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i <br /> 110 2nd Avenue South,#D7,Pacheco, CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell com E-mail main@mccampbell corn <br /> i <br /> QC REPORT <br /> EPA 8015m + 8020 <br /> I <br /> Date 05/14/02 Extraction EPA 5030 Matrix Water/Air <br /> Concentration ug/L %Recovery <br /> Compound Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> SamplelD 51402 Instrument GC-3 <br /> Surrogatel NO 980 970 10000 98 97 10 <br /> Xylenes NO 292 289 3000 97 96 1 0 <br /> Ethylbenzene ND 95 94 1000 95 94 1 1 <br /> Toluene NO 95 93 1000 95 93 21 <br /> Benzene NO 9 2 9 0 1000 92 90 22 <br /> IMTBE NO 8 8 86 1000 88 86 2 3 <br /> TPH (gas) NO 94 5 94 4 10000 94 94 01 <br /> lie <br /> I <br />' (ALS—Sample <br /> 90 Re cuvery= AmoundSprked 100 <br /> A�S''MSD) <br /> RPD= 2100 <br /> I (ALS+AZD) <br /> RPD means Relahve Percent Duration <br />