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A <br /> S <br /> Quality Assurance Report <br /> t <br /> ww—�..��n auinw�w i�mnw�inia���unn a i.n� r�e�wwww.^ <br /> MTBE by GUMS in Water <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %R-EC Limits RPD Limit Notes <br /> Batch BOO]148-EPA 5030 GC/MS <br /> Blank(B001148-BLK1) Prepared&Analyzed 06/12/06 <br /> Methyl tert-Butyl Ether (MTBE) ND 10 µg/L <br /> Surrogate Drbromofluoromethane 214 uglL 200 107 70-130 <br /> Surrogate Toluene-d8 210 11g/L 200 105 70-130 <br /> Surrogate 4-Bromofluorobenzene 21 7 µg1L 200 108 70-130 <br /> Matrix Spike(B001148-MSI) Source 6060906-01 P_repared&Analyzed 06/12/06 <br /> 1,1-Dichloroethene(1,l-DCE) 258 1 0 pg/L 250 ND 103 70-130 <br /> Benzene 270 1 0 pg/L 250 ND 108 70-130 <br /> Trichloroethene(TCE) 269 1 0 µg/L 250 ND 108 70-130 <br /> Toluene 26 1 t 0 µg/L 250 ND 104 70-130 <br /> Chlorobenzene 238 1 0 µg/L 250 ND 95 70-130 <br /> *ate Drbromofluoromethane 222 lig/L 200 111 70-130 <br /> gate Toluene-d8 21 7 Pg/L 200 108 70-130 <br /> Surrogate 4-Bromofluorobenzene 190 ug/L 200 95 70-130 <br /> Matrix Spike Dup_(BO01148-MSD1) Source 6060906-01 Prepared&Analyzed 06/12/06 _ <br /> 1,1-Dichloroethene(1,1-DCE) 260 1 0 pg/L 250 ND 104 70-130 1 20 <br /> Benzene 270 10 µg/L 250 ND 108 70-130 0 20 <br /> Trichloroethene(TCE) 268 t 0 µg/L 250 ND 107 70-130 0 9 20 <br /> Toluene 266 1 0 µg/L 250 ND 106 70-130 2 20 <br /> Chlorobenzene 243 1 0 µg/L 25 0 ND 97 70-130 2 20 <br /> Surrogate Drbromofluoromethane 223 Ug/L 200 112 70-130 <br /> Surrogate Toluene-d8 218 µg/L 200 109 70-130 <br /> Surrogate 4-Bromofluorobenzene 18 7 Ug/L 200 94 70-130 <br /> Page 3 of 4 <br /> Lab Protect# 6060906 CA Lab Accreditation 4 2303 <br />