EPA/601/F-16/002
                                                                                    July 2016
   &EPA
 www.epa.gov/research
science   in   ACTION
INNOVATIVE RESEARCH FOR A SUSTAINABLE FUTURE
                       err Environmental
 Research  Cent
aAda, OK
Introduction
The Robert S. Kerr Environmental Research Center
(RSKERC) in Ada, Oklahoma, is EPA's center of expertise
for groundwater remediation and ecosystem restoration
research. RSKERC provides critical research in response
to EPA office, partner, and stakeholder needs. This
research is led by the Ground Water and Ecosystems
Restoration Division (GWERD), an EPA research and
development division headquartered in RSKERC.
GWERD directly supports three of EPA's six National
Research Programs that provide the scientific foundation
needed to protect public health and the environment:
   Sustainable and Healthy Communities
   Safe and Sustainable Water Resources
   Chemical Safety for Sustainability

  GWERD scientist analyzing water samples for nitrate/nitrite

          U.S. Environmental Protection Agency
          Office of Research and Development
                       Facility and Staff
                       Main campus: The 16-acre main campus includes the
                       RSKERC building, the annex, and an addition containing
                       the library and conference center. It also includes facilities
                       for storing compressed gases, bulk chemicals and
                       hazardous waste. Combined it contains over 80,000 ft2 of
                       laboratory, office, storage, and support space.

                       Gaar Corner: RSKERC's 110-acre field site, located 14
                       miles west of the main campus, provides an additional
                       3,000 ft2 of research, laboratory, shop and storage space.

                       Staff: RSKERC houses 46 federal employees and about
                       45 contractors, students,  and post-docs. Over 80% are
                       research staff. The remainder provide critical technical and
                       administrative support.
                       Capabilities
                       RKSERC contains state-of-the-science laboratories,
                       analytical equipment, instrumentation, and field equipment
                       used to study the transport and transformation of
                       contaminants in soil, groundwater, and surface water.
                       Field equipment for specialized subsurface
                       investigations are maintained for subsurface
                       investigations of soil, subsoil, vadose zone, and
                       groundwater. These include geotechnical probes for rotary,
                       direct-push, and percussion techniques to explore and
                       sample the subsurface environment.
                       General Parameters Laboratory is equipped with capillary
                       ion electrophoresis and flow injection analyzers used to
                       analyze water samples and soil extracts for nutrients and
                       other constituents. It contains mass spectrometers used to
                       measure stable isotopes and employs automated techniques
                       for carbon analysis of solid and liquid samples.

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  RSKERC Capabilities (Cont.)
Technical Support and Assistance
  Scanning Electron Microscope (SEM) Laboratory
  houses SEM/Energy Dispersive X-Ray (EDX)
  microscopes used to examine a wide range of sample
  types and element concentrations and their spatial
  distributions in solid samples.
  Trace Gas Laboratory is equipped with gas
  chromatographs and mass spectrometers used to
  analyze water samples for dissolved gases and soil and
  water samples for greenhouse gases.
  Metals Laboratory contains inductively coupled
  plasma (ICP)-optical emission spectrometry and ICP-
  mass spectrometry instruments  used to analyze aque-
  ous and solid samples for trace  metals and metalloids.
  Gaar Corner includes a mixture of woodlands, open
  fields, and ponds for ecosystem and groundwater
  research studies. It contains three logging wells, a
  calibration well, three monitoring wells, and a leak
  test well for testing  equipment to assess well integrity.
Science Contributions
The Ground Water Technical Support Center (GWTSC),
headquartered in RSKERC, provides technical support and
assistance on remediation of groundwater and subsurface
contamination to EPA and EPA partners. GWTSC technical
assistance activities focus on assessing and cleaning up
groundwater, aquifer materials, and soils. GWTSC's field
scientists and technicians travel nationwide to drill and in-
stall monitoring wells, gather soil core samples, and sample
groundwater. Model expertise is provided to EPA and other
users by the Center for Subsurface Modeling Support.

                                                        GWERD scientists installing monitoring wells in Rhode Island
RSKERC's research supports the development of strategies and technologies to protect and restore groundwater, surface
water, and ecosystems affected by human-made and natural events. RSKERC researchers develop technologies and
strategies that lay the groundwork for new policies and procedures needed to assess, protect, and cleanup contaminated
water resources and ecosystems.
Active research topics include:
    Private drinking water well vulnerability to
    contamination from leaking underground storage tanks.
    Tools to estimate contaminant concentrations and
    movement to improve site cleanup.
    Effects of green infrastructure stormwater controls on
    the subsurface environment.
    Improved guidelines for aquifer exemptions granted at
    subsurface mining systems.
    New and improved technologies and strategies to
    assess and clean up contaminated sites.
    Models to understand potential sources of nitrogen
    enrichment in watersheds.
    Decision support systems and models to understand
    and quantify final ecosystem goods and services.
    Fertilizer management effects on nitrate in
    groundwater.
    Fate and transport of nanomaterials in the subsurface.
           U.S. Environmental Protection Agency
           Office of Research and Development
Notable scientific products and achievements include:
   Case studies addressing hydraulic fracturing impacts
   on drinking water at five sites.
   Pioneering or testing many of the modern techniques
   used to clean up Superfund sites and other
   contaminated environments.
       Improved cleanup techniques for non-aqueous
       phase liquids in subsurface environments.
       Advances in the use of chemical oxidation,
       chemical raduction, bioremediation, thermal
       treatment, and nanomaterials.
    -   Permeable reactive  barriers and monitored  natural
       attenuation to remediate metal, chlorinated  solvent,
       and other organic pollutant contamination.
   Pioneering or testing new techniques to achieve Clean
   Water Act Goals.
       Pinpointing the effects of concentrated animal
       feeding operations on groundwater quality.
       New stream, floodplain, and riparian zone
       restoration techniques.

       RSKERC Contact:
       Rebecca Foster, foster.rebecca@epa.gov

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