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2f016 qac MS_MSD <br /> 1 <br /> LABORATORY QC REPORT ONSITE <br /> EMAROOREG <br /> �Aeaw�r INC <br /> VOLATILE ORGANICS BY GC/N1S EPA 8260B <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 /> Project No 37973009NA 00 <br /> Spiked sample ID MW-13-45 5 Units µg/L <br /> Matrix water <br /> Lab 1D Number 2FO16-01 Spike Level 2f 016-01 MS 2FO16-01 MSD RPD <br /> concentr %recov concentr % recov % <br /> Tar et Compounds RL <br /> 10 MTBE 05 1 24 50 5335 104°0 5266 103% 13% <br /> Benzene 0 5 3644 50 71 29 70% 7224 72% 13% <br /> Toluene 0 5 ND 50 4799 96% 46 11 92% 40% <br /> Ethvl Benzene 05 ND 50 5103 102% 48 93 98010 4 2°0 <br /> in -Xylene 0 5 1 39 100 10096 100% 9641 9546 46% <br /> o-Xvlene 0 5 ND 50 51 51 103% 4881 9800 54010 <br /> Dlbromofluoramethane 95% 97% 1 99% <br /> 1 2 Dlchloroethane d4 93% 101% 103% <br /> Toluene d8 surr 98% 100% 98% <br /> 4 Bromofluarobenzena 96% 98% 97% <br /> Dilution factor(DF) 1 1 1 <br /> Notes ND Analytes not detected at or above the stated detection limit <br /> RL Reporting limit <br />' DF Dilution Factor <br /> PQL Practical Quantitation Limit Multiply RL by the DF to obtain the PQL far a specific sample <br /> QC Limits %recovery 75% 120% <br /> RPD <20% <br /> 0nsge Fnvnonmefllal Laboramnes Inc 5500 Bns"ll Common Fremont CA 94538 Tel 15101490 8571 FaK 15101490 8572 <br />