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a - <br /> Sequoia 680 Chesapeake Drive Redwood Qty CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> Analytical 819 Straker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> G�tter Ryan Geostrate les `"" _, <br /> / g Client Prol ID- <br /> I Unocal SS#55886 "- ` —' <br /> 6747 Sierra Court Surte J Sample Descnpt MW-6D - Sampled 03/25/98 - <br /> y Dublin, CA 94568 Matrix LIQUID Received 03/25/98 9 <br /> Attention Deanna Harding Analysis Method EPA 8260 <br /> -_ - - - - -- 9 - __µ_ "_-Lab Number 9803G82-09 Analyzed 04/01/98 <br /> - Reported 04/08/98_-_? <br /> OC Batch�Number MS033198MTBEF3A- __:." <br /> Instrument ID F3 -" ---- �--_ <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit <br /> utio Sample Results <br /> Ethanol ug/L <br /> t-Butanol 5000 N D <br /> Methyl t-Butyl Ether (MTBE) 1000 N D <br /> D1-Isopropyl Ether (DIPE) 20 1400 <br /> Ethyl t-Butyl Ether (ETBE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates 20 N D <br /> 1,2-Dichloroethane-d4 Control Limits % % Recovery <br /> 76 114 100 <br /> zlytes reported as N D were not present above the stated 4mit of detection <br /> ;QUOTA AN LYTiCAL - ELAP #1210 <br /> ory <br /> )Ie anager <br /> Page 23 <br />