Soil Vapor Extraction (SVE) at Seven Drycleaner Sites, Various Locations

Site Name:

Multiple (7) Dry Cleaner Sites

Location:

- Abe's Main Street Cleaners, Portland, OR
- Donaldson's Drycleaners, WI
- Dry Clean USA, Orlando, FL
- One Price Drycleaners, Sunrise, FL
- Sir Galloway Dry Cleaners, Miami, FL
- Stuart Cleaners & Tailors, Stuart, FL
- The Dry Cleaner, Alamonte Springs, FL

Period of
Operation:

- Abe's Main Street Cleaners - 1998 (dates not specified)
- Donaldson's Drycleaners - Not specified
- Dry Clean USA - April, 1999 to December, 2000
- One Price Drycleaners - February, 2000 to August, 2000
- Sir Galloway Dry Cleaners - January, 2000 to July, 2000
- Stuart Cleaners & Tailors - January, 2000 to July, 2000
- The Dry Cleaner - March, 1999 to September, 1999

Cleanup
Type:

Full scale

Technology:
SVE
- SVE systems consisted of from 1 to 14 vapor extraction wells applying a vacuum of 19 to 70 inches of water and drawing 80 to 290 scfm of soil vapor at depths from 0.5 to 40 feet bgs.. Two system also had air injection wells.
- At three sites pump and treat of contaminated groundwater was also conducted. The groundwater pump and treat continued operation for an unspecified period of time after the SVE system was shut down.
- At two sites, prior to SVE, excavation of hot spots was performed. At one of those sites the excavation was followed by backfilling and capping with asphalt to minimize infiltration of surface water into the contaminated areas.

Cleanup Authority:
State

Contacts:
Varied by site

Contaminants:
Chlorinated Solvents
- Concentrations of PCE in soil varied among the sites and ranged from 1 to 1,000 mg/kg. Some sites reported other chlorinated organics in the soil such as TCE, cis-1,2-DCE and VC
- Concentrations of PCE on groundwater varied among the sites and ranged from 0.003 to 55 mg/L. Some sites reported other chlorinated organics in the soil such as TCE, cis-1,2-DCE and VC. Two site reported that DNAPLs were present or likely to be present.

Waste Source:
Waste and wastewater from drycleaning operations

Type/Quantity of Media Treated:
Soil

Purpose/Significance of Application:
Use of soil vapor extraction to remediate soil contaminated with chlorinated solvents at drycleaning sites

Regulatory Requirements/Cleanup Goals:
- Soil cleanup goals were based on state regulatory goals
- Five sites had a soil cleanup goal of 30 mg/kg leachable PCE; one site had a soil cleanup goal 0.3 mg/kg for PCE.

Results:
- All of the sites reported that SVE effectively removed PCE from soils
- The amounts of VOCs removed by the SVE systems ranged from 2 to7 pounds

Cost Factors:
Design and implementation costs for SVE systems ranged from $30,000 to $160,000; annual O&M costs for SVE systems ranged from $26,000 to $67,000

Description:
SVE was conducted at six drycleaner sites contaminated with chlorinated organic compounds from drycleaning operations. All of the sites reported that SVE effectively removed PCE from soils, with the amount of VOCs removed ranging from 2 to 7 pounds. Reported design and implementation costs for the SVE systems ranged from $30,000 to $160,000 and reported annual O&M costs ranged from $26,000 to $67,000.