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110 2nd Ave South,#D7,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> h#tp//www mccampbell com E-mail maln@mccampbell com <br /> QC REPORT <br /> VOCs (EPA 824018260) <br /> Date 04/05/00-04/06/00 Matrix Water <br /> Extraction NIA <br /> Concentration ug/L %Recovery <br /> Compound Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> SamplelD 41000 - Instrument GC-10 <br /> Surrogate 0 000 970 950 10000 97 95 21 <br /> tert-Amyl Methyl Ether 0 000 1050 1040 10000 105 104 1 0 <br /> Methyl tert-Butyl Ether 0 000 830 820 10000 83 82 1 2 <br /> i Ethyl tart-Butyl Ether 0 000 930 930 10000 93 93 00 i <br /> Di-isopropyl Ether 0 000 91 0 900 10000 91 90 1 1 <br /> Surrogate 0 000 1170 1120 I 10000 117 112 44 <br /> Tolune 0 000 890 940 10000 89 94 55 <br /> Benzene 0 000 98 0 1030 10000 98 103 5 0 <br /> Chlorobenzene 0 000 820 850 10000 82 85 3 6 <br /> Trichloroethane 0 000 800 820 10000 80 82 2 5 <br /> 1,1-Dichloroethene 0 000 1150 1120 10000 115 112 2 6 <br /> I <br /> MS—Snmple� <br /> Re covery= loo <br /> AmomrfSpiked <br /> MS—MSD) <br /> RPD— 2100 <br /> MS+MSD) <br /> RPD means Relative Percent Deviation <br />