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680 ,apeake Drive Redwood City, CA 9406, (650) 364-9600 FAX (650) 364-9233 <br /> Sequoia <br /> 404 N. Wiget lane Walnut Creek CA 94598 (925) 988-9600 FAX (925) 988-9673 <br /> Analytical 819 Striker Avenue. Suite 8 Sacramento, CA 95834 (916) 921 -9600 FAX (916) 921 -0100 <br /> 1455 McDowell Blvd. North, Ste. D Petaluma, CA 94954 (707) 792- 1865 FAX (707) 792-0342 <br /> Gettler Ryan - Dublin Client Project ID Chevron #9 3234 Stockton Sampled Mar 11 , 1999 <br /> 6747 Sierra Court, Suite J Sample Descrlpt: Water, TK-Water Received : Mar 11 , 1999:; <br /> Dublin, CA 94568 Analysis Method : EPA 8260 Analyzed: Mar 14, 1999::::: <br /> Attention Greg Gurss Lab Number 903-1104 Reported: Mar 16, 1999 <br /> OXYGENATED COMPOUNDS ( EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> Ng/L !/9/L <br /> Ethanol" " ". . , 500N . D, <br /> . . . . . .. . .. .. . . . . . . . . . . . . . . . .. . . . . . .. . <br /> t-Butanol . . . . . . . . .. .. . . . . . .. . . . . .. . . . . . . . .. . . .. . .. . ... . . . .. .. . .. . . .. . . . . . . .. . .... .. . . 100N . D , <br /> . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . .. . . <br /> Methylt-Butyl ter . .. . . . ....... . . .. . . . . ..... . ...... . . . . . 2.0 .... . . . . ... 6. 0 <br /> . .... .. . . ..... . . . . . ..... .. <br /> I- sopropy Ether . . . . . . . . .. . .. . . . . . . .. . . . . . . <br /> . . . .. . .. . . . . . :.. . . . . . 2. 0 <br /> Ethyl t-Butyl Ether (ETBE) . . . . . . .. . . . . . . . .. ..... .. . . . . ... . . ... . .. . .. . ... .. 2.0 N. D, <br /> t-Amyl Methyl Ether (TAME) , , .. . 2.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N . D. <br /> Surrogates Control Limit % % Recovery <br /> D ibromofl uoromethane. .. . . . . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . .. . . . ...... . .. . . . 50 150. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 <br /> 1 ,2-Dichloroethane-d4. .. . . . . .. :.... .. ...... . . .. . . . . . .. ....... . . .. . .... . . . . . 50 150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 <br /> Analytes reported as N. D. were not present above the stated limit of detection . <br /> SEQUOIA ANALYTICAL, # 1271 <br /> kL <br /> J'an'neleyey <br /> Project Manager <br /> 9031092.GET <21 > <br />