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: February 10, 2011

Point of Contact:
Michael Poetzsch
USEPA 290 Broadway
New York NY 10007-1866 
Tel: 212-637-4147 
Email: poetzsch.michael@

RealCo Inc.
Watervliet, NY


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)

Site Characterization Technologies:

No technologies selected.

Remedial Technologies:

  • - Pump and Treat
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).
Remediation Goals:

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.

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