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• 8.0 IDENTIFIED CONTAMINATION SOURCES <br /> The following sources of past, current, on-site, and off-site contamination have <br /> been identified as a result of this investigation: <br /> Identified Contamination Source Evaluation <br /> 1. The Site has been used for As with any agricultural property, <br /> agriculture since 1937 or earlier. agricultural chemical residues may <br /> Agricultural chemicals continue to be present in Site soils. The San <br /> be applied to the Site, as indicated Joaquin County Agricultural <br /> in Appendix 5. Chemicals are Commissioner's office regulates <br /> stored on-Site in closed structures chemical application. <br /> with cement floors, according to Mr. <br /> Roget. (Current and past on-site) <br /> 2. According to Mr. Roget, the barn For any structure or former structure <br /> and garage on the Site are over dating from the 1980s or earlier, the <br /> 100 years old. An additional house assumption is made that lead- <br /> was originally present, near the containing materials and/or <br /> current location of the camper. The pesticide residues may be present <br /> existing house was placed on the in and around the structure. These <br /> Site in 1989. (Current and past on- materials should be addressed in <br /> • site) accordance with all applicable <br /> regulations. <br /> 3. A domestic well, septic system, and It appears that the two wells and <br /> an irrigation well, are located on the septic system are currently in use. <br /> Site. The former house on the Site No records exist for the septic <br /> would also have had a septic system at the former house. The <br /> system. (Current and past on-site) San Joaquin County Environmental <br /> Health Department provides <br /> regulatory oversight for wells and <br /> septic systems. <br /> 4. A 500-gallon above-ground fuel The San Joaquin County <br /> tank was once located on the Site, Environmental Health Department <br /> according to Mr. Roget. He provides regulatory oversight for fuel <br /> indicated that he never used it. tanks. <br /> (Past on-site) <br /> 5. Four vehicles are parked on the Mr. Roget indicated that he plans to <br /> Site. (Current on-site) repair or sell all four vehicles. <br /> • <br /> LOGE 1720 9 <br />