Drycleaner Site Profiles
Bowen Cleaners, Greenville, North Carolina
Description
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Stand-alone 3,000 ft2 building currently used as a drop-off store.
Active PCE drycleaner operated between 1988 to 2001 using 1 50# Dry-to-Dry machine.
Surrounding property is retail and flanked by shopping centers. Remediation Status: In groundwater monitoring |
Contaminant | Media | Concentration (ppb) | Nondetect |
---|---|---|---|
cis-1,2-Dichloroethene | groundwater | ||
cis-1,2-Dichloroethene | soil | ||
Tetrachloroethene (PCE) | groundwater | ||
Tetrachloroethene (PCE) | soil | ||
Trichloroethene (TCE) | groundwater | ||
Trichloroethene (TCE) | soil | ||
Vinyl Chloride | groundwater | ||
Vinyl Chloride | soil |
Deepest Significant Groundwater Contamination: | ||
Plume Size: | Plume Length: 230ft Plume Width: 170ft |
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Average Depth to Groundwater: | 4.6ft |
Dark gray-brown SILTY CLAY Depth: 0-8ft bgs 8ft thick Conductivity: 0.28ft/day Gradient: 0.03ft/ft |
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Orange-gray, stiff CLAY Depth: 8-15ft bgs 7ft thick |
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Gray, fine-medium SILTY SAND Depth: 15-18ft bgs 3ft thick |
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Has the potential for vapor intrusion (VI) been evaluated? |
No |
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Has a vapor mitigation system been installed? |
Cleanup
Goals: |
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Remedy Level: |
Interim Action |
In Situ Biostimulation |
Why the technology was selected: Date implemented: Final remediation design: Results to date: Next Steps: Cost to Design and Implement: |
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In Situ Zero Valent Iron |
Why the technology was selected: Date implemented: Final remediation design: Results to date: Next Steps: Cost to Design and Implement: |
Cost
for Assessment: |
$63,000 Groundwater/soil contamination delineation. |
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Cost
for Operation and Maintenance: |
$40,000 Installation of additional monitoring wells. Downhole water quality data recordders. 1 year monitoring and sampling. Analysis to include analysis for chlorinateds, natural attenuation parameters, fatty acid analysis. | |
Total
Costs for Cleanup: |
$103, 000 |
After 2 years of sampling groundwater PCE concentrations have been significantly reduced outside of the area of soil contamination. Overlying soil contamination is contributing PCE contamination to groundwater in the source area. Reduction took longer than anticipated. |
Scott Stupak Project Manager Scott.Stupak@ncdenr.gov |
October 6, 2009 EHC Pilot Test Report February 17, 2010 Post Injection Report November 15, 2011 Final Groundwater Monitoring Report |