You are here

Categorical Exclusion Determinations: B6.9

Existing Regulations

B6.9: Measures to reduce migration of contaminated groundwater
Small-scale temporary measures to reduce migration of contaminated groundwater, including the siting, construction, operation, and decommissioning of necessary facilities. These measures include, but are not limited to, pumping, treating, storing, and reinjecting water, by mobile units or facilities that are built and then removed at the end of the action.


  • April 29, 2015

    Convert 15 ABRP Wells From the Active SVE System to Microblower Baroball SVE and Convert Two Dry A-Area Groundwater Monitoring Wells to SVE Operation
    CX(s) Applied: B6.9
    Date: 04/29/2015
    Location(s): South Carolina
    Offices(s): Savannah River Operations Office

  • May 19, 2014

    Well Pump Tests Phase II in Sandia and Mortandad Canyons
    CX(s) Applied: B6.9
    Date: 05/19/2014
    Location(s): New Mexico
    Offices(s): Los Alamos Site Office

  • September 19, 2012

    Interim Corrective Measures to Control Migration of Contaminated Groundwater
    CX(s) Applied: B6.9
    Date: 09/19/2012
    Location(s): California
    Offices(s): Berkeley Site Office

  • December 13, 2011

    Install Purge Water Management Unit(s) at Chemicals, Metals, and Pesticides Pits Monitoring Well(s)
    CX(s) Applied: B6.9
    Date: 12/13/2011
    Location(s): South Carolina
    Offices(s): Savannah River Operations Office

  • May 13, 2011

    Silver Chloride Injection at the F Area Hazardous Waste Management Facilities Barrier Wall
    CX(s) Applied: B6.9
    Date: 05/13/2011
    Location(s): Aiken, South Carolina
    Office(s): Environmental Management, Savannah River Operations Office

  • April 26, 2011

    200 Area Tank Farm Interim Surface Barriers
    CX(s) Applied: B6.9
    Date: 04/26/2011
    Location(s): Richland, Washington
    Office(s): Environmental Management, Office of River Protection-Richland Office

  • June 28, 2010

    Installation and Operation of the North Plateau Full Scale Permeable Treatment Wall
    CX(s) Applied: B1.6, B1.13, B6.1, B6.9
    Date: 06/28/2010
    Location(s): West Valley, New York
    Office(s): West Valley Demonstration Project