The overburden at the plant is thin ranging from 4 to 10.6 feet below ground surface (bgs). It consists of fill overlying glacial deposits. The underlying bedrock is the Lockport Dolomite which is 150 feet or greater.
The first saturated zone consists of the lower 2 feet of overburden plus the "A" zone of fractured bedrock. Other fracture zones are the "B" zone located between 16 and 21 feet bgs, The "C" zone between approximately 25 and 35 feet bgs, and the "CD" zone between 45 and 50 feet bgs.
Targeted Environmental Media:
 Dense Non-aqueous Phase Liquids (DNAPLs) - Fractured Bedrock
The plume is being contained within the site boundaries and is in the CD zone vertically. Highest concentrations are in the A and B zones.
In 1999 total aromatic hydrocarbon concentrations in the A zone exceeded 18,000,000 microgram/liter (ug/L).
In 1999 total aromatic hydrocarbon concentrations in the B zone exceeded 338,000 ug/L and C-CD zone 15.000 ug/L.
Major Contaminants and Maximum Concentrations:
- Mercury (Not given)
- Benzene (Not given)
- Chlorobenzene (Not given)
- 1,2-Dichlorobenzene (not given)
- 1,3-Dichlorobenzene (Not given)
- 1,4-Dichlorobenzene (Not given)
- 1,2,4-Trichlorobenzene (Not given)
- Phenol (Not given)
- 2,4,5-Trichlorophenol (Not given)
- Methanol (Not given)
- Coring
- Pump and Treat
Comments:
The pump and treat system consists of 5 wells in the A-B zones and 1 production well in the C-CD zone and deeper. The system began operation in 1998. The treatment system uses activated carbon.
Cleanup goals are the NY DEC Groundwater Protection Standards http://www.epa.gov/region2/waste/olin750.pdf
Continue pump and treat.
http://www.epa.gov/region2/waste/fsolin.htm
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