State Coalition for Remediation of Drycleaners Site Profiles
Foxy Cleaners & Tailoring, Aurora, Illinois
Description
|
Foxy Cleaners & Tailoring has been an active dry-cleaning facility since 1988. The facility is located in a commercial strip mall in Aurora, Illinois. Tetrachloroethylene (PCE) is the only dry-cleaning solvent to have been used at the facility. From 1999 to 2004, site investigation activities were performed at the site. The area most significantly impacted at the site was the hazardous waste storage area. PCE levels in soil beneath the hazardous waste storage area measured as high as 2700 mg/kg. There have been no known releases from the site. Therefore, it was concluded that the storage of spent filters and still wastes, without any secondary containment, led to leakage over time. The PCE waste leakage penetrated the concrete floor inside the facility and contaminated the soils in the subsurface. There are no nearby receptors which could be impacted by the release; however, the city of Aurora does not have a groundwater ordinance restricting use of groundwater as a potable water source. Therefore, remediation of the site was required to obtain site closure under the Illinois EPA Voluntary Site Remediation Program. Prior to conducting the site investigation, a Phase I Environmental Site Assessment was also performed. The Phase I ESA did not identify any nearby environmental problems such as USTs or contaminated properties adjacent to the site. Prior to April 2007, no remediation had been performed to address the release at the site. Remediation Status: In active remediation |
Contaminants
Contaminants present and the highest amount
detected in both soil and groundwater.
Contaminant | Media | Concentration (ppb) | Nondetect |
---|---|---|---|
cis-1,2-Dichloroethene | groundwater | 210 ppb | |
cis-1,2-Dichloroethene | soil | 460 ppb | |
Tetrachloroethene (PCE) | groundwater | 420 ppb | |
Tetrachloroethene (PCE) | soil | 2,700,000 ppb | |
Trichloroethene (TCE) | groundwater | 140 ppb | |
Trichloroethene (TCE) | soil | 2,400 ppb | |
Vinyl Chloride | groundwater | 12 ppb | |
Vinyl Chloride | soil | 23 ppb |
Site Hydrology
Deepest Significant Groundwater Contamination: | 10ft bgs | |
Plume Size: | Plume Length: 180ft Plume Width: 120ft Plume Thickness: 10ft |
|
Average Depth to Groundwater: | 6ft |
Lithology and Subsurface Geology
Silty Clay with Cobbles Depth: 1-8ft bgs 7ft thick Conductivity: 3.09ft/day Gradient: 0.0081ft/ft |
||
Sand Depth: 8-16ft bgs 8ft thick |
||
Silty Clay Depth: 16ft bgs |
Pathways and DNAPL Presence
Groundwater Sediments Soil DNAPL Present |
Remediation Scenario
Cleanup
Goals: |
Soil Risk Based Corrective Action (RBCA) equations were used to develop site specific soil remediation objectives which would limit impacted soil from potentially leaching into the groundwater above regulatory standards within the property boundaries. A soil remediation objective of 45 mg/kg was developed for PCE. TCE, DCE and Vinyl Chloride, although present, were at low levels and do not present a concern in soil at the site. Groundwater - All contaminants present in groundwater are excluded as potential risks with an on-site deed restriction. |
Technologies
In Situ Chemical Oxidation |
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: Date implemented: Final remediation design: Results to date: Next Steps: Cost to Design and Implement: |
Costs
Cost
for Assessment: |
$47,396.10 | |
Cost
for Operation and Maintenance: |
$0 | |
Total
Costs for Cleanup: |
Lessons Learned
Combining remediation technologies, such as soil removal and in-situ chemical oxidation, can enhance the effectiveness of a site remediation. If we had a similar site we would definitely consider using the same technologies and approach. In retrospect, there is little that we would have done differently or could improve upon. Considering the effect that sodium permanganate had on contaminants at the site, perhaps less soil could have been excavated and alternatively treated in-situ with chemical oxidation. Excavating less soil would have provided some cost savings. Nonetheless, the remediation design and implementation was very effective, efficient and most importantly, we stayed under budget. |
Contacts
Superior Environmental Corp Chris Lee 951 South 7th Street Rochelle, IL 61068 815-562-5541 c.lee@superiorenvironmental.com |