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hq KLEINFELDER <br /> 5. Methylene chloride was detected in the soil samples obtained from B6/HP-6 at depths of 5 <br /> and 10 feet and B7 at 15 feet. However, the methylene chloride is used extensively in a <br /> analytical laboratory. Therefore, the methylene chloride detected, may have been a result of <br /> laboratory contamination. <br /> 6. The equipment decontamination rinseate and drilling returns (soil) should be properly <br /> disposed of by the Client. Kleinfelder can assist the Client in that disposal at an additional <br /> charge if requested by the client. <br /> 7. If discolored soil, odors, or other evidence of contamination are encountered during any <br /> future site grading, development, etc....., our office should be notified immediately. <br /> 8. A copy of this report should be submitted by either the San Joaquin Regional Rail <br /> Commission or the property owner to the San Joaquin County Public Health Services <br /> Department Environmental Health Division and the State of California Regional Water <br /> Quality Control Board. <br /> 1 <br /> This report is subject to the limitations found in Chapter 7 of this report. <br /> ' 20-4054-0 LEO 1/2018R299 Page 3 of 15 <br /> © 1998,Kleinfelder,Inc. May 8, 1998 <br />