Laserfiche WebLink
��A�� <br /> September 15, 1993 Working To Restore Nature <br /> A. Teichert & Son, Tracy, California <br /> milliliter glass vials that contained concentrated hydrochloric acid as a preservative The <br /> water samples were sealed with Teflon-lined lids to eliminate air bubbles <br /> • The sample containers were labeled in the field with the site identification, monitoring well <br /> number and depth, and date, and promptly placed in iced storage for transport to the <br /> laboratory The technician or geologist initiated Chain of Custody Records in the field that <br /> accompanied the samples to a laboratory certified by the State of California for the analyses <br /> requested Samples were transported to the laboratory promptly Samples in our custody <br /> • were properly disposed of after their useful life had expired <br /> Reporting Results of Analyses <br /> Hydrocarbon constituents in soil samples are reported in units of parts per million <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 /> • <br /> • <br /> • <br /> 0803giak <br /> !230041 <br /> r <br />