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i110 2nd Ave South,#137,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell com E-mail mai a(,mccampbell com <br />' QC REPORT <br /> EPA 8015m + 8020 <br /> Date 03/05/02 Extraction EPA 5030 Matrix Air <br /> Concentration uglL %Recovery <br /> Compound Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> S_amplelD 30502 Instrument GC-3 <br /> Surrogatel ND 1010 1000 10000 101 100 10 <br /> Xylenes ND 303 299 3000 101 100 13 <br /> Ethylbenzene ND 100 99 1000 100 99 10 <br /> Toluene ND 99 98 10 00 99 98 1 0 <br /> Benzene ND 9 fi 9 5 1000 96 95 1 0 <br /> MTBE ND 91 8 8 1000 91 88 34 <br /> TPH (gas) ND 876 86 5 10000 88 86 1 3 <br /> lie - <br /> 1 <br /> (M5—Smuple) <br /> Re covery= AnjounlSprked 100 <br /> (MS—MSD} <br /> RPD= 2100 <br /> (MS+MSD) <br /> RPD means Relative Percent Deviation <br />