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_ Seattle I1720 North Ci eek Pkvvy N Suite 400 Bothell VVA 98011 8244 <br /> 425 420 9200 tax 425 420 9710 <br /> -- i 11A Spoftano East 11115 8dontgomery Suite B Spol'ana WA 99206 4776 <br /> 1 fr�N ��Z 509 974 9200 Pax 5119 924 9290 <br /> + (Portland 9405 SW Nimbus Avenue Beaverton OR 97008 7132 <br /> c t 503 906 9200 fax 503 906 9210 <br /> Bend 20332 Empire Avenue Suite F 1 Bend OR 97701 5711 <br /> www ncalabs cam 541 383 9310 fax 541 382 7588 <br /> ERM-West(Walnut Creek) Project UPRR Stockton <br /> E777 Botelho Dr Suite 260 Project Number 817525 Reported <br /> Walnut Creek CA,94596 Project Manager Wade Starnes 07/05/01 11 09 <br /> BTEX by EPA Method 8260B - Quality Control <br /> Sequoia Analytical - San Carlos <br /> Reporting Spike Source %REC RPD <br /> JAnalyte Result Limit Units Level Result %REC Limits RPD Limit 7NotII <br /> Balch 1060133 Prepared 06/28/01 Using EPA 5030E [P/TJ <br />' Blank(1060133-BLKI) <br /> Benzene ND 10 ug/l <br />' Toluene ND 10 " <br /> Ethylberizene ND 1 0 " <br /> !!J !es(total) ND 1 0 " <br /> Surrogate 12-Drchloroethane d4 515 50 0 103 76-114 <br /> Surrogate Toluene-d8 51 7 500 103 88-110 <br /> Surrogate 4-BFB 524 500 105 86-115 <br /> Blank(1060133-BLK2) <br /> Benzene ND 1 0 ug/l <br /> Toluene ND 10 " <br /> (benzene ND 10 <br /> nes(total) ND 10 " <br /> Surrogate 1,2-Dichloroethane-d4 511 Soo 102 76-114 <br /> Surrogate Toluene-d8 502 50 0 100 88-110 <br /> Surrogate 4-BFB 511 500 102 86-115 <br /> LCS(1060133-BSI) <br /> Benzene 53 0 1 0 ug/l 50 0 106 70-130 <br /> Toluene 499 1 0 500 99 8 70-130 <br /> Surrogate 1 2-Dichloroethane-d4 515 50 0 103 76-114 <br /> Surrogate Toluene-d8 518 500 104 88-110 <br /> Surrogate 4-BFB 318 Soo 104 86-115 <br /> LCS(1060133-BS2) <br /> Benzene 581 1 0 ugA 50 0 116 70-130 <br /> Toluene 53 4 10 „ Soo 107 70-130 <br /> Surrogate 12-Dichloroethane-d4 506 500 101 76-114 <br /> Surrogate Toluene-d8 500 500 100 88-110 <br /> Surrogate 4-BFB 494 500 988 86-115 <br /> I <br /> I <br /> CZ <br /> -Bothell 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 GeManager North Creel(Analytical,Inc page 8 of 12 <br />' Environmental Laboratory Network <br />