Drycleaner Site Profiles

Same Day Cleaners, Winter Haven, Florida

Description
Historical activity that resulted in contamination.

Same Day Cleaners is an acitve PCE drycleaning facility that has been in operation since 1994. It is located in a shopping center in a mixed retail/commercial setting. The identified contaminant source area is the soil beneath the facility floor slab in the vicinity of the drycleaning machine.

Remediation Status: In groundwater monitoring


Contaminants
Contaminants present and the highest amount detected in both soil and groundwater.


Contaminant Media Concentration (ppb) Nondetect
Tetrachloroethene (PCE) groundwater
Tetrachloroethene (PCE) soil

Site Hydrology

Deepest Significant Groundwater Contamination:   50ft bgs
Plume Size:   Plume Length: 160ft
Plume Width: 60ft
Plume Thickness: 20ft
Average Depth to Groundwater:   32.08ft

Lithology and Subsurface Geology

 
  fine-grained sand
Depth: 0-15ft bgs
15ft thick
Conductivity: 0.169ft/day
Gradient: 0.0035ft/ft
 
  hard, stiff clay
Depth: 15-35ft bgs
20ft thick
 
  clay and clayey, very fine-grained sand
Depth: 35-50ft bgs
15ft thick

Pathways and DNAPL Presence

checkGroundwater
Sediments
checkSoil
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:
  Soil: PCE = 30 ug/kg

Groundwater: PCE = 3 ug/l, TCE = 3 ug/l
Remedy Level:
  Full Scale Remedy

Technologies

In Situ Monitored Natural Attenuation
 

Why the technology was selected:
Monitored natural attenuation was selected because of the low contaminant concentrations in groundwater and the Florida Drycleaning Solvent Cleanup Program's experience with using SVE only to remediate sites with soil contamination and low level groundwater contamination.

Results to date:
SVE system was shut down on July 31, 2008. The site then went into post-active remedial monitoring. On June 22, 2011, a fourth consecutive groundwater monitoring event detected no contaminants in groundwater in concentrations exceeding any cleanup target levels.

Next Steps:
A Site Rehabilitation Completion Order was issued for the site on November 23, 2011.

Cost to Design and Implement:
All technologies: Design: $17,100 Implementation: $52,800

In Situ Soil Vapor Extraction
 

Why the technology was selected:
Soil vapor extraction was selected because it is an effective remedial technology for recovering VOCs from permeable, unsaturated sediments.

Date implemented:
SVE startup: April 5, 2007

Final remediation design:
The SVE system consists of nine (9) vapor extraction wells. Six of these wells are screened 2-10 ft BLS and three of the wells are screened 16-26 ft BLS. The system is powered by a 15 HP blower. Off gas is treated via a 140-lb. G.A.C. vessel. Design flow rate for the shallow vapor extraction wells is 75 scfm and the desing flow rate for the three deep vapor extraction wells is 22 scfm.

Results to date:
SVE system was shut down on July 31, 2008. The site then went into post-active remedial monitoring. On June 22, 2011, a fourth consecutive groundwater monitoring event detected no contaminants in groundwater in concentrations exceeding any cleanup target levels.

Next Steps:
A Site Rehabilitation Completion Order was issued for the site on November 23, 2011.

Cost to Design and Implement:
All technologies: Design: $17,100 Implementation: $52,800

Ex Situ Carbon Adsorption
 

Date implemented:
SVE startup: April 5, 2007

Final remediation design:
The SVE system consists of nine (9) vapor extraction wells. Six of these wells are screened 2-10 ft BLS and three of the wells are screened 16-26 ft BLS. The system is powered by a 15 HP blower. Off gas is treated via a 140-lb. G.A.C. vessel. Design flow rate for the shallow vapor extraction wells is 75 scfm and the desing flow rate for the three deep vapor extraction wells is 22 scfm.

Results to date:
SVE system was shut down on July 31, 2008. The site then went into post-active remedial monitoring. On June 22, 2011, a fourth consecutive groundwater monitoring event detected no contaminants in groundwater in concentrations exceeding any cleanup target levels.

Next Steps:
A Site Rehabilitation Completion Order was issued for the site on November 23, 2011.

Cost to Design and Implement:
All technologies: Design: $17,100 Implementation: $52,800

Costs

Cost for Assessment:
  $58,100
Cost for Operation and Maintenance:
  $74,900
Total Costs for Cleanup:
  $208,000

Lessons Learned

Conventional soil sampling found only low concentrations of contaminants at the site. However, modified active soil gas sampling conducted during the assessment recovered soil gas samples with PCE concentrations as high as 9.2 milligrams/cubic meter.

Contacts

Stacie Davis, Project Manager
Bureau of Waste Cleanup
Florida Department of Environmental Protection (MS4520)
Tallahassee, Florida 32399-2400
Phone: (850) 245-8967
E-Mail: Stace.A.Davis

Brian Moore, P.E.
H.S.A. Environmental
4019 East Fowler Avenue
Tampa, Florida
Phone: (813) 971-3882
E-Mail: BMoore@HSA-env.com

Site Specific References

Site Assessment Report: 2005
Remedial Action Plan: 2006
Construction Completion Report: 2007
Operation & Maintenance Reports: 2007 -2008
Groundwater Monitoring Reports 2008 - 2011