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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 Nwww mccam bell com E-mail main@mccampbell corn <br /> QC REPORT <br /> VOCs (EPA 824018260) <br /> Date 04/01/02 Extraction EPA 5030 Matrix Water <br /> Concentration ug/L %Recovery <br /> Compound Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> SamplelD 32802 Instrument GC-10 <br /> Surrogate ND 1010 100 0 I 100 00 101 100 1 0 <br /> tent-Amyl Methyl Ether ND 98 97 ( 1000 98 97 1 0 <br /> Methyl tert-Butyl Ether ND 102 100 1000 102 100 20 <br /> Ethyl tert-Butyl Ether ND 93 90 I 1000 93 90 33 <br /> Di-isopropyl Ether ND 91 89 1000 91 89 i 22 <br /> Toluene ND 95 93 1000 95 93 21 <br /> Benzene ND 9 5 9 3 _10 00 95 93 2 1 <br /> Chlorobenzene ! ND 9 5 9 4 10 00 I 95 94 1 1 <br /> Trichloroethene ND 8 0 82 1000 80 82 I 2 5 <br /> 3 <br /> 1,1-Dichloroethene ND 9 5 9 2 10 00 95 92 IL 32 <br /> (ASS—Sample) <br /> %Re covery= AmoumSpiked 100 <br /> RPD_ 2100 <br /> (AC+A&A) <br /> RPn mwwna RA h— M—t TUw h— <br />