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Seattle 11720 North Creek Pkwy N Suite 400 Bothell WA 98011 8244 , <br /> 425 420 9200 tax 425 420 9210 <br /> TM Spokane East 11115 Montgomery Suite B Spokane WA 99206 4776 <br /> 509 924 9200 fax 509 924 9290 <br /> nea <br /> Portland 9405 SW Nimbus Avenue Beaverton OR 97008 7132 <br /> 503 906 9200 fax 503 906 9210 <br /> Bend 20332 Empire Avenue Suite F 1 Bend OR 97701 5711 <br /> (Pwwwncolabscom 5413839310 tax 5413827588 <br /> ERM-West(Walnut Creek) Project UPRR Stockton 936 East Weber , <br /> 1777 Botelho Dr Suite 260 Project Number 818725 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 RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Nates <br /> Batch 1J09039 Prepared 10/09/01 Using EPA 5030B <br /> Blank(lJ09039-BLK1) <br /> Ethanol ND 500 ug/l <br /> 1,2-Dibromoethane ND 0 500 <br /> 1,2-Dichloroethane ND 0 500 " <br /> Diisopropyl ether ND 1 00 <br /> Ethyl tert-butyl ether ND 100 <br /> Methyl tert-butyl ether ND 0 500 " <br /> tent-Amyl Methyl Ether ND 100 " <br /> tert-Butyl Alcohol ND 500 " <br /> Surrogate 12-DCA-d4 22 7 200 114 73-137 ' <br /> Surrogate Toluene-d8 209 200 104 75-124 <br /> LCS(1J09039-BS1) _ <br /> Diisopropyl ether 940 1 00 ugll 100 940 75-125 �S <br /> Methyl tert-butyl ether 109 0 500 100 109 75-125 <br /> tert-Butyl Alcohol 538 Soo 500 108 75425 <br /> Surrogate 12-DCA-d4 234 200 117 73-137 <br /> Surrogate Toluene-d8 210 200 105 75-1.24 <br /> LCS Dup(1J09039-BSD1) <br /> Diisopropyl ether 959 100 ug/l 100 959 75-125 200 25 <br /> Methyl tert-butyl ether 11 5 0 500 100 115 75-125 536 25 <br /> tert-Butyl Alcohol 642 500 500 128 75-125 1716 25 Q-01 <br /> Surrogate 1 2-DCA-d4 235 200 118 73-137 <br /> Surrogate Toluene-dS 206 200 103 75-124 <br /> Matrix Spike(lJ09039-MS1) Source BlJO040-05 <br /> Dasopropyl ether 860 100 ug/l 100 ND 860 60-140 <br /> Methyl tent-butyl ether 885 0 500 100 ND 885 60-140 <br /> tert-Butyl Alcohol 443 500 500 ND 886 60-140 <br /> Surrogate 12-DCA-d4 220 200 110 73-137 <br /> Surrogate Toluene-d8 205 200 102 75-124 <br /> North ree Analytical-Bothell The results in this report apply to the samples analyzed in accordance with the chain <br /> custody document 71is analytical report must be reproduced in its entirety <br /> North Creek Analytical,Inc Page 13 of 16 <br /> Kirk Gendron,Project Manager Environmental Laboratory Network <br />