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: January 1, 2011

Point of Contact:
Wilfredo Palomino
USEPA
290 Broadway
New York NY 10007-1866 
Tel: 212-637-4179 
Email: palomino.wilfredo@
epa.gov

IBM Corporation - East Fishkill
Hopewell Junction, NY


Hydrogeology:

The geology of the area is typified by folded and faulted Paleozoic sedimentary rocks overlain by unconsolidated glacial outwash deposits. Locally, the bedrock consists of Ordovician limestones and dolomites known as the Stockbridge limestone. Where outcrops occur on site and in the area the rocks dip 30 to 40 percent eastward. The rock is heterogeneously faulted and fractured, resulting in zones of high secondary porosity caused by dissolution processes. The bedrock surface at the facility is generally shallow, but very uneven, with elevations ranging from 50 to 250 feet above sea level.

Targeted Environmental Media:
  • - Dense Non-aqueous Phase Liquids (DNAPLs)
  • - Fractured Bedrock

Contaminants:

There are at least nine separate contaminant plumes in the overburden and four in the bedrock.

Major Contaminants and Maximum Concentrations:
  • - Tetrachloroethene (Not given)
  • - Trichloroethene (Not given)
  • - 1,2-Dichloroethene (Not given)
  • - Vinyl chloride (Not given)

Site Characterization Technologies:

No technologies selected.


Remedial Technologies:

  • - Pump and Treat
Comments:
Other contaminants of concern are chlorodifluoromethane and 1,1,2-Trichloro-1,2,2-trifluoroethane. The plumes are contained by six bedrock production wells that operate continuously and pump approximately 1.2 million gallons per day.
Remediation Goals:

New York State Groundwater Quality Standards.


Status:

The plumes are contained and with the presence of DNAPL the pumping is expected to continue for a long time.

http://www.epa.gov/region02/waste/fsibmhop.htm

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For more information on Fractured Bedrock, please contact:

Ed Gilbert
Technology Assessment Branch

PH: (703) 603-8883 | Email: gilbert.edward@epa.gov