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110 2nd Ave. South,#D7,Pacheco, CA 94553-5560 <br /> McCAfMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax: 925-798-1622 <br /> http://www.mccampbell.com E-mail: main@mccampbell.com <br /> 1 <br /> QC REPORT <br /> 1 <br /> EPA 8015m + 8020 <br /> Date: 12/12/01 Extraction: EPA 5030 Matrix: Air <br /> Concentration: ug/L %Recovery <br /> Compound Amount RPO <br /> Sample; MS MSD Spiked MS MSD <br /> SamplelD: 121201 fnstrument: GC-12 <br /> Surrogatel ND 98.0 99.0 100.00 98 99 1.0 <br /> Xylenes ND 33.1 34.0 30.00 110 113 2.7 <br /> Ethylbenzene I ND 10.7 11.2 10.00 107 112 4.6 E <br /> Toluene <br /> ND 10.5 10.9 10.00 105 109 3.7 I <br /> Benzene ! ND 10.1 ; 10.5 10.00 101 105 3.9 <br />' MTBE ND 8.8 9.2 E 10.00 88 92 4.4 <br /> TPH (gas) ND 95.5 94.9 100.00 96 95 0.7 <br /> t <br /> �f <br /> YLC—Sample} <br /> °6ltcCON ery= app <br /> AmouniSprked <br /> MS—MSD) <br /> RPD= •2.300 <br /> 1 (,LLS+A&D) <br /> RPD means Relative Percent Deviation <br />