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Cal/EPA ' <br /> December` 27, 1996 <br /> Department of Mr. Stanley Herzstein, Sr. Pete Wilson <br /> Toxic Substances 1170 Sacramento Street, Penthouse B Governor <br /> Control San Francisco, California 94108 <br /> James M. Strock <br /> 400 P Street, SOIL VAPOR EXTRACTION IS NOT REQUIRED FOR THE PROPERTY Secretary for <br /> 4th Floor Environmental <br /> P.O. Box 806 LOCATED AT 104 E. TURNER ROAD, LODI, CALIFORNIA Protection <br /> Sacramento, CA <br /> 95812-0806 Dear Mr. Herzstein: <br /> The Department of Toxic Substances Control (DTSC) <br /> has determined that soil remediation using the vapor <br /> extraction system is not required for the property <br /> located at 104 E. Turner Road, Lodi, California (Site) . <br /> Based on the December 5 , 1996 report on "Soil Gas <br /> Survey" submitted by PES Environmental Inc . , rationales <br /> for DTSC' s determination are discussed as follows : <br /> 1 . The chemical compound trichloroethene (TCE) was <br /> detected in the soil gas samples collected during <br /> the November 12 , 1996 soil gas sampling at the <br /> Site . The levels of TCE detected ranged from 1 . 6 <br /> to 13 . 8 microgram per liter (ug/1) in soils at a <br /> depth of 10 feet . One sample was collected from <br /> the 20 foot depth which contained a TCE value of <br /> 1 . 7 ug/l . Tetrachloroethene (PCE) was not <br /> detected. The results indicate that the Site may <br /> not be a source for the PCE and/or TCE found in <br /> soil and groundwater in the City of Lodi . <br /> Elevated levels of PCE and TCE were detected in <br /> the properties located upgradient of the Site, <br /> which may have contributed to the TCE detected in <br /> soil beneath the Site; <br /> 2 . The levels of TCE detected at the Site are below <br /> the preliminary soil gas cleanup levels (15 ug/1) <br /> established for shallow soils in Lodi . Therefore, <br /> soil remediation is not necessary at the Site . <br /> If you have any questions, please contact me at <br /> (916) 323-3372 or Mr. Jerry Marcotte at (916) 322-9224 . <br /> Sincerely, <br /> e5-414i <br /> 7--- <br /> Jean Young <br /> Hazardous Substances Engineer <br /> Site Mitigation Program <br /> Pr,nrod on R-IKW P^— <br />