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VWtgr Sample Labeling and Handling <br /> Water samples were preserved in laboratory-cleaned, 40-milliliter glass vials that contained <br /> concentrated hydrochloric acid as a preservative The water samples were sealed with <br /> Teflon-lined lids to eliminate air bubbles. The sample containers were labeled in the field with <br /> the site identification, monitoring well number and depth, and date, and promptly placed in <br /> iced storage for transport to the laboratory. The technician or geologist initiated Chain of <br /> Custody Records in the field that accompanied the samples to a laboratory certified by the <br /> State of California for the analyses requested. Samples were transported to the laboratory <br /> promptly. Samples in our custody were properly disposed of after their useful life had <br /> expired <br /> Reporting Results of Analyses <br /> Hydrocarbon constituents in groundwater samples are reported by the laboratory in units of <br /> parts per billion (ppb). The maximum contaminant levels listed in Title 22 of the California <br /> Code of Regulations for benzene, ethylbenzene, and total xylene isomers in drinking water are <br /> 10, 680, and 1,750 ppb, respectively The action level established by the California <br /> Department of Health Services for toluene is 100 ppb To conform with the laboratory <br /> reports, we report groundwater chemical data in units of ppb. <br /> SHELLSIFPROCED <br />