The NuWay Dry Cleaner site is located in the City of Victorville, CA. The site is located in a mixed residential and commercial area. The site was occupied by a 5,600 square foot building used as a laundry and dry cleaning operation. The site operated from the 1950's to 2001. The former dry cleaner building was demolished in 2008. Currently, there are no structures on the site. The majority of the site is covered by a concrete slab foundation. Previous Environmental Site Assessment by the EPA TBA Program conducted in 2009 revealed high concentrations of PCE in soil gas samples at depths ranging from 5 to 20 feet bgs both on and off-site. PCE concentrations in soil gas ranged from 66,000 ug/m3 to 9.7 x 106 ug/m3. All soil gas concentrations exceeded the California Human Health Screening Level for PCE in soil vapor of 180 ug/m3. This release presented a significant threat of exposure to residents via vapor intrusion. In November 2009, the site was referred to the ERS. On January 25-29, the ERS conducted a removal site assessment to evaluate the concentrations of PCE in soils throughout the site and to accurately delineate the horizontal and vertical extent of contamination in the areas where PCE and its related degradation products exceeded the EPA RSLs. The assessment revealed high PCE concentrations in soils (hotspots) on-site at several locations in shallow soils to a depth of 5 feet bgs. PCE contamination was also detected on and off-site in the deeper strata from 5-20 feet bgs. The contamination was considered the source of soil gas migration and a potential threat of vapor intrusion into residential homes. On May 3-4 and August 12-13, EPA and START conducted vapor intrusion indoor air sampling at several residential and commercial buildings.
