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La E Mesa Drive Redwood Ci _.. (650) 364-9600 FAX (650) 3649233 <br /> sequoia 4t., ,J. Wiget Lane Walnut Creek, <br /> CAA 944 5. .. (925) 986-9600 FAX (925) 988-9673 <br /> 819 Striker Avenue, Suite 8 Sacramento, CA 95834 (916) 921 -9600 FAX (916) 921 -0100 <br /> I i)� Analytical 1455 McDowell Blvd. North, Ste. D Petaluma. CA 94954 (707) 792- 1865 FAX (707) 792-0342 <br /> �„ <br /> 1551 Industrial Road San Carlos. CA 94070-4111 (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 /> BH4-30' (continued) S905112-36 Sad <br /> Toluene 9050111 5/11/99 5/11 /99 0.00500 ND mg/kg <br /> Ethylbenzene of is IF 0.00500 ND " <br /> Xylenes (total) " " 0. 00500 ND <br /> Methyl tert-butyl ether it IFIt0.0500 ND <br /> Surrogate: a, a, a-Ti'iuorololuene of If IF 60. 0- 140 90. 5 <br /> BH-4-40' 5905112-38 soil <br /> Purgeable Hydrocarbons 9050111 5/11 /99 5/11/99 1 .00 ND mg/kg <br /> Benzene " It110.00500 ND " <br /> Toluene IF " „ 0.00500 ND IF <br /> Ethylbenzene " If110.00500 ND " <br /> Xylenes (total) it If 0.00500 ND " <br /> Methyl tert-butyl ether of itit0.0500 ND it <br /> Surrogate: a,a,a-Triuorololuene " " to 60. 0-140 90. 5 <br /> BH-4-50' 5905112-40 Soli <br /> Purgeable Hydrocarbons 9050133 5/ 12/99 5/ 13/99 20.0 164 mg/kg 39D <br /> Benzene " If to 0. 100 1 .65 If D <br /> Toluene to to of 0. 100 ND " D <br /> Ethylbenzene IIF „ 0. 100 4.22 to D <br /> Xylenes (total) " „ 0. 100 6.94 " D <br /> Methyl tert-butyl ether " „ 1 .00 ND " D <br /> Surrogate: a,a,a- Tri/luorotohtene 60. 0-IAO 97. 0 <br /> BH-4-60' S905112-42 Soil <br /> Purgeable Hydrocarbons 9050131 5/11/99 5/ 11 /99 1 .00 ND mg/kg <br /> Benzene " " 110. 00500 ND " <br /> Toluene to " 0.00500 0.00538 of <br /> Ethylbenzene " It 0.00500 ND " <br /> Xylenes (total) IF 0. 00500 0.0254 It <br /> Methyl tert-butyl ether go0.0500 ND If <br /> Surrogate: a,a, a-Triiluorotoluene " of 60. 0- 140 89. 5 <br /> BH-4-65' S905112-43 Soil <br /> Purgeable Hydrocarbons 9050131 5/ 11 /99 5/ 11 /99 1 .00 ND mg/kg <br /> Benzene " If110.00500 ND " <br /> Toluene it " It0.00500 ND to <br /> Ethylbenzene toof 0.00500 ND " <br /> Xylenes (total) It " If 0.00500 0.00896 " <br /> Methyl tert-butyl ether to No 0.0500 ND " <br /> Surrogate: a,a,a-Triiluorotoluene 60. 0- 140 90.5 <br /> Sequoia Analytical - Sacramento� *Refer to end ofreportfor text ofnotes and definitions. <br /> Sandra R. Hanson, Client Services Representative Page 7 of 15 <br />