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ref, ; ,t-•_ ..,,,�,_ <br /> S5. OCT 11 t <br /> 20 <br /> C EPA October 16, 1996 / <br /> Pete Wilson <br /> Department ofGovernor <br /> Toxic Substances :s <br /> Control ",�' . u James M. Struck <br /> v„ �.'j,.q• t Secretary for <br /> 400 P Street, ;�1 l.L �, Environmental <br /> L <br /> 4th Floor i) Protection <br /> P.o. Box 806 Mr. Harry Weber)V <br /> Sacramento, CA Cain Electrical Company <br /> 95812-0806 230 North Church Street <br /> Lodi, California 95240 (� <br /> RE: SOIL GAS SAMPLING WORKPLAN <br /> Dear Mr. Weber. <br /> This letter is in response to your August 27, 1996 letter regarding the <br /> property located at 230 N. Church Street, Lodi (Site). You stated in the letter that you <br /> intend to conduct a soil gas investigation and initiate cleanup activities for the <br /> contamination found at the Site. However, due to the proposed scope of work, you <br /> requested that the submittal date for the workplan be extended to February 1, 1997. It <br /> appears that you want to submit a workplan that includes both soil gas sampling and <br /> soil gas cleanup activities. <br /> The proposed date of February 1, 1997 to submit the soil gas cleanup workplan <br /> may be acceptable; however, it is not acceptable for the soil gas sampling workplan. <br /> Soil gas sampling is used to generate site-specific soil gas data to (a) determine if any <br /> soil remediation is necessary, and to (b) design a soil vapor extraction system for the <br /> Site. Without the soil gas data, the Department of Toxic Substances Control (DISC) <br /> questions the adequacy of any cleanup activities to be addressed in the February 1997 <br /> workplan. You should be aware that the levels of PCE found in the PETREEX tubes <br /> on and off the Site are extremely high, and the City of LodVs drinking water well <br /> number 2 is located within 50 feet downgradient from the Site. Given the magnitude <br /> of PCE detected and the close proximity of the Site to the City's well, soil gas <br /> sampling to delineate the horizontal and vertical extent of the contamination must be <br /> conducted as early as possible so that early cleanup efforts can be initiated. <br /> DTSC appreciates your commitment to conduct future cleanup activities for the <br /> Site; however, the soil gas sampling should not be delayed. Please submit the soil gas <br /> sampling workplan within twenty-one (21) days from the date of this letter. <br /> n <br /> a � <br />