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E :esapeake Drive Redwood City, CA 94 ! (650) 364-9600 FAX (650) 364-9233 <br /> Sequoia 4tr- ii. Wiget Lane Walnut Creek, CA 945:_ (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 94070-411 1 (650) 232-9600 FAX (650) 232-9612 <br /> Gettler-Ryan - Sac Project: Chevron 9-3232, Stockton, CA Sampled: 5/5/99 to 5/6/99 <br /> 3164 Gold Camp Dr., Ste. 240 Project Number: 346463.04 Received: 5/7/99 <br /> Rancho Cordova, CA 95670 Project Manager: Rick Fears Reported: 5/ 14, 19/99 <br /> Total Purgeable Hydrocarbons (C6-02), 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-3-50' (continued) 5905112-26 S9.il <br /> Surrogate. a,a,a-Triluorotaluene 9050133 5112199 5113199 60. 0-140 106 <br /> BH-3-60' 5905112-28 $2 <br /> Purgeable Hydrocarbons 9050146 5/ 12/99 5/12/99 1 .00 5.01 mg/kg I <br /> Benzene " Is „ 0.00500 0. 112 IF <br /> Toluene IF toit0.00500 0.390 " <br /> Ethylbenzene IF " " 0 .00500 0. 165 IN <br /> Xylenes (total) It 0.00500 0,726 " <br /> Methyl tert-butyl ether " IN ON 0.0500 ND " <br /> Surrogate: a,a,a-TriJluorotoluene " IF if 60.0-140 93. 5 <br /> BH-3-70' S905112-30 SRU <br /> Purgeable Hydrocarbons 9050133 5/12/99 5/13/99 2.00 5,83 mg/kg LD <br /> Benzene " IN to 0.0100 0.188 D <br /> Toluene " Itif0.0100 0.541 D <br /> Ethylbenzene " to0.0100 0.212 IF D <br /> Xylenes (total) It " 0.0100 0.896 IN D <br /> Methyl tert-butyl ether he 0. 100 ND " D <br /> Surrogate a,a,a-Triluorotoluene It " to 60. 0-140 74. 5 <br /> BH-4-10' 5905112-32 Sal <br /> Purgeable Hydrocarbons 9050131 5/ 11 /99 5/ 11/99 1 .00 ND mg/kg <br /> Benzene to " it0.00500 ND " <br /> Toluene to orIt0.00500 ND It <br /> Ethylbenzene IN " 110.00500 ND It <br /> Xylenes (total) It it110.00500 ND It <br /> Methyl tert-butyl ether " itIt0.0500 ND to <br /> Surrogate.' a,a,a-Trifluorotoluene of if to 60. 0-140 90.5 % <br /> BH-4_20' S905112-34 S", <br /> Purgeable Hydrocarbons 9050111 5/ 11/99 5/ 11 /99 1 .00 ND mg/kg <br /> Benzene " Itto0.00500 ND It <br /> Toluene 11Is110. 00500 ND " <br /> Ethylbenzene 11IFto0.00500 ND " <br /> Xylenes (total) " to No 0.00500 ND " <br /> Methyl tert-butyl ether 0.0500 ND IF <br /> Surrogate: a,a,a-Tris luorotoluene IF60. 0-140 89. 0 <br /> BH4-30' S905112-36 SDE <br /> Purgeable Hydrocarbons 9050111 5/ 11 /99 5/ 11/99 1 .00 ND mg/kg <br /> Benzene It IF „ 0.00500 ND IN j <br /> Sequoia /am <br /> Analytical <br /> - SacramenttoL *Refer to end of report for text of notes and definitions. <br /> i -rJ hrl /L Z(�f�1 1YI <br /> Sandra R. Hanson, Client Services Representative Page 6 of 15 <br /> Q9 <br />