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110 2nd Ave South,#137,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> h //www mccam bell com E-mail main@mccampbell corn <br /> QC REPORT <br /> I EPA 8015m + 8020 <br /> Date 08/15/01 Extraction TTLC Matnx Water <br />' Concentration ug/L %Recovery <br /> Compound Amount i, RPD <br /> Sample MS MSD <br /> Spiked MS MSD 1 <br />' SamplelD 81001 - - Instrument GC-12 <br />' Surrogatel ND 920 900 10000 92 90 2 2 <br /> Xylenes ND 313 307 30 00 104 102 1 9 <br /> Ethylhenzene ND 102 100 1000 102 100 20 <br />' Toluene NDT10 1 100 1000 101 100 10 <br /> Benzene ND 101 9 9 1000 101 99 2 0 <br /> tMTBE ND 11 1 11 2 _ 1000 111 112 0 9 <br /> TPH (gas) ND 85 6 872 10000 1 86 87 1 9 <br /> 1� <br /> 1 <br /> MS—Sample <br />' %Recovery= Anjoundpiked 100 <br /> AIS-AL4D) <br /> "D= 2100 <br />' (MS+MSD) <br /> RPD means Rekative Percent Deviation <br />