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Geosyntec'% <br /> consultants <br /> Description of Surrounding Property/Population: <br /> North: School East: Commercial <br /> South: Commercial/Residential West: Residential <br /> Summary of Previous Site Investigations (if available/applicable): <br /> Tetrachloroethene(PCE)was released to the soil and groundwater through breaks in the sanitary <br /> sewer lines that serviced 3 historical dry cleaning businesses in the Lincoln Village Shopping <br /> Center. The primary constituents historically reported in the groundwater, soil and soil vapor at <br /> the site include PCE and the PCE degradation product trichloroethene (TCE). Other PCE <br /> degradation products have been detected at low levels in groundwater, including 1,2- <br /> dichloroethene(cis-1,2-DCE and trans-1,2-DCE)and vinyl chloride. <br /> PCE. The highest reported concentrations are 85 milligrams per liter (mg/1) in groundwater <br /> (May 1997); 63 milligrams per kilogram (mg/kg) in soils beneath the former Norge Cleaners <br /> (October 1987); and 160 mg/I in a sewage sample collected from manhole D(March 1985). <br /> TCE. The highest reported concentration is 0.91 mg/l in groundwater(November 1997); TCE <br /> has been detected in soil samples collected from Lincoln Center at low concentrations <br /> maximum of 0.004 mg/kg). <br /> SAC I 1 I I HASP—Revision—October 2020 7 10/22/20 <br />