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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 1 http//www mecampbell corn E-mail roam@mccampbell c6m <br /> • QC REPORT <br /> VOCs (EPA 824018260) <br /> Date 05/26/02 Extraction EPA 5030 Matrix Water <br /> 1 Concentration uglL %Recovery <br /> Compound Amount T -� RPD <br /> Sample MS MSD Spiked MS MSD <br /> Sam IeID 52602 Instrument GC4 <br /> ' Surrogate ND 1000 1020 10000 100 102 20 <br /> tert-Amyl Methyl Ether ND 100 110 1000 100 110 95 <br /> Methyl tert-Butyl Ether ND 96 98 1000 96 98 21 <br /> 1 Ethyl tert-Butyl Ether ND 110 110 1000 11D 110 00 I <br /> Dr-isopropyl Ether ND 100 11 0 1000 100 110 [__95 <br /> 1 <br /> 1 <br /> i <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> (MS-Smnple� <br /> 1 %Re covey= Amo--piked I00 <br /> I (MS—MSP) E <br /> RPD- 2100 <br /> (AIS+A,&D7 <br /> RPD means Relative Percent Deviation <br /> I <br /> ' I <br />