Sandstone which is firmly cemented and the water transmitting ability is primarily related to joints fractures and faults.
Targeted Environmental Media:
 Fractured Bedrock
Major Contaminants and Maximum Concentrations:
- Tetrachloroethene (var)
- Trichloroethene (var)
No technologies selected.
- Chemical Oxidation (In Situ)
- 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.
None provided
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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