State Coalition for Remediation of Drycleaners Site Profiles
Colonial Cleaners (NY), Tompkins County, New York
Description
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| Colonial Cleaners is a drycleaning business located about half a mile north of the Village of Lansing, NY, on Route 34 (East Shore Drive). Perchloroethylene (PCE) was used as the drycleaning solvent in the business operation. A sample taken from an on-site drinking water well confirmed PCE contamination at a level exceeding 2,000 µg/L. A neighbor's well located slightly downgradient from the property was sampled by the Tompkins County Health Department and was also found to be contaminated at 31.9 µg/L. The Village of Lansing's water supply main on East Shore Drive has been extended and connected to the affected residences. A third downgradient homeowner's well that is not currently being used for drinking water was also sampled and found to be contaminated at lower levels. Property inspections, conducted by Department of Environmental Conservation and Department of Health representatives in 1990, noted the presence of distressed vegetation in one portion of the property, and a faint odor of PCE near the building. No vapor migration into the building or into adjacent structures has been identified to date. |
Contaminants
Contaminants present and the highest amount
detected in both soil and groundwater.
| Contaminant | Media | Concentration (ppb) | Nondetect |
|---|---|---|---|
| Tetrachloroethene (PCE) | groundwater | 9,600 ppb | |
| Tetrachloroethene (PCE) | soil | 440,000 ppb | |
| Trichloroethene (TCE) | groundwater | 90 ppb | |
| 1,2-Dichloroethene | groundwater | 140 ppb |
Site Hydrology
| Deepest Significant Groundwater Contamination: | 12ft bgs | |
| Plume Size: | Plume Length: 200ft Plume Width: 250ft |
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| Average Depth to Groundwater: | 6ft |
Lithology and Subsurface Geology
| topsoil Depth: 0.5-1ft bgs 0.5ft thick |
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| Low permeability silty clay Depth: 1-1.5ft bgs 0.5ft thick |
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| low permeability gravely silty clay Depth: 1.5-2.5ft bgs 1ft thick |
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| fractured bedrock Depth: 2.5ft bgs |
Pathways and DNAPL Presence
 Groundwater SedimentsSoilDNAPL Present |
Remediation Scenario
Cleanup
Goals: |
5 µg/L for water; 1.4 mg/kg for soil |
Technologies
In Situ Soil Vapor Extraction |
Date implemented: Final remediation design: Results to date: Next Steps: Cost to Design and Implement: |
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Ex Situ Pump and Treat |
Date implemented: Final remediation design: Results to date: Next Steps: Cost to Design and Implement: |
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Ex Situ Soil Vapor Extraction |
Date implemented: Final remediation design: Results to date: Next Steps: Cost to Design and Implement: |
Costs
Cost
for Assessment: |
not available | |
Cost
for Operation and Maintenance: |
not available | |
Total
Costs for Cleanup: |
Contacts
| Jim Harrington New York Department of Environmental Conservation 11th Floor 625 Broadway Albany, New York 12233-7012 518-402-9755 518-402-9722 (fax) jbharrin@gw.dec.state.ny.us |
Site Specific References
| available on microfilm 1. January 1996, Focused Remedial Investigation Workplan, C&H Engineers P.C. 2. June 1997, Focused Remedial Investigation Report, C&H Engineers P.C. 3. January 1998, IRM Data Report, C&H Engineers P.C. 4. August 1998, IRM Data Report, C&H Engineers P.C. 5. February 2001, Proposed Remedial Action Plan 6. March 2001, Record of Decision and Responsiveness Summary |
