State Coalition for Remediation of Drycleaners Site Profiles
Star Brite Cleaners, Winter Springs , Florida
Description
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| This is an active drycleaning facility that used petroleum solvent from 1981 to 1990 and has used PCE since 1990. Several solvent spills have been reported at the facility including a petroleum solvent spill inside the facility and leaks associated with an AST located outside the facility where petroleum solvent was stored. Two discharges of PCE from a distillation unit were also reported. The business is located in a residential/retail commercial setting. The facility is served by a septic tank/drainfield and an onsite water well is used to serve laundry operations. Identified contaminant source areas are the septic tank/drainfield, soils beneath the facility floor slab, and soils in the former AST location. |
Contaminants
Contaminants present and the highest amount
detected in both soil and groundwater.
| Contaminant | Media | Concentration (ppb) | Nondetect |
|---|---|---|---|
| Tetrachloroethene (PCE) | groundwater | 88 ppb | |
| Tetrachloroethene (PCE) | soil | 270 ppb | |
| Trichloroethene (TCE) | groundwater | 12 ppb |
Site Hydrology
| Deepest Significant Groundwater Contamination: | 30ft bgs | |
| Plume Size: | Plume Length: 120ft Plume Width: 60ft |
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| Average Depth to Groundwater: | 14ft |
Lithology and Subsurface Geology
| fine-grained sand Depth: 0-6ft bgs 6ft thick Conductivity: 2ft/day Gradient: 0.007ft/ft |
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| clayey, fine-grained sand Depth: 6-12ft bgs 6ft thick |
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| silty, fine-grained sand Depth: 12-32ft bgs 20ft thick |
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| fine-grained sand Depth: 32-52ft bgs 20ft thick |
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| sandy clay Depth: 52-58ft bgs 6ft thick |
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| sandy clay with shells Depth: 58-69ft bgs 11ft thick |
Pathways and DNAPL Presence
 Groundwater SedimentsSoilDNAPL Present |
Remediation Scenario
Cleanup
Goals: |
Groundwater: PCE= 3.0 µg/l, TCE= 3 µg/l Soil: PCE = 30 µg/kg, TPH = 340 mg/kg |
Technologies
In Situ Monitored Natural Attenuation |
Why the technology was selected: Date implemented: 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: Results to date: Next Steps: Cost to Design and Implement: |
Costs
Cost
for Assessment: |
$81,800 | |
Cost
for Operation and Maintenance: |
Groundwater Monitoring: $21,900 Site Restoration: $3,700 | |
Total
Costs for Cleanup: |
$136,500 |
Lessons Learned
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1. To date all septic tanks identified and sampled in the Florida Drycleaning Solvent Program have been contaminated with drycleaning solvents. 2. Petroleum solvent releases at the site did not contaminate groundwater at the site. The petroleum contaminants sorbed to the soils and are biodegrading. 3. Removal of contaminated septage from the septic tank resulted in reduction of contaminants in groundwater. |
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 Blanche Wallace, consultant Earth Tech Consulting, Inc. 30 South Keller Road, Suite 500 Orlando, Florida 32810-6101 (407) 331-5967 blanche_wallace@earthtech.com |
Site Specific References
| Contamination Assessment Report - 1997 Remedial Action Report - 1999 Groundwater Monitoring Reports: 1999-2002 |
