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110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR HYDROCARBON .ANALYSES <br /> ' Date 04/01/97 Matrix Water <br /> ' [ I Concentration (mg/L) [ % Recovery [ <br /> [ Analyte [ Sample Amount RPD <br /> ] (#74791) MS MSD Spiked MS MSD <br /> TPH (gas) [ 0 0 88 7 97 4 I 100 0 [ 88 7 97 4 9 4 [ <br /> 1 [ Benzene [ 0 0 9 1 9 5 10 0 91 0 95 0 4 3 <br /> [ Toluene [ 0 0 9 3 9 8 10 0 93 0 98 0 5 2 <br /> [ Ethyl Benzene [ 0 0 9 5 10 2 10 0 I 95 0 102 0 7 1 <br /> [ Xylenes [ 0 0 28 1 30 6 I 30 0 [ 93 7 102 0 8 5 <br /> ITPH (diesel) [ 0 140 139 150 93 93 0 9 <br /> [ TRPH I 0 24000 23400 23700 [ 101 99 2 5 [ <br /> (oil & grease) i I I [ <br /> ' 6 Rec n (ms - sample) / amount spiked x 7.00 <br /> RN) _ (MS - MSD) / (MS + MSD) x 2 x 100 <br />