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' Summary of Northern California Youth Correctional Center Sampling Results for February 17,2011 <br /> Forward Landfill-Austin Road Unit,California Page 2 <br /> standard. During the February 2011 sampling event, the indoor faucet was supplied by the city <br /> ' waterline system and not by NCYCC water supply wells. <br /> Quality assurance samples collected during the February 2011 sampling event included a field blank at <br /> ' Well#4,a field blank at the indoor faucet,a trip blank,and duplicate samples at Well#4 and the indoor <br /> faucet. The field blank sample at Well#4 was collected to provide an indication of VOCs present in <br /> the ambient outdoor air or the laboratory analytical process. The field blank sample at the indoor faucet <br /> location was collected to provide an indication of VOCs present in the ambient indoor air or the <br /> laboratory analytical process. The trip blank sample was collected to provide an indication of any <br /> VOCs associated with shipment or the laboratory analytical process. The duplicate samples were <br /> ' collected to provide an indication of sampling and laboratory testing reproducibility. <br /> The February 2011 field blanks at Well#4 and the indoor faucet yielded no detections. No VOCs were <br /> detected in the trip blank. Duplicate sample results for the February 2011 sampling event were similar <br /> to the original sample results,indicating good reproducibility. <br /> Sincerely, <br /> Herst&Associates,Inc. <br /> Erin Fanning Ward Herst,PG,HG <br /> Staff Biologist Managing Partner <br /> California PG#7150 <br /> California HG#775 <br /> iCc: Howard Hold—RWQCB <br /> Robert McClellon—San Joaquin County LEA <br /> ' Reuben Ramirez—Forward,Inc. <br /> Don Litchfield—Forward,Inc. <br /> Attachments: Table 1—VOC Detection Tables per Location <br /> Laboratory Analytical Results <br />