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110 2nd Ave South,#D7,Pacheco,CA 94553-5560 <br /> MCCA VTBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> bftp ww e c B-rrml mam@mccampbell com <br /> 1/w <br /> QC REPORT <br /> ' VOCs (EPA 8240/8260) <br /> ' Date 07107100-07108100 Matrix Water <br /> Extraction NIA <br /> Concentration ug/L %Recovery <br /> Compound Amount RPD <br /> IS <br /> ample MS M50 Spiked MS MSD <br /> SamplelD 70800 <br /> Instrunsent. GC-10 <br /> ' Surrogate t]000 1080 1000 10000 108 100 7 7 <br /> tent-Amyl Methyl Ether 0 000 950 990 100 00 95 99 41 <br /> Methyl tert Butyi Ether 0 000 1020 1050 100 00 102 105 29 <br /> Ethyl tert Butyl Ether 0 000 990 1010 10000 99 101 20— <br /> Di-isopropyl <br /> 0Di-isopropyl Ether 0 000 890 920 100 O0 89 92 3 3 <br /> MS—Sample <br /> %Re covery= 100 <br /> .imountSpcted <br /> RPD=(MS—MSU 2100 <br /> MS+MSD) <br /> RPD means keiatrve Percent Demuou <br />