State Coalition for Remediation of Drycleaners Site Profiles
Wright's Dry Cleaners, Winter Haven, Florida
Description
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| This is an active drycleaning facility that has been operating since 1975. The facility uses both PCE and petroleum drycleaning solvents. A UST where No. 2 fuel oil was formerly stored has been abandoned. The facility is served by a septic tank/drainfield. The facility is located approximately 450 feet upgradient of a small sinkhole lake. Contaminant sources at the site include soils beneath the biulding floor slab near the drycleaning machine and the septic tank/drainfield. |
Contaminants
Contaminants present and the highest amount
detected in both soil and groundwater.
| Contaminant | Media | Concentration (ppb) | Nondetect |
|---|---|---|---|
| cis-1,2-Dichloroethene | groundwater | 12 ppb | |
| Tetrachloroethene (PCE) | groundwater | 54 ppb | |
| Tetrachloroethene (PCE) | soil | 493 ppb | |
| 1,2,4-trimethylbenzene | soil | 225 ppb | |
| 1,3,5-trimethylbenzene | soil | 115 ppb | |
| naphthalene | soil | 233 ppb | |
| Trichloroethene (TCE) | groundwater | 3 ppb |
Site Hydrology
| Deepest Significant Groundwater Contamination: | 12ft bgs | |
| Plume Size: | Plume Length: 60ft Plume Width: 140ft Plume Thickness: 12ft |
|
| Average Depth to Groundwater: | 6ft |
Lithology and Subsurface Geology
| Very fine to fine-grained sand with silty fine-grained sand interbed Depth: 0-49ft bgs 49ft thick Conductivity: 20ft/day Gradient: 0.04ft/ft |
Pathways and DNAPL Presence
 Groundwater SedimentsSoilDNAPL 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 - MCLs: PCE=3.0 ug/l; TCE=3.0 ug/l; cis 1,2-DCE=70 ug/l Soils - Leachability Cleanup Target Level: PCE=30.0 ug/kg |
Technologies
In Situ Monitored Natural Attenuation |
Why the technology was selected: Next Steps: Cost to Design and Implement: |
|
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: |
|
Ex Situ Soil Removal |
Why the technology was selected: Next Steps: Cost to Design and Implement: |
Costs
Cost
for Assessment: |
$86,560.08 |
|
Cost
for Operation and Maintenance: |
$57,449.03 (O&M, Confirm Sampling) $31,435.73 (GW Monitoring) $6,480.06 (SVE & MW decomission) | |
Total
Costs for Cleanup: |
$238,640.86 |
Lessons Learned
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Introduction of air into air inlet wells installed in dead spaces will increase the pressure gradient between SVE wells and and air inlet wells, enhancing air movement towards SVE wells. The presence of fine silt interbed in the unsaturated zone acted to retain contaminants and resulted in a rebound in contaminant influent concentrations after two system shutdown periods. |
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 Brian Moore, Contractor HAS Environmental Engineers & Scientists 4019 East Fowler Avenue Tampa, Florida 33167 (850) 971-3882 bmoore@hsa-env.com |
Site Specific References
| Contamination Assessment Report May 1998 Remedial Action Plan 02/1999 Remediation Performance Reports 10/99-11/00 Groundwater Monitoring Reports 09/99-08/03 |
