U.S. EPA Contaminated Site Cleanup Information (CLU-IN)


U.S. Environmental Protection Agency
U.S. EPA Technology Innovation and Field Services Division

Fractured Bedrock Project Profiles

Last Updated: January 21, 2004

Point of Contact:
George Maalouf
Rogers & Callcott
718 Lowndes Hill
Greenville NC 29607 
Tel: 864-232-1556 
Email: george.maalouf@
rogersandcallcott.com

Manufacturing Facility
Oconee County, SC


Hydrogeology:

Saprolite overlying fractured amphibole gneiss. TCE was found in two aquifers, one in saprolite (26.2 bgs) and one in bedrock (34.4 bgs).

Targeted Environmental Media:
  • - Fractured Bedrock

Contaminants:

The treatment area in the bedrock was 1,575 sq ft.

Major Contaminants and Maximum Concentrations:
  • - Trichloroethene (8,000 µg/L)
  • - 1,1-Dichloroethene (240 µg/L)
  • - Vinyl chloride (18 µg/L)

Site Characterization Technologies:

No technologies selected.


Remedial Technologies:

  • - Bioremediation (In Situ)
    • Reductive Dechlorination (In Situ Bioremediation)
Comments:
The application in the bedrock was to create a treatment wall by drilling injection at ten ft intervals downgradient of the source area.
Remediation Goals:

This was a pilot test.


Status:

In almost two years of treatment concentrations of TCE in the bedrock decreased 99.3% to 60 ug/L. Concentrations of DCE and VC increased. In Jan. 2004, full-scale treatment is pending.

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For more information on Fractured Bedrock, please contact:

Ed Gilbert
Technology Assessment Branch

PH: (703) 603-8883 | Email: gilbert.edward@epa.gov