Technology:
Pump and Treat
- Groundwater is extracted using 1 well, located on site, at an average total pumping rate of 11.2 gpm
- Extracted groundwater is treated with air stripping and discharged to a surface water under a SPDES permit
- An interceptor drain was artificially created in the bedrock around the extraction well using controlled blasting techniques
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Cleanup Authority:
RCRA - Corrective Action
EPA Point of Contact:
Michael Infurna
U.S. EPA Region 2
290 Broadway
New York, NY 10007-1866
(212) 264-6150
State Point of Contact:
Larry Thomas
New York State Department
of Environmental Conservation (NYSDEC)
50 Wolf Road
Albany, NY 12233-7252
(518) 457-9253 | Site Contact:
Paul William Hare
Corporate Environmental Programs
General Electric Company
One Computer Drive
South Albany, NY 12205
(518) 458-6613 |
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Contaminants:
Chlorinated solvents
- Maximum concentrations detected in March 1988 were TCE (70,000 mcg/L) and 1,2-DCE (23,000 mcg/L) |
Waste Source:
Leaks from surface impoundments/ drying beds |
Type/Quantity of Media Treated:
Groundwater
- 50.1 million gallons treated as of December 1997
- DNAPL suspected in groundwater at this site
- Groundwater is found at 10 ft bgs
- The extraction well is located in 1 aquifer; the geology at this site was reported as very complex
- Hydraulic conductivity ranges from 0.65 to 0.93 ft/day |
Purpose/Significance of Application:
RCRA corrective action site with relatively low groundwater flow; greater than 90% reduction in average concentrations of contaminants. |
Regulatory Requirements/Cleanup Goals:
- Cleanup goals were set at state groundwater standards as follows: TCE (5 mcg/L), cis-1,2-DCE (5 mcg/L), TCA (5 mcg/L), and vinyl chloride (2 mcg/L).
- The cleanup goals must be met in the single recovery well at the site and in point-of-exposure wells, of which there are currently 17.
- A goal of the recovery system is to achieve hydraulic containment of the plume. |
Results:
- Concentrations of contaminants decreased by more than 80% from 1987 to 1997, but remain above cleanup goals.
- Although contaminants have been detected in off-site wells, NYSDEC and the owner/operator have concluded that the plume had been contained and the off-site contamination was believed to be residual contamination prior to pump and treat. The addition of a new extraction well and a treatment system is currently being evaluated.
- From 1988 to 1996, the system removed 842 pounds of contaminants from the groundwater. |
Cost Factors:
- Estimated costs for pump and treat were $2,163,000 ($879,000 in capital and $1,284,000 in O&M), which correspond to $47 per 1,000 gallons of groundwater extracted and $2,569 per pound of contaminant removed.
- Building an enclosure for the treatment system was a substantial cost (about 23% of capital); however, the efficiency of the overall system has improved, especially in the winter months, and less time is needed for shutdown due to inclement weather. |
Description:
The JMT Facility was operated as an appliance manufacturing facility by G.E. Company from 1949 to 1984 and by Black and Decker from 1984 to 1986. JMT Properties, Inc., is the current owner of the site and leases the facility to Kleen-Brite. Kleen-Brite uses the facility for packaging and distributing household products such as laundry detergent and bleach. G.E. and Black and Decker operated an on-site RCRA treatment, storage, and disposal facility (TSDF) under interim status. In 1984, routine sampling revealed elevated levels of halogenated VOCs in the groundwater at the site. In August 1987, Black and Decker closed the regulated units and, in early 1988, initiated a corrective measures program for groundwater. In 1987, Black and Decker submitted a RCRA Post-Closure Permit application to NYSDEC; the permit was issued in April 1994.
The groundwater extraction system consists of one recovery well installed in 1987 as an interceptor well at the leading edge of the plume; the well placement was designed to prevent additional contaminants from migrating off site. To increase the degree of hydraulic conductivity and the interconnection in the bedrock fractures in the extraction well area, an interceptor drain was artificially created in the bedrock around the extraction well. The drain was created using controlled blasting techniques and rubblizing the upper portion of the bedrock. Data indicate that the pump and treat system has reduced the contaminant concentrations in the plume, however concentrations in much of the plume remain above the cleanup goals. |
