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Sequoia819 Striker Avenue Suite a <br /> n Sacramento,CA 95834 „ <br /> Analytical - (916)921- <br /> FAX(916)921-010100 <br /> 00 <br /> u , <br /> IT Corporation-Sacramento Project Parkinson ARCO Sampled ' I/7100 <br /> 1433N Market Blvd,Ste 1 Project Number NIA Received 1110/00 ' <br /> Sacramento;CA 95834 Project Manager Kathleen Waldo Reported 1111,24/00 <br /> Volatile Oxygenate Compounds by EPA Method 8260A/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike, Sample QC Reporting Lima Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits "/o - Limit % Notes* <br /> Hatch 0010139 DatePrepared 1/17100 Extraction Method EPA 50308 1Me0Hl <br /> Blank 0010139-BLKI <br /> Tert-butyl alcohol _ 1/17/00 ND mg/kg 100 <br /> Methyl tert-butyl ether ND 0 100 <br /> Di-isopropyl ether ". ND 0.100 <br /> Ethyl tert-butyl ether ND " 0.100 <br /> Tert-amyl methyl ether ND 0.100 <br /> Surrogate 1,2-DCA-d4 230 - 315 " 600-140 116 <br /> LCS - 0010139-BSI - _ <br /> Methyl tert-butyl ether 1117100 2 50 238 mg/kg 700-130 952 <br /> Surrogate 1,2-DCA44 - 250 317 600-140 127 <br /> Matrix Spike 00I0139-M5I 5001068-32 y <br /> Methyl tert-butyl ether 1/17/00 2 50 ND 240 m 60 0-140 96 <br /> mg/kg 0 <br /> -Surrogate--1,2-DCA-d4 150 -- -- ^- ---- 3 06- ` " ` ` `r 60 0-140— 122 <br /> Matrix Spike Dup 0010139-M_SDIS001068-32 <br /> 94 8 250 1.26 - -- <br /> Surrogate 1,1-DCA-d4 2 50 3 04 60 0-140 122 <br /> Batch- 0010167 Date Prepared 1/19100 Extraction Method EPA 5030B IMeOM <br /> Blank - - 0010167-BLK - <br /> Tert-butyl alcohol 1/19100 ND mg/kg 100 <br /> Methyl tert-butyl ether ND 0.100 <br /> Di-isopropyl ether ." ND 0.100 <br /> Ethyl tert-butyl ether ND 0 100 <br /> Tert-amyl methyl ether ND 0 100 <br /> Surrogate 1,2-DCA-d4 " 250 312 600-140 125 <br /> LCS - 0010167-BSI <br /> Methyl ten-butyl ether 1119/00 250 238 m 700-130 952 <br /> Surrogate 1,2-DCA-d4 a 250 318 600-140 127 <br /> _Matrix Spike 0010167-MSI 5001072-11 <br /> Methyl ten-butyl ether 1/19/00 2 50 _ 233 445 mg/kg 600-140 - 84.8 - - <br /> Surrogate 1,2-DC4-d4 " 2.50 292 600-140 117 _ <br /> Matrix Spike Du,.,p 0010167-MSDI 5001072-I1 <br /> Methyl tert-butyl ether 1/19/00 250 233 441 Wmg/kg 600-140 83.2 25 0 190 0 <br /> Sequoia Analytical-Sacramento *Refer to end of reportfor test of notes and definitions <br /> Page 17 of 20 <br /> C� <br />