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A <br /> S <br /> M <br /> Quality Assurance Report <br /> MTBE by GC/MS in Water <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch B001180-EPA 5030 CC/MS <br /> Blank B001180-BLK1 Prepared&Analyzed 06/20/06 - <br /> Methyl tert-Butyl Ether (MTBE) ND 1 0 µg/L <br /> Surrogate D¢bromofluoromethane 221 Ug/L 200 110 70-130 <br /> Surrogate Toluene-d8 216 Jg/L 200 108 70-130 <br /> Surrogate 4-Bromofluorobenzene 170 Pg/L 200 85 70-130 <br /> Matrix Spike B001180-MSISource 606I411-01 Pre ared&Analyzed 06/20/06 <br /> I,]-Dichloroethene(1,1-DCE) 247 1 0 µg/L 25 0 ND 99 70-130 <br /> Benzene 267 1 0 pg/L 250 ND 107 70-130 <br /> Tnchlorocthene(TCE) 267 1 0 pg/L 25 0 ND 107 70-130 <br /> Toluene 27 1 1 0 Ag/l, 250 ND 108 70-130 <br /> Chlorobenzene 25 1 1 0 ltg/L 25 0 ND 100 70-130 <br /> S*ate Dtbromofluoromethane 22 0 uglL 200 110 70-130 <br /> 19Sr7Ti�ogate Toluene-d8 220 Pg/L 200 110 70-130 <br /> Surrogate 4-Bromofluorobenzene 169 ,ug/L 200 84 70-130 <br /> Matrix 5pike Du B001180-MSD1 Source 6061411-01 Prepared&Anal zed 06/20/06 <br /> 1,1-Dichloroethene(1,1-DCE) 25 1 1 0 Ag/L 250 ND 100 70-130 1 20 <br /> Benzene 272 1 0 µg/L 25 0 ND 109 70-130 2 20 <br /> Trichloroethene(TCE) 273 1 0 µg/L 25 0 ND 109 70430 2 20 <br /> Toluene 279 1 0 gg/L 25 0 ND 112 70-130 4 20 <br /> Chlorobenzene 258 1 0 µg/L 25 0 ND 103 70-130 3 20 <br /> Surrogate Dibromofluoromethane 223 Ug/L 200 112 70-130 <br /> Surrogate Toluene-d8 223 Pg/L 200 112 70-130 <br /> Surrogate 4-Bromofluorobenzene 166 Ag/L 200 83 70-130 <br /> Page 3 of 4 <br /> Lab Project#. 6061411 CA Lab Accreditation 4 2303 <br />