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1 <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.com <br /> • QC REPORT <br /> ' EPA 8015m + 8020 <br /> 1 <br /> Date: 05/07/02 Extraction: EPA 5030 Matrix: Water/Air <br /> 1 Concentration: uglL %Recovery <br /> Compound Amount RPD <br /> Sample: MS M5D Spiked MS ; MSD <br /> SampleID: 50702 Instrument GC-12 <br /> Surrogatel ND 102.0 101.0 100.00 102 101 1.0 <br /> ' Xylenes ND ', 29.9 30.0 30.00 100 100 0.3 <br /> Ethylbenzene ND 11.0 10.0 10.00 j 110 100 9.5 <br /> Toluene ND 10.0 10.0 10.00 100 ', 100 I 0.0 <br /> Benzene ND 10.0 10.0 10.00 100 100 0.0 <br /> ' MTBE ND 9.0 9.1 10.00 90 91 1.1 <br /> TPM (gas) ND 95.3 97.2 100.00 95 97 2.0 <br /> II <br /> 1 <br />' [MS—San+ple� <br /> gb <br /> Re cavery= Anrawaspiked '100 <br /> (MS'—MSD <br /> RPD= •2.100 <br />' (MS+MSD) <br /> RPD means Relative Percent Deviation <br />