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i <br /> � F <br /> Working,To Restore Nature <br /> Hydrochloric acid (or other appropriate chemical) was added to the sample vials as a <br /> preservative A sample of the formation water then was collected from the surface of the water <br /> in each of the wells with disposable clean Teflon bailer and slowly transferred to laboratory- <br /> cleaned sample containers <br /> Water Sam le Labelin2 and Handlin <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 iced <br /> storage for transport to the laboratory The technician or geologist initiated Chain of Custody <br /> Records in the field that accompanied the samples to a laboratory certified by the State of <br /> California for the analyses requested Samples were transported to the laboratory promptly. <br /> Samples in our custody were properly disposed of after their useful life had expired. <br /> • Reporting Results of Analyses <br /> Hydrocarbon constituents in groundwater samples are reported by the laboratory in units of parts <br /> per billion (ppb). The maximum contaminant levels listed in Title 22 of the California Code of <br /> Regulations for benzene, ethylbenzene, and total xylene isomers to drinking water are 1.0, 680, <br /> and 1,750 ppb, respectively. The action level established by the California Department of <br /> Health Services for toluene is 100 ppb To conform with the laboratory reports, we report <br /> groundwater chemical data in units of ppb. <br /> SHELLSTPROCED <br /> I <br />