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* 110 2nd Ave South,#D7,Pacheco, CA 94553-5560 <br /> McCAtMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbeli com E-mail main@mecampiiell corn <br /> QC REPORT <br /> EPA 8015m + 8020 <br /> Date 11/13/01 Extraction TTLC Matrix Water <br /> Concentration ug/L %Recovery <br /> Compound AmountRPD <br /> Sample MS MSD Spiked MS MSD <br /> SampielD 111201 Instrument GC-7 <br /> Surrogatel ND 1070 1070 10000 107 107 <br /> 00 <br /> Xylenes ND 31 7 332 3000 106 111 46 <br /> Ethylbenzene ND 107 112 1000 107 112 46 <br /> LToiuene ND 106 11 3 1000 E 106 113 1 64 <br /> Benzene ND 9 6 108 1000 96 108 Ij 11 8 <br /> MTBE ND 8 8 105 1000 88 105 176 <br /> TPH(gas) ND 994 1040 10000 99 104 45 <br /> (r&—Smnple) <br /> Re eovery= AmlSp,ked 100 <br /> rnm <br /> (MS—M5D) <br /> RPDA 2100 <br /> (MS+MSD) <br /> RPD means Relative Percent Deviation <br />