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12 <br />13 <br />Identified Contamination Source Evaluation <br />Three listed facilities were identified <br />within one-quarter mile of the Site <br />on Environmental Health <br />Department databases reviewed. <br />(Current off-site) <br />According to the map reviewed, <br />three of four wells tested within one <br />mile of the Site have exhibited <br />levels of nitrate over the MCL of 10 <br />mg/L-N, and one of five wells within <br />one mile has exhibited a DBCP <br />level over the MCL of 0.2 µg/L. <br />(Current off-site) <br />9.0 RECOMMENDATONS <br />Based on the records reviewed, <br />distances from the Site, and <br />reported ground -water flow <br />direction, no evidence was identified <br />of impacts to the subject Site from <br />these facilities. Existing ground- <br />water nitrate levels of 18 to 25 mg/L- <br />N were identified in the vicinity, <br />however. The adjacent California <br />Nuggets facility may also be a <br />source of periodic unpleasant odors. <br />The domestic well on the Site will be <br />tested for nitrate and DBCP as part <br />of the Soil Suitability/Nitrate Loading <br />Study to follow this report. <br />This report should be seen as a screening tool to identify areas where hazardous <br />substances may be present on the Site. As part of the land use application <br />process, the San Joaquin County Environmental Health Department may <br />recommend that certain actions be taken in response to conditions identified. <br />Additionally, any conditions out of compliance with local, State, or Federal <br />regulations should be brought into compliance; it is outside the scope of work of <br />the Surface and Subsurface Contamination Report to identify these conditions. <br />LOGE 2232 15 <br />