State Coalition for Remediation of Drycleaners Site Profiles
Dry Clean USA #11401, Boca Raton, Florida
Description
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| This is an active perchloroethylene (PCE) drycleaning facility that has been in operation since 1982. The nearest public supply well is approximately 1,500 ft southwest of the facility. Contaminant source areas include the soils beneath the facility floor slab near the drycleaning machine and the stormwater drain. Remediation Status: In groundwater monitoring |
Contaminants
Contaminants present and the highest amount
detected in both soil and groundwater.
| Contaminant | Media | Concentration (ppb) | Nondetect |
|---|---|---|---|
| cis-1,2-Dichloroethene | groundwater | 2,177 ppb | |
| 1,1-Dichloroethene | groundwater | 60 ppb | |
| Tetrachloroethene (PCE) | groundwater | 27,600 ppb | |
| Tetrachloroethene (PCE) | soil | 3,200 ppb | |
| Trichloroethene (TCE) | groundwater | 8,120 ppb | |
| trans-1,2-Dichloroethene | groundwater | 103 ppb |
Site Hydrology
| Deepest Significant Groundwater Contamination: | 85ft bgs | |
| Plume Size: | Plume Length: 640ft Plume Width: 150ft Plume Thickness: 90ft |
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| Average Depth to Groundwater: | 7ft |
Lithology and Subsurface Geology
| Fine-grained sand & sandy clay Depth: 0-4ft bgs 4ft thick Conductivity: 71.7ft/day Gradient: 0.0002ft/ft |
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| Very fine to medium grained sands Depth: 4-70ft bgs 66ft thick |
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| Soft, silty limestone Depth: 70-75ft bgs 5ft thick |
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| Limestone interbedded with sand and silt Depth: 75ft bgs |
Pathways and DNAPL Presence
 GroundwaterSedimentsSoilDNAPL Present |
Vapor Intrusion Pathway
Has the potential for vapor intrusion (VI) been evaluated? |
No |
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Has a vapor mitigation system been installed? |
Yes | |
Type of Vapor Mitigation System(s): |
Soil Vapor Extraction |
Remediation Scenario
Cleanup
Goals: |
Groundwater (MCLs): PCE= 3.0 µg /L, TCE= 3.0 µg /L, cis 1,2-DCE= 70 µg/L, trans 1,2-DCE= 100 µg /L, vinyl chloride= 1.0 µg/L Soils (Leachability-Based levels): PCE= 30 µg/kg |
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Remedy Level: |
Full Scale Remedy |
Technologies
In Situ Air Sparging |
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 Soil Vapor Extraction |
Why the technology was selected: Date implemented: Final remediation design: Results to date: Next Steps: Cost to Design and Implement: |
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Ex Situ Soil Removal |
Why the technology was selected: Date implemented: Final remediation design: Results to date: Next Steps: Cost to Design and Implement: |
Costs
Cost
for Assessment: |
$122,000 | |
Cost
for Operation and Maintenance: |
Total for operation of Air Sparge/SVE system: $403,000 Annual groundwater monitoring: $7,000 1 Annual groundwater monitoring: $7,000 | |
Total
Costs for Cleanup: |
Lessons Learned
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1. Treatment system equipment may need to be enclosed in a building to mitigate excessive noise. Design phase activities should include a more extensive review of noise control options. (Complicating factors at this site included the County's refusal to allow the system to be enclosed in a trailer for cosmetic reasons.) 2. Local government agencies might require remedial equipment to be UL certified. |
Contacts
| Aaron Cohen Florida Dept. of Environmental Protection Bureau of Waste Cleanup, MS 4500 2600 Blair Stone Road Tallahassee, Florida 32399 850-245-8974 Aaron.Cohen@dep.state.fl.us Contractor: William Vogelsong, PG Arcadis G&M Inc. 2081 Vista Parkway West Palm Beach, FL 33411 561-697-7000 wvogelsong@arcadis-us.com |
Site Specific References
| 1. E & E Contamination Assessment Report-11/97 2. E & E Remedial Action Plan-5/99 3. O&M Reports 2000-2003. 4. Monitoring reports; 2003 - 2008. |
