Jim Morgan's Fine Dry Cleaners, Wichita, Kansas

State Coalition for Remediation of Drycleaners Site Profiles

Description
Historical activity that resulted in contamination.

Significant amounts of tetrachloroethylene (PCE) were detected in monitoring well samples associated with a Petroleum Storage Tank Release Trust Fund site. Investigations in 2004 determined the source to be the Jim Morgan's Fine Dry Cleaners site. The site has been operated as a dry cleaner since 1958 and is still in operation. Primary solvent use is tetrachloroethylene (PCE). According to the owner, PCE solvent was stored in an above ground storage tank which rusted out and spilled roughly 100 gallons of PCE on the ground. Separator water and PCE were also disposed of in an onsite floor drain and used filters were deposited in onsite dumpsters. Five domestic wells were located downgradient. The wells were converted to lawn & garden wells and the associated residences were hooked-up to the City of Wichita public water supply.

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
cis-1,2-Dichloroethene	soil
Tetrachloroethene (PCE)	groundwater
Tetrachloroethene (PCE)	soil
Trichloroethene (TCE)	groundwater
Trichloroethene (TCE)	soil

Site Hydrology

Deepest Significant Groundwater Contamination:		22ft bgs
Plume Size:		Plume Length: 3,600ft Plume Width: 450ft Plume Thickness: 5ft
Average Depth to Groundwater:		18ft

Lithology and Subsurface Geology

		Sandy silty loam Depth: 0-4ft bgs 4ft thick Gradient: 0.001ft/ft
		silty clay Depth: 4-8ft bgs 4ft thick
		brown clay with fine sand Depth: 8-12ft bgs 4ft thick
		fine to medium sand Depth: 12-45ft bgs 33ft thick
		bedrock Depth: 45ft bgs

Pathways and DNAPL Presence

Groundwater

Sediments

Soil

DNAPL Present

Vapor Intrusion Pathway

Has the potential for vapor intrusion (VI) been evaluated?		No
Has a vapor mitigation system been installed?		No

Remediation Scenario

Cleanup Goals:		Reduce all contaminants to below the EPA maximum contaminant levels for groundwater and KDHE RSK values for soil.
Remedy Level:		Full Scale Remedy

Technologies

In Situ Soil Vapor Extraction

Why the technology was selected:
SVE was selected based on known efficiency in the site geology and cost.

Date implemented:
SVE wells installed in March of 2008. System start-up May, 2008.

Final remediation design:
Four vertical SVE wells to 15 ft bgs with 10 ft of screen. An existing remdiation shed was brought to the site from another site in Wichita. Radius of influence was determined to be 30 ft.

Results to date:
The system continues to work effectively and has removed over 1,700 pounds of VOC's from the soil.

Next Steps:
Continue site remediation and monitoring until clean-up goals have been reached.

Cost to Design and Implement:
$21,099.50 (Hook-up residences to city water). $73,720.60 (Remediation system design, installation and start-up).

Costs

Cost for Assessment:		$32,589.10
Cost for Operation and Maintenance:		Roughly $10,000 per year.
Total Costs for Cleanup:

Lessons Learned

During installation of remediation system, contractor hit the potable water supply line to the strip mall facility. Property owner's recollection of the water line was incorrect. Demonstrated the need for a private utility locate prior to commencement of remediation system installation. Also, during trenching activities, the old, brittle, vitrified clay sewer tiles would collapse due to additional shear stress from the excavation equipment. Contractors need to be prepared to address the issue for older facilities.

Remediation system was scavenged from another trust fund site for reuse at the Jim Morgan's site. Due to the age of the equipment, it was necessary to invest additional money into repairs to the enclosure, replacement of the SVE blower and rebuild the manifold system in order to replace failing flow meters.