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400 Chesapeake Drive Redwood Ci (650) 364-9600 FAX (650) 3649233 <br /> Sequoia 404 N. Wiget Lane Walnut Creek,k, CAA 94598598 (925) 988-9600 FAX (925) 988-9673 <br /> 819 Striker Avenue, Suite 8 Sacramento, CA 95834 (916) 921 -9600 FAX (916) 921 -0100 <br /> Analytical 1455 McDowell Blvd. North, Ste. D Petaluma, CA 94954 (707) 792- 1865 FAX (707) 792-0342 <br /> 1551 Industrial Road San Carlos, CA 94070-4111 (650) 232-9600 FAX (650) 232-9612 <br /> Gettler-Ryan Dublin Client Protect ID . Unocal SS#8671 , Stockton Sampled : May 14, 1999 .: <br /> 6747 Sierra Court, Suite J Sample Descript: Water, MW-4 Received : May 14, 1999;:;: <br /> Dublin, CA 94568 Analysis Method : EPA 8260 Analyzed : May 27, 1999> <br /> Attention: Deanna Harding Lab Number: 905-1321 Reported : Jun 4, 1999 :.; <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> pg/L 1/g/L <br /> Ethanol,. . . .. .. . .. . . . . .. . . . . . ..... . . . . .. .. .. . .. .... . 500 . . . . . .. . . .... . . .. . . .. .. . . .. . . .. . .. . . . N. D. . <br /> t-Butanol . . . . . .. . .. . . . . . . ... . . . .. . . . . ... .. . . . .. ... ... . . . . . .. . .. . .. . ... . . . . ... . ... .. . . 100 . ... . . . . . .. .. . . . . . . .. .. . . . . .. . . . .. . . . N. D. <br /> U[ Met y t- uty t er .... . . ........ ......... .. . ........... . 2. 0 ... .. ..... . ............. . .... ... ..... 3.7 <br /> Di-Isopropyl ter .. . . . .. . . . .. . . .... . . .0 . ..... . . . . . I . . . ... . .. .. . . . . 2. 0 . . . . ... . . ... . . ... . . .. .. . .1. . .. . ... . .. <br /> Ethyl t-Butyl Ether (ETBE) . .. .. . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 . 0 . . ... .. . . . . . . . . . . . .. . . . . .. . . . . N . D, <br /> t-Amyl Methyl Ether (TAME) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. 0 . . . . . . . . . . . .. . . . . I . . . . . . . . . . . . . . . N . D. <br /> Surrogates Control Limit % % Recovery <br /> Dibromofl uoromethane. . . . . . . . .... . . . . . . . . .. . . .. . .. . .. I . .. . . . . . I . . . . . . . . . . 1 50 150. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . 97 <br /> 1 , 2-D ichl oroethane-d4. . . .. . . . ... . . . . . . . . ... . .. . . . . . . . . . . . . .. . . . . . . . . . . . . . . . 50 150. . . . .. . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . 102 <br /> Analytes reported as N.D. were not present above the stated limit of detection. <br /> SEQUOIA ANALYTICAL, 1271 <br /> �L <br /> ulianne Fegley <br /> Project Manager <br /> 9051317.GET < 5 > <br /> ,�k <br />