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t <br /> �-+ 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br />' MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 24 http Hwww mccampbell corn E-mail main@mccampbell corn <br /> QC REPORT <br /> VOCs EPA 8240/8260 <br />' Date 05/17/02 Extraction EPA 5030 Matrix Water/Air <br /> Concentration ug/L %Recovery <br /> Compound Amount RPD <br />' Sample MS MSD Spiked MS MSD <br /> SamplelD 51702 Instrument GC-4 <br />' Surrogate ND 1020 1050 10000 102 105 29 <br /> Methyl tert-Butyl Ether ND 100 102 1000 100 102 20 <br />' Toluene ND 100 99 1000 100 99 10 <br /> Benzene ND 100 100 1000 100 100 0 0 <br /> Chlorobenzene ND 100 100 1000 100 100 0 0 <br /> Trichloroethene ND 84 85 1000 84 85 1 2 <br /> 1,1-Dichloroethene ND 84 86 1000 84 86 2 4 <br /> i <br /> MS—Sample <br /> Re eovery= Amo-dprked 100 <br />' <br /> AIS—MSD RPD= 2100 <br /> (AtiS+1LLSD) <br /> RPD means Relative Percent Deviation <br />