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1 <br /> t 10 2nd Avenue South,#D7, Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' http//www mccampbelI com E-mail mam@mccampbell cam <br /> QC REPORT <br />' VOCs EPA 8240/8260 <br /> 1 <br />' Date 04/25/02 Extraction EPA 5030 Matrix Water <br /> Concentration ug/f_ %Recovery <br /> Compound Amount RPD <br />' Sample MS MSD Spoked M5 MSD <br /> SamplelD 42502 Instrument GC-10 <br />' Surrogate ND 970 970 10000 97 97 00 <br /> tert-Amyl Methyl Ether ND 110 11 0 1000 110 110 0 0 <br />' Methyl tert-Butyl Ether ND 110 120 1000 110 120 87 <br /> Ethyl tert-Butyl Ether ND 110 11 0 1000 110 110 00 <br /> Di-isopropyl Ether ND 100 100 1000 100 100 00 <br /> I <br /> lie <br /> I <br /> I <br /> r <br /> • <br /> (MS—Sample <br /> S6 Re covert' 100 <br /> RmounrSprked <br /> RPD= 2100 <br /> RPD meaes Rdative Percent Deviation <br />