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Ci) Sequoia 819 Striker Avenue Suite <br /> Sacramento CA 958_ra <br /> 1w Analytical (916) 921-96{ <br /> FAX(916) 92 { <br /> IT Corporation-Sacramento Project Parkinson ARCO Sampled 1/26/00 <br /> 1433 N Market Blvd,Ste 1 Project Number 880-040 ]A Received 1/27/00 <br /> Sacramento,CA 95834 Project Manager Kathleen Waldo Re pried 2/9100 <br /> Volatile Oxygenate Compounds by EPA Method 8260A/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed . Level Result Result Unm- Recov Limits % Luna % Notes <br /> Batch 0010285 Date Prepared 1/31100 Extraction Method EPA 5030D IMeOlU <br /> Blank 0010285-13LKI <br /> Tert-butyl alcohol 1/31/00 NDA mg/kg 10 0 <br /> Methyl tert-butyl ether ND 0 100 <br /> Di-isopropyl ether ND '1 0 100 <br /> Ethyl tert-butyl ether ND 0 100 <br /> Tert-amyl methyl ether - <br /> Ethanol ND 0 100 <br /> _' ND " 150 <br /> 1,2-Dichloroethane - " ND " <br /> Ethylene dibromide 0 100 <br /> ND 0100 <br /> Surrogate 1 1-DCA-d4 150 2 81 600-140 -112 <br /> LCS 001021 8� 5_�BS1 <br /> Methyl tert-butyl ether _ -1131/00 250 2 68 mg/kg 700-130 107 <br /> Surrogate 12-DCA-d4 250 - 273 600-140 109 <br /> __--0010285-MSI-- --5001287-08----- - _ —_ __.—_ <br /> Methyl tert-butyl ether I/31/00 250 Surrogate 12-DCA-d4 ND 2 34 mg/kg 60 0-140 936 <br /> 150 135 op60 0140-94 0 <br /> Matrrvx Spike Dap T 0010285-MSD1 5001287-08 <br /> Methyl tert-butyl ether 1131100 2 50 _ <br /> Surrogate 12-DCA-d4 -ND 2 43 mg/kg 60 0-140 972 250 377 <br /> 150 2 38 600-146 951 <br /> _ <br /> Sequoia Analytical-Sacramento 'Refer to end of report for text ofnotes and def�utons <br /> i f <br /> Page 14 of 16 <br />