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1 <br /> 110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br />' McCAWBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 44 http//www mccarnphell com E-mail main@mccamphell corn <br /> QC REPORT <br />' EPA 8015m + 8020 <br /> 1 <br />' <br /> Date 05/16/02 Extraction EPA 5030 Matrix Water <br /> i <br /> Concentration ug/L %Recovery <br /> Compound Amount RPD <br /> Sample MS MSD Spiked MS MSD <br />' SamplelD 51602 Instrument GC-3 <br />' Surrogatel ND 1020 1020 10000 102 102 Go <br /> Xylenes ND 295 299 3000 98 100 1 3 <br />' Ethylbenzene ND 98 100 1000 98 100 20 <br /> Toluene ND 97 100 1000 97 100 30 <br /> Benzene ND 94 9 6 1000 94 96 21 <br /> MTBE ND 9 6 9 5 10 00 96 95 1 0 <br /> TPH (gas) ND 101 9 101 5 10000 102 102 04 <br /> 1 <br /> 1 <br /> 1 <br /> I <br /> i <br />' (MS—Sample) <br /> %Re wvery= Am—aSW 100 <br /> p <br /> (a-sss-�sn) <br /> RPD= 2100 <br /> (Nss+nen) <br /> RPD means Relahvc Percent Deviation <br />