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GeoAnalytical Laboratories, Inc. <br />1405 Kansas Avenue Modesto, CA 95351 Phone (209) 572-0900 Fax (209) 572-0916 <br />CERTIFICATE OF ANALYSIS <br />Report# Q266-16 BTEXPte.2962 604 <br />004 <br />Wright Environmental Services Project: Tank Pulls @ LLNL Site 300 DaE�I Y FJ ,�It_� ,� <br />707 East 11th St. Date ; , �r, 3 f 0 <br />Date om}.204 <br />Tracy CA 95376 PO# <br />Date Sampled: 9/22/04 <br />Sampler: R. Azevedo (Geo) <br />Sample ID Lab ID RL Method Analyte Results Units <br />TK2-North ® 12' Q201498 5.0 8021B Benzene ND µg/Kg <br />5.0 Toluene ND µg/Kg <br />5.0 Ethyl Benzene ND µg/Kg <br />5.0 Total Xylenes ND µg/Kg <br />Surrogate Amnt Spiked Amnt Rec. % Recovery QC Limit % <br />a,a,a-TFT 250 212 84.8 66-117 <br />TK2-West ® 12' Q201499 5.0 8021B <br />Benzene <br />ND <br />µg/Kg <br />5.0 <br />Toluene <br />ND <br />µg/Kg <br />5.0 <br />Ethyl Benzene <br />ND <br />µg/Kg <br />5.0 <br />Total Xylenes <br />ND <br />µg/Kg <br />Surrogate <br />Amnt Spiked <br />Amnt Rec. % Recovery <br />QC Limit % <br />a,a,a-TFT <br />250 <br />204 81.6 <br />66-117 <br />TK 1 West ® 11' Q201502 5.0 8021 B <br />Benzene <br />ND <br />µg/Kg <br />5.0 <br />Toluene <br />ND <br />µg/Kg <br />5.0 <br />Ethyl Benzene <br />ND <br />µg/Kg <br />5.0 <br />Total Xylenes <br />ND <br />µg/Kg <br />Surrogate <br />Amnt Spiked <br />Amnt Rec. % Recovery <br />QC Limit % <br />a,a,a-TFT <br />250 <br />179 71.6 <br />66-117 <br />Iari <br />Gtr �w <br />o D'Onofrio <br />Chemist <br />Certification # 1157 <br />Donna Keller <br />Laboratory Director <br />