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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 /> TM Spokane East 11115 Montgomery Suite B Spokane WA 99206 4776 <br /> C. 0 <br /> 509 924 9200 fax 509 924 9290 <br /> Portland 9405 SW Nimbus Avenue Beaverton 0R 97008 7132 503 906 9200 fax 503 906 9210 <br /> Bend 20332 Empire Avenue Smte F 1 Bend OR 97701 5711 <br /> www ncalabs coal 541 383 9310 fax 5413827588 0 <br /> ERM-West(Walnut Creek) Project UPRR Stockton 936 East Weber <br /> 1777 Botelho Dr Suite 260 Project Number 8187 25 Reported <br /> Walnut Creek CA,94596 Project Manager Wade Starnes 10/23/01 13 28 <br /> BTEX, MTBE and Naphthalene by WDOE Interim TPH Policy Method using GUMS - Quality Control <br /> North Creek Analytical- Bothell <br /> Reporting Spike Source %RE RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1J03024 Prepared 10/03/01 Usmg EPA 5030B <br /> Blank(lJ03024-BLKI) <br /> Benzene ND 100 ug/1 <br /> Toluene ND 100 ' <br /> Bthylbenzene ND 100 " <br /> m,p-Xylene ND 200 " <br /> o-Xylene ND 100 <br /> Surrogate 12-DCA-d4 182 200 910 73-137 <br /> Surrogate Toluene-d8 178 200 890 75-124 <br /> Surrogate 4-BFB 191 200 955 77-110 <br /> LCS(1J03024-BS1) <br /> Benzene 106 100 ug/1 100 106 80-120 <br /> Toluene 9 63 100 100 963 80-120 <br /> Surrogate 1 2-DCA-d4 185 200 92 5 73-1.37 <br /> Surrogate Toluene-d8 182 200 910 75-124 <br /> Surrogate 4-BFB 197 200 985 77-120 <br /> LCS Dup(1303024-BSD1) <br /> Benzene 103 1 00 ug/1 10 0 103 80-120 287 20 <br /> Toluene 9 03 1 00 10 0 903 80-120 643 20 <br /> Surrogate 12-DCA-d4 179 200 895 73-137 <br /> Surrogate Toluene-d8 175 200 875 75-124 <br /> Surrogate 4-BFB 198 200 99 0 77-120 ' <br /> Matrix Spike(1J03024-MSI) Source BlJO040-03 <br /> Benzene 11 1 100 ug/I 100 ND 111 75-125 <br /> Toluene 961 100 100 ND 961 72-125 <br /> Surrogate 12-DCA-d4 187 200 93 5 73-137 <br /> Surrogate Toluene-d8 175 200 875 75-124 <br /> Surrogate 4-BFB 194 200 970 77-120 <br /> Northree Analytical-Bothell The results to this report apply to the samples analyzed in accordance with the chain <br /> �. custody document This analytical report must be reproduced in its entirety ' <br /> 4" North Creek Analytical,Inc Page 9 of 16 , <br /> Kirk Gendron,Project Manager Environmental Laboratory Network <br />