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CRAFT • • Levine-Fricke-Recon <br /> continue to be evaluated in light of ongoing remediation activities occurring at the <br /> Exxon service station. In addition, data collected from Chevron and Exxon <br /> monitoring wells may provide additional useful information to support preparation <br /> of the Risk Assessment for the Site. <br /> Based on an evaluation of the reported abandonment procedures documented for <br /> wells LVMD #1, LVMD #2, LVMD #4, and LVMD #6, it appears that these wells <br /> were abandoned using methods appropriate to prevent vertical migration of <br /> groundwater along the former cased and perforated intervals of the wells. <br /> Consequently, these former wells would not likely act as ongoing conduits for <br /> vertical groundwater migration. This conclusion is dependent on final review of <br /> additional data that may be available at SJC DPW <br /> Based on the results and conclusions derived from the public and private well survey, <br /> LFR recommends the following actions: <br /> • Determine the status of domestic wells located downgradient from Lincoln Center <br /> T identified from SJC PHS/EHD and DWR records. This task will include contacting <br /> the owners, if possible. LFR may recommend sampling these wells for VOC <br /> analysis. <br /> • Collect water level data from Chevron and Exxon monitoring wells during a single <br /> contemporaneous event during a period when Exxon monitoring wells are not <br /> being pumped and the soil vapor extraction system is not operating at the Exxon <br /> site. <br /> Collect groundwater samples from municipal supply well COS #11 for VOC <br /> analysis. This recommendation was completed on February 27, 1997. Analytical <br /> results of these samples will be provided under separate cover. <br /> Collect split groundwater samples from selected Chevron and Exxon monitoring <br /> wells for VOC analysis. <br /> • Continue to request clarification from SJC Counsel and SJC DPW regarding the <br /> discrepancies and omissions that were identified during the evaluation of record <br /> drawings documenting the well abandonment procedures for wells LVMD #1, <br /> LVMD #2, LVMD #4, and LVMD #6. <br /> t <br /> 1 <br /> f <br /> 1 <br /> t <br /> i <br /> 4111 WELL.AMJ:AMJ Page 21 <br />