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The groundwater-grab sample and each of the selected soil samples will be analyzed for TPH-as- <br /> gasoline, BTEX, MTBE, DIPE, ETBE, TAME and TBA by EPA Method 8260 The soil samples will <br /> also be analyzed for total lead by EPA Method 6010 Laboratory analyses will be performed on a <br /> 1 standard turnaround <br /> 23 Water Well Sampling and Analysis <br /> To confirm that the on-site water supply well has not been impacted by gasoline hydrocarbons, <br /> groundwater from the well will be re-sampled for laboratory analysis The groundwater sample will <br /> be collected from the wellhead and contained in laboratory-supplied containers The containers will <br /> be labeled and transported in an iced cooler under chain-of-custody documentation to a state of <br /> California certified hazardous waste testing laboratory The groundwater sample will be analyzed <br /> for TPH-as-gasoline, BTEX, MTBE, DIPE, ETBE, TAME and TBA by EPA Method 8260 <br /> 24 Site Investigation Report <br /> The methods and findings associated with the proposed scope of work will be reported in a Site <br /> Investigation Report The report will be prepared by a California Registered Geologist and <br /> submitted to PHS/EHD, USTCF and the Central Valley Regional Water Quality Control Board <br /> (RWQCB) The report will be prepared according to the Th-Regional Board Staff <br /> Recommendations for Preliminary Investigation and Evaluation of Underground Tank Sites, <br /> Appendix A—Reports <br /> 1 <br /> 9 <br />