOPER Training

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Kim Carney

Kim Carney

Office Manager

Have a project that we can help with? We want to hear from you. In the face of rapid environmental, economic, and societal changes, our mission is simple – provide highly professional environmental services to its clients in all cases. Contact us today to get started on your project.

Let’s Get Started »