State Coalition for Remediation of Drycleaners Site Profiles
Nu-Look One Hour Cleaners , Fort Lauderdale, Florida
Description
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This is an active PCE drycleaning facility that began operations in 1984. The facility is located in a commercial/residential setting.
The contaminant source area is the soil beneath the facility floor slab in the vicinity of the drycleaning machine. Remediation Status: Site closed |
Contaminants
Contaminants present and the highest amount
detected in both soil and groundwater.
Contaminant | Media | Concentration (ppb) | Nondetect |
---|---|---|---|
cis-1,2-Dichloroethene | groundwater | 39.6 ppb | |
cis-1,2-Dichloroethene | soil | 3.81 ppb | |
1,1-Dichloroethene | groundwater | 6.7 ppb | |
Tetrachloroethene (PCE) | groundwater | 46.9 ppb | |
Tetrachloroethene (PCE) | soil | 520 ppb | |
Trichloroethene (TCE) | groundwater | 11.8 ppb | |
Trichloroethene (TCE) | soil | 3.6 ppb | |
trans-1,2-Dichloroethene | groundwater | 2 ppb | |
Vinyl Chloride | groundwater | 38.3 ppb |
Site Hydrology
Deepest Significant Groundwater Contamination: | 35ft bgs | |
Plume Size: | Plume Length: 110ft Plume Width: 35ft Plume Thickness: 31ft |
|
Average Depth to Groundwater: | 4.05ft |
Lithology and Subsurface Geology
fine-grained sand with limestone gravel Depth: 0-9ft bgs 9ft thick Conductivity: 50ft/day Gradient: 0.0009ft/ft |
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weathered sandy limestone Depth: 9-18.5ft bgs 9.5ft thick |
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fine-grained sand Depth: 18.5-22ft bgs 3.5ft thick |
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sandy limestone Depth: 22-64ft bgs 42ft thick |
Pathways and DNAPL Presence
Groundwater Sediments Soil DNAPL Present |
Vapor Intrusion Pathway
Has the potential for vapor intrusion (VI) been evaluated? |
No |
|
Has a vapor mitigation system been installed? |
Yes | |
Type of Vapor Mitigation System(s): |
Soil Vapor Extraction |
Remediation Scenario
Cleanup
Goals: |
Groundwater: PCE = 3 ug/l, TCE = 3 ug/l, Cis 1,2-DCE = 70 ug/l, trans 1,2-DCE, 1,1-DCE = 7 ug/l, vinyl chloride = 1 ug/l Soil: PCE = 30 ug/kg; TCE = 30 ug/kg, cis 1,2-DCE = 400 ug/kg |
Technologies
In Situ Monitored Natural Attenuation |
Why the technology was selected: Next Steps: Cost to Design and Implement: |
|
Ex Situ Carbon Adsorption |
Date implemented: Final remediation design: Results to date: Next Steps: Cost to Design and Implement: |
|
Ex Situ Soil Vapor Extraction |
Why the technology was selected: Date implemented: Final remediation design: Results to date: Next Steps: Cost to Design and Implement: |
Costs
Cost
for Assessment: |
$106,700 | |
Cost
for Operation and Maintenance: |
Operation & Maintenance: $48,400 Monitoring: $15,300 Site Restoration:$5,000 | |
Total
Costs for Cleanup: |
$265,100 |
Lessons Learned
A shallow water table at the site necessitated the use of lateral vapor extraction wells. The two lateral extraction wells were installed just outside the exterior walls of the facility. If it is at all feasible, laterals should be installed as near to the contaminant source area as possible. In this case that would have been beneath the facility floor slab. The building that houses the drycleaning operation is a slab-on-grade building. There is a footer beneath the walls of the building that extends 18 - 24 inches beneath the slab and installation of lateral vapor extraction wells beneath the footer would likely have achieved more efficient recovery of contaminants from beneath the facility. The presence of drycleanign equipment and machinery in an active drycleaning facilty often precludes the installation of piping beneath a facility floor slab. |
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 Mike Lodato, PG, Consultant Geosyntec Consultants 14055 Riveredge Drive, Suite 300 Tampa, Florida 33637 Phone: (813) 558-0990 E-mail: Mlodato@geosyntec.com |
Site Specific References
Site Assessment Report - June 2001 Remedial Action Plan: November 2001 Construction Completion Report - May 2003 Operation & Maintenance Reports Groundwater Monitoring Reports |