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2f016 qac LCS Blk <br /> LABORATORY QC REPORT ONSITE <br /> ENVIRONMENTAL <br /> VOLATILE ORGANICS BY GC/MS EPA 8260B LBOFtATORES INC <br /> Date analyzed 4/7/99 Project Mgr George Piantka <br /> Report# 2FO16 qac Client URS Greiner Woodward Clyde <br /> Lab ID# 2FO16 Project Caltrans Shop 10 <br /> Protect No 37973009NA.00 <br /> Units pg/L <br /> Matrix water <br /> Lab ID Number M BIank Spike level LCS QC Limits <br /> concentr % recovery <br /> Target Compounds RL <br /> MTBE 05 ND 75 6847 91% 85%- 115% <br /> Benzene 0 5 ND 75 6649 89% 85%- t 15010 <br /> Toluene 0 5 ND 75 64 80 86% 85%- 115% <br /> Ethyl Benzene 0 5 ND 75 68 94 92% 85%- 115% <br /> m,p-Xylene 0 5 ND 150 132 59 88% 85%- 1150/0 <br /> o-Xvlene 05 ND 75 6869 92% 85%- 115% <br /> TPH-Gasoline 50 ND - - - - <br /> Dlbromofluoromethane 97% 99% <br /> 1 2 Dlchloroethene-d4 92% 98% <br /> Toluene-de Burr 100% 100% <br /> 4-13romofluorob7ene 77d 94% 97% <br /> Dilution factor(OF) 1 1 <br /> Notes NO-Analytes not detected at or above the stated detection lima <br /> RL Reporting limit <br /> OF Dilution Factor <br /> PQL Practical Quantitation Limit- Multiply RL by the OF to obtain the PQL for a specific sample <br /> I <br /> i <br /> onsite Environmental Laboratories Inc 5500 805cell Common Frrmont CA 94538 Tel (510)490 8571 Fax {5101490 0572 <br />