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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 /> http://www.mccampbell.com E-mail: main@mccampbell.corm <br /> QC REPORT <br />' VOCs (EPA 824018260) <br />' Date: 10/11/01-10/12/01 Extraction: N/A Matrix: Water <br /> Concentration_ ug/L %Recovery <br /> Compound Amount RFD <br /> Sample; MS MSD Spiked MS ; MSD <br /> 1 .1 <br /> SamplelD: 101101 Instrument: GC-10 <br />' Surrogate ND 94.0 94.0 100.00 94 94 0.0 <br /> tert-Amyl Methyl Ether ND 9.3 9.1 10.00 93 91 2.2 <br /> Methyl tent-Butyl Ether NO 8.8 8.6 10.00 88 86 2.3 <br />' Ethyl tert-Butyl Ether ND 9.2 9.0 10.00 92 90 2.2 <br /> Di-isopropyl Ether NO 8.9 8.8 �I 10.00 89 88 1.1 <br />' Toluene ND 9.2 9.2 10.00 92 92 0.0 <br /> Benzene NO 8.6 8.4 10.00 86 84 2.4 <br />' Chlorobenzene NO 9.5 9.3 10.00 95. 93 2.1 <br /> Trichloroethane ND 7.5 7.2 10.00 75 72 4.1 <br />' 1,1-Dichioroethene NO 10.9 10.6 10.00 109 106 2.8 <br /> I <br /> I <br /> I <br /> I <br /> I <br />' (Ms-sample) <br /> %Recovery= 100 <br /> Amoanl$piked <br /> (MS--MSD) <br /> RPD= .2.100 <br />' (MS+MSD) <br /> RPA means Relative Percent Deviation <br />