Subsurface geology underlying the site includes in descending sequence fill, alluvial sediments, clay till, and shale bedrock. Within the main plant area bedrock is present at depths ranging from one to 42 feet bgs.
The first continuous water bearing zone is typically within the alluvium at depths of 10-14 feet bgs. Bedrock is a significant water bearing zone and flow is in secondary porosity (fractures). Flow direction in the bedrock is generally east.
Targeted Environmental Media:
 Fractured Bedrock - Light Non-aqueous Phase Liquids (LNAPLs)
A description of the plume extent is not given.
Major Contaminants and Maximum Concentrations:
- Chromium (86,500 µg/L)
- Nickel (334,000 µg/L)
- Nitrate (11,000,000 µg/L)
- Fluorides (250,000 µg/L)
- Arsenic (370 µg/L)
- Molybdenum (2,600 µg/L)
- Beryllium (139 µg/L)
- Sulfate (3,600,000 µg/L)
No technologies selected.
- Pump and Treat
Comments:
A pump and treat system (two overburden and two bedrock extraction wells)was established in 1995. According to the Region 2 web page for Realco this system continues to operate (2009).
New York State Water Quality Standards.
Concentrations of contaminants have fallen considerably since the pump and treat system began. However many are still above cleanup goals.
http://www.epa.gov/region02/waste/fsrealco.htm
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