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Seattle 11720 North Creek Pkwy N Suite 400 Bothell WA 98011 8244 <br /> 425 420 9200 fax 425 420 9210 <br /> n"I <br /> TM Spokane East 11115 Montgomery Suite S Spokane WA 99206 4776 <br /> 509 924 9200 fax 509 924 9290 <br /> 1Portland 9405 SW Nimbus Avenue Beaverton OR 97008 7152 <br /> 503 908 9200 tax 503 906 9210 <br /> Bend 20332 Empira Avenue Suite F I Bend OR 97701 5711 <br /> www ncalabs cont 541 383 9310 fax 541 382 7588 <br />' ERM-West(Walnut Creek) Project UPRR Stockton <br /> 1777 Botelho Dr Suite 260 Project Number 8187 25 Reported- <br /> Walnut Creek CA,94596 Project Manager Wade Starnes - 04/05/01 11 30 <br /> BTEX by EPA Method 8260B - Quality Control <br />' Sequoia Analyheal - San Carlos <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br />' Batch 1030107 Prepared 03/30/01 Using EPA 5030B [P/TJ <br /> Blank(1030107-BLKI) <br /> Benzene ND 200 ug/l <br />' Toluene ND 200 " <br /> Ethylbenzene ND 2 00 <br /> Xylenes(total) ND 200 " <br /> Surrogate 12-Dichloroethane-d4 494 500 988 76-114 <br /> Surrogate Toluene-d8 513 Soo 103 88-110 <br /> Surrogate 4-BFB 446 500 892 86-115 <br />' LCS(1030107-BSI) <br /> Benzene 527 200 ugA 500 105 70-130 <br /> uene 506 200 500 101 70-130 <br /> llrqWragate 1 2-Dichloroethane-d4 -500 500 100 76-114 <br /> Surrogate Toluene-d8 509 500 102 88-110 <br /> Surrogate 4-BFB 482 500 964 86-115 <br /> Matrix Spike(1030107-MSI) Source L103153-09 <br /> Benzene 515 200 ug/l 50 0 ND 103 60-140 <br /> Toluene 504 200 50 0 ND 101 60-140 <br /> Surrogate 1,2-Dichloroethane-d4 SOD 500 100 76-114 <br /> Surrogate Toluene-d8 514 500 103 88-110 <br /> Surrogate 4-BFB 479 500 958 86-115 <br />' Matrix Spike Dup(1030107-MSD1) Source L103153-09 <br /> Benzene 546 200 ug/l Soo ND 109 60-140 584 25 <br /> Toluene 53 2 200 500 ND 106 60-140 541 25 <br /> Surrogate 1 2-Dichloroethane-d4 528 500 106 76-114 <br /> Surrogate Toluene-d8 511 500 101 88-110 <br /> Surrogate 4-BFB 466 SO 0 932 86-115 <br /> Orth Creek ALcalothell The results in this report apply to the samples analyzed in accordance with the chain of <br />' custody document This analytical report must be reproduced in its entirety <br /> Kirk Gen on Project Manager North Creek Analytical,Inc page 10 of 12 <br /> Environmental Laboratory Network <br />