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Chesapeake Drive Redwood Gk, CA , 3 (650) 364-9600 FAX (650) 364-9673 <br /> N. <br /> y , Sequoia »04 N W ggt Lane Walnut Creek, CA (925) 986-9600 FAX (925) 988-9673 <br /> 1 819 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 /> [Rancho <br /> ettler-Ryan - Sac Project: Chevron 9-3232, Stockton, CA Sampled: 4/26/99 <br /> 64 Gold Camp Dr., Ste. 240 Project Number: 346463.04 Received: 4/27/99 <br /> Cordova, CA 95670 Project Manager: Rick Fears Reported: 5/12/99 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical - Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result Units Notes* <br /> BH-1-15' S904385-03 so <br /> Purgeable Hydrocarbons 9050044 5/4/99 5/4/99 1000 8560 mg/kg 12D <br /> Benzene It " If5 .00 ND " D <br /> Toluene It " 115 .00 158 " D <br /> Ethylbenzene It " 115 .00 180 " D <br /> Xylenes (total) " " 115 .00 758 " D <br /> Methyl tert-butyl ether to toit50.0 ND " D <br /> Surrogate: a,a,a-Triuorotoluene 60. 0-140 96. 0 % <br /> BH-1 -30' 5904385-06 SDA <br /> Purgeable Hydrocarbons 9050044 5/4/99 5/4/99 1000 6780 mg/kg LD <br /> Benzene It " If5 .00 31.1 " D <br /> Toluene ItIt 5.00 194 1D <br /> Ethylbenzene It It 5.00 90.1 " D <br /> Xylenes (total) If toIt5.00 405 It D <br /> Methyl tert-butyl ether to to1150.0 ND It D <br /> Surrogate.' a,a, a-Trivarotoluene it " of 60.0-140 102 % <br /> BH-1 -45' S904385-09 Soil <br /> Purgeable Hydrocarbons 9050044 5/4/99 5/4/99 250 1500 mg/kg I ,D <br /> Benzene " It1 . 25 5.42 " D <br /> Toluene " If1 .25 29.2 " D <br /> Ethylbenzene 11 of 1 . 25 19.1 " D <br /> Xylenes (total) " of1 . 25 84.2 " D <br /> Methyl ten-butyl ether " 1112. 5 ND " D <br /> Surrogate. a,a,a-Tris luorotolueue 60.0-140 83. 5 % <br /> Sequoia Analytical - Sacramento ` *Refer to end of report far text ofnotes and definitions. <br /> Sandra R. Hanson, Client Services Representative Page 2 of 6 <br />