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i <br /> /►/A <br /> Workrng to Restore Nature <br /> Chain of Custody Records in the field that accompanied the samples to a laboratory <br /> certified by the State of California for the analyses requested Samples were transported <br /> to the laboratory promptly Samples in our custody were properly disposed of after their <br /> ' useful life had expired <br /> ' Reiporting Results of Analyses <br /> Hydrocarbon constituents in groundwater samples are reported by the laboratory in units <br /> of parts per billion (ppb) The maximum contaminant levels listed in Title 22 of the <br /> ' California Code of Regulations for benzene, ethylbenzene, and total xylene isomers in <br /> drinking water are 10, 680, and 1,750 ppb, respectively The action level established by the <br /> ' California Department of Health Services for toluene is 100 ppb To conform with the <br /> laboratory reports, we report groundwater chemical data in units of ppb <br /> 1 <br /> r <br /> 06211goi/123020-i <br />