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e 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 /> 509 924 9200 fax 509 924 9290 <br /> ne <br /> Portland 9405 SW Nimbus Avenue Beaverton OR 97008 7132 <br /> „, � 503 906 9200 fax 563 906 9210 <br /> Send 20332 Empire Avunue Swte F I Bend OR 97701 5111 <br /> www ncalabs com 541 383 9310 tax 541 382 7588 <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 /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> North Creek Analytical- Bothell <br /> Reporting Spike Source %REC PPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br />,Batch 1J09039 Prepared 10/09/01 Usmg EPA 5030B <br /> Matrix Spike Dup(1J09039-MSD1) Source BlJO040-05 <br /> Dtisopropyl ether 960 100 ug/I 100 ND 960 60-140 11 0 40 <br />�Methyl tert-butyl ether 119 0 500 100 ND 119 60-140 294 40 <br /> tert-Butyl Alcohol 616 500 500 ND 123 60-140 327 40 <br /> Surrogate 12-DCA-d4 235 200 118 73-137 <br />'Surrogate Toluene-d8 210 200 105 75-124 <br /> Creek a ytica -Bothell The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document Thu analytical report must be reproduced in its entirety <br /> " North Crook Analytical,Inc Page 14 of 16 <br />'Kirk Gendron,Project Manager Environmental Laboratory Network <br />