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Thank you for your interest in the Ground Water and Ecosystem Restoration research web site. The National Risk Management Research Laboratory welcomes your comments and strives to respond to every comment with an answer or an appropriate referral as quickly as possible. Most comments will be responded to within 10 business days. While we cannot guarantee responses to all comments, we will attempt to provide information or forward your comment to appropriate personnel, whenever feasible. We cannot respond to comments requesting information on draft EPA regulations, guidance, policy statements, or litigation of any kind.

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Phone
Rebecca Foster
Phone: 580-436-8750
Fax: 580-436-8597

Debbie Westerman, Webmaster
Phone: 513-569-7364
Fax: 513-569-7585
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Mail
Send regular or certified mail to:
EPA National Risk Management Research Laboratory
Ground Water and Ecosystems Restoration Division (GWERD)
P.O. Box 1198
Ada, Oklahoma 74821-1198
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Use the form below to send us a comment or question. If your browser doesn't support forms, you can e-mail your comment to Rebecca Foster or Debbie Westerman.

Staff Directory


Name Title Phone Areas of Expertise/Research
Acree, Steven Hydrologist 580-436-8609
  • Permeable reactive barriers
Adair, Cherri Environmental Specialist 580-436-8969
  • Monitored natural attenuation
  • Fuel oxygenates
  • Biofuels
Beak, Doug Geochemist 580-436-8813
  • Arsenic in drinking water
  • Permeable reactive barriers
  • Monitored natural attenuation
  • Nanotechnology
  • Water quality and availability
Brooks, Michael Environmental Engineer 580-436-8982
  • Dense nonaqueous-phase liquids
  • Flux-based site management
Burden, David Hydrologist 580-436-8606
  • Decision-support systems
Callaway, Lynda Chemist 580-436-8707
  • Soil and water sample analysis
Canfield, Tim Ecologist 580-436-8535
  • Wetland restoration
  • Decision-support systems
Costantino, Lisa Hydrologic Technician 580-436-8642
  • Lab & field technician
Davis, Eva Hydrologist 580-436-8548
  • Thermal remediation
DiGiulio, Dominic Environmental Engineer 580-436-8605
  • Geologic sequestration of carbon
  • Gas and vapor intrusion
Faulkner, Barton Hydrologist 580-436-8530
  • Watershed management
  • Nitrogen management
  • Decision-support systems
Foley, Gary Acting Division Director, Ground Water & Ecosystems Restoration Division 580-436-8518  
Forshay, Ken Ecologist 580-436-8912
  • Nitrogen management
  • Riparian zone and stream restoration
Foster, Rebecca Technology Transfer Specialist 580-436-8750
  • Communications
  • Facilitator
Gonsoulin, Mary Microbiologist 580-436-8601
  • Thermal remediation
  • Chemical oxidation
  • In situ aquifer redox modification
Groves, Justin Hydrologic Technician 580-436-8738
  • Field technician
Hargrove, Kristie Physical Science Technician 580-436-8578
  • Field technician
  • General Parameters Laboratory technician
Hawthorn, Steve Branch Chief, Technical and
Administrative Support
Branch
580-436-8511
Huang, Junqi Hydrologist 580-436-8915
  • Geologic sequestration of carbon
  • Dense nonaqueous-phase liquids
  • Flux-based site management
Huling, Scott Environmental Engineer 580-436-8610
  • In situ chemical oxidation
Hutchins, Stephen Environmental Scientist 580-436-8563
  • Concentrated animal feeding operations
Jewell, Ken Environmental Scientist 580-436-8985
  • Natural attenuation of methyl tertiary butyl ether
  • Implementation/compliance of monitoring wells
  • Field sampling and analysis
Jewett, David Branch Chief, Subsurface Remediation Branch 580-436-8560
  • Site characterization techniques
  • Contaminant fate and transport
  • Groundwater flow
  • Solute transport modeling
  • Groundwater/surface water interactions
Jones, Kyle Physical Science Technician 580-436-8873
  • In situ chemical oxidation
  • In situ chemical reduction
  • Permeable reactive barriers
Jorgensen, Eric Ecologist 580-436-8545
  • Ecosystem restoration
  • Brownfield restoration and redevelopment
  • Exposure of ecosystems to low levels of nitrate
Keeley, Ann Branch Chief,
Ecosystem and Subsurface
Protection Branch
580-436-8995
  • Combined treatment technologies
Lee, Tony Environmental Scientist 580-436-8890
  • Arsenic, chromium, and precipitate identification in sediment
  • Iron filing samples in permeable reactive barriers
  • Solid-phase characterization
  • Sampling techniques at concentrated animal feeding
    operations
Ludwig, Ralph Environmental Scientist 580-436-8603
  • In situ chemical reduction
McNeil, Mary Sue Program Analyst 580-436-8711  
Miller, Dennis Chemical Engineer 580-436-8567
  • Bioremediation of contaminated aquifers
Mravik, Susan Soil Scientist 580-436-8553
  • Nanotechnology
  • Concentrated animal feeding operations
Neill, Russell Biological Science Technician 580-436-8592
  • Laboratory analysis and equipment maintenance
  • Well installation
  • Soil and water sampling support
Paul, Cynthia Environmental Scientist 580-436-8556
  • Monitored natural attenuation
Ross, Randall Hydrologist 580-436-8611
  • Permeable reactive barriers
  • Water quality and availability
Skender, John Hydrologic Technician  580-436-8515
  • Field technician
Smith, Garmon Safety, Health, and
Environmental Management
Program (SHEMP) Manager
580-436-8565
  • Safety and health
  • Environmental compliance
  • Chemical inventory system
  • Radiation safety
Smith, Kelly Branch Chief, Applied Research & Technical Support Branch 580-436-8805   
Su, Chunming Soil Scientist 580-436-8638
  • Nanotechnology
  • In situ chemical reduction
Vandegrift, Steve Quality Assurance Manager 580-436-8684
  • Gas chromatography with emphasis on volatile organics
    and dissolved gasses
Weaver, Jim Hydrologist 580-436-8550
  • Vapor Intrusion
  • Modeling
White, Mark Environmental Scientist 580-436-8709
  • Effect of concentrated animal feeding operations on
    groundwater quality
  • Antibiotic extraction and quantification methods
Wilkin, Richard Geochemist 580-436-8874
  • Permeable reactive barriers
  • Monitored natural attenuation
  • Geologic sequestration of carbon
Wilson, John T Microbiologist 580-436-8534
  • Permeable reactive barriers
  • Monitored natural attenuation
  • Fuel oxygenates
  • Biofuels
Wolfe, Amy Environmental Scientist 580-436-8997
  • Monitored natural attenuation
Wood, Lynn Soil Scientist 580-436-8552
  • Dense nonaqueous-phase liquids
  • Flux-based site management

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David Burden

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