|
The St. Francis Autowreckers Site is an active auto salvage yard located in a populated, mixed residential and commercial area within the city of St. Francis, Wisconsin. The Site is located at 4043 South Pennsylvania Avenue and covers approximately 115,000 square feet. A trench/drainage area runs east to west directly north of the St. Francis Auto Wrecker’s office.
Auto salvage and recycling operations were conducted at the site for the past 40 years. The operations were primarily confined to the southern half of the site area. Previous records and inspections indicate that the northern portion of the site was once a portion of a landfill for the Town of Lake, Wisconsin, and was purchased by the site owner to expand his business. The area of concern is approximately 230 feet by 200 feet on the northern portion of the property.
Based on previous sampling by the Wisconsin Department of Natural Resources (WDNR) and the Wisconsin Department of Transportation (WDOT), elevated levels of PCBs, volatile organic compounds and evidence of buried drums were detected. In October 2007, at the request of the WDNR, U.S. EPA performed a site assessment.
Sampling activities were conducted in the previous WDNR test pit areas consisting of two samples, SS-1 and SS-2. A third sample, SS-3 was collected from the drainage/trench area that runs in an east to west direction, north of the St. Francis Auto Wreckers main building.
Sample results showed lead, chromium and PCB contamination above RCRA limits in SS-1 (refer to Site Assessment Report prepared by STN Environmental, dated June 5, 2008). Trace levels of PCB’s (>1 mg/kg) were found in SS-2 and SS-3. Historical WDNR and WDOT sample results show the presence of TCE above RCRA limits within the areas of the test pits, along with TCLP VOC flashpoint results of <140º, showing that some soil may be considered ignitable. Based on these a results, an action memo to conduct a time-critical removal action was approved.
|