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: December 2, 2003

Point of Contact:
Jim Cutler
Virginia DEQ
629 East Main St., 4th Fl.
Richmond VA 23219 
Tel: 804-698-4498 
Email: jlcutler@
deq.state.va.us

Greenbrier Drycleaner
Chantilly, VA


Hydrogeology:

Sandstone which is firmly cemented and the water transmitting ability is primarily related to joints fractures and faults.

Targeted Environmental Media:
  • - Fractured Bedrock

Contaminants:

Major Contaminants and Maximum Concentrations:
  • - Tetrachloroethene (var)
  • - Trichloroethene (var)

Site Characterization Technologies:

No technologies selected.


Remedial Technologies:

  • - Chemical Oxidation (In Situ)
    • Permanganate
  • - Fracturing
  • - Multi Phase Extraction
Comments:
Dual phase extraction was conducted for almost two years after the bedrock was hydrofractured. The extent of hydrofracturing was limited due to site accessibility. The dual phase system was shut down to measure rebound. In March, 2003 sodium permanganate was injected.
Remediation Goals:

None provided


Status:

In Dec, 2003 permanganate was still observed in ground water samples. The consultant is waiting for the permanganate to be depleted.

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