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110 2nd Ave South,t1D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> httn Nwww.mccamnbell.com E-mail mamQmccampbell com <br /> QC REPORT <br /> VOCs (EPA 824018260) <br /> Date 12130199-12131199 Matnx Water <br /> Extraction NIA <br /> ' Concentration ug1L %Recovery <br /> Compound Amount RP© <br /> Sample MS MSD Spiked MS MSD <br /> ' SamplelD 28358 Instrument GC-10 <br /> t Tolune 0 000 1190 1000 10000 119 100 17 4 <br /> ' Benzene 0 000 1200 1110 10000 120 111 78 <br /> Chlorobenzene 0 000 1250 1070 10000 125 107 155 <br /> ' Tnchloroethane 0 000 1100 930- <br /> 10000 110 93 167 <br /> 1,1-Dichloroethene 0 000 990 870 10000 99 87 129 <br /> ' f tret-Amyl Methyl Ether 0 000 820 84 0 10000 1182 84 24 <br /> Methyl tret-Butyl Ether 0 000 850 goo 10000 85 90 57 <br /> Ethyl tret-Butyl Ether 0 000 88 0 950 10000 88 95 77 <br /> ' Di-isopropyl Ether 0 000 1200 119_.0j 100 00 120 119 08 <br /> 1 <br /> 1 <br /> 1 <br /> ' �MS—Sample <br /> Re covery= AmounrSpiked 140 <br /> (MS—MSD <br /> ' RPD= 2140 <br /> MS+M$D) <br /> RPD means Relative Percent Deviation <br />