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Sequoia 680 Chesapeake Dnvc Redwood Gty,CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wiget lane Walnut Geek,CA 94598 (510) 988-9600 FAX(5t0)988-9673 <br /> 11%07 Analytical 819 Sinker Avenue,Suite 8 Sacramento, CA 95834 (916) 921-%00 FAX(916)9211 0100 <br /> - -_-__ — _��_—,-rte:�.--�r--,--=.��-_- '�—��•�:�—•--,,��•_,..••.,,,-,—�..,.. -- -_ - _ ---r- <br /> G 1t er Ryan Geostrategles ii z �Cflent Prot-ID Unocal-SS#5886 Sarrtpled 03/25/98 _ <br /> 6747 Sierra Gourt Sude J Sample Descnpt MW-2 Received 03/25/98 <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 03/30/98 <br /> Attention Deanna Harding _ _ Lab Number_9803G82-03 - _ ___ Repoed _ <br /> QC-Batch Number MS032898MTBEH6A �- --^ -- ---zµ- `�-— <br /> Instrument ID H6 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> Ethanol 5000 N D <br /> t-Butanol 1000 N D <br /> Methyl t-Butyl Ether (MTBE) 20 1600 <br /> DI-Isopropyl Ether (DIPE) 20 N D <br /> Ethyl t-Butyl Ether(ETBE) 20 N D <br /> t-Amy] Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limits % % Recovery <br /> 1,2-Dlchloroethane-d4 76 114 90 <br /> • <br /> analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> ry <br /> 4rj ett Manager Page 5 <br /> .r. <br />