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���� <br /> sequoia - J Chesapeake Drive Redwood City, CP: 53 (650) 364-9600 FAX (650) 364-9233 <br /> PV�\�� 404 N. Wiget Lane Walnut Creek, CA 94098 (925) 988-9600 FAX (925) 988-9673 <br /> 819 Striker Avenue, Suite 8 Sacramento, CA 95834 (916) 921 -9600 FAX (916) 921 -0100 <br /> (//� <br /> i Analytical 1455 McDowell Blvd. North, Ste. D Petaluma, CA 94954 (707) 792- 1865 FAX (707) 792-0342 <br /> AW1551 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-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 A-50' 5905112-01 5411 <br /> Purgeable Hydrocarbons 9050133 5/12/99 5/13/99 200 3040 mg/kg I ,D <br /> Benzene of It It 1 .00 47.5 " D <br /> Toluene " " It1 .00 135 1D <br /> Ethylbenzene IfI It1 .00 57. 1 " D <br /> Xylenes (total) itIt1 .00 213 it D _ <br /> Methyl tert-butyl ether IfIt10.0 ND IF D <br /> Surrogate: a,a,a-Triuorotoluene If If 60. 0-140 108 % <br /> UH-IA-60' 5905112-03 Soil <br /> Purgeable Hydrocarbons 9050111 5/11 /99 5/11 /99 1 .00 5.45 mg/kg I <br /> Benzene " " It 0.00500 0. 247 " <br /> Toluene If " It 0.00500 0.672 it <br /> Ethylbenzene It " 0.00500 0.174 It <br /> Xylenes (total) If It 0.00500 0.701 to <br /> Methyl tert-butyl ether It " 0,0500 ND of <br /> Surrogate: fa,a,a-Trifluorotoluene Ifif to 60. 0-140 95.5 % <br /> BH-IA-65' 5905112-04 591 <br /> Purgeable Hydrocarbons 9050111 5/11 /99 5/11/99 1 . 00 ND mg/kg <br /> Benzene " It It 0.00500 0.0116 " <br /> Toluene ofIt to 0.00500 0.0474 It <br /> Ethylbenzene " If „ 0.00500 0.0153 to <br /> Xylenes (total) It " 0.00500 0.649 Is <br /> Methyl tert-butyl ether It it 0.0500 ND If <br /> Surrogate.' a,qa- Triiluorotoluene of if 60.0-140 90. 0 % <br /> UH-2-10' S905112-06 Snll <br /> Purgeable Hydrocarbons 9050131 5/11 /99 5/11 /99 50.0 1120 mg/kg 25D <br /> Benzene " It " 0.250 ND " D <br /> Toluene " to " 0.250 0.694 IF D <br /> Ethylbenzene of It " 0.250 9.90 " D <br /> Xylenes (total) IF " It 0.250 76.9 " D <br /> Methyl tert-butyl ether of It " 2.50 ND to D <br /> Surrogate: a, a, a- Tris lumratoluene IFtoit 60. 0- 140 90. 0 % <br /> BH�2-20' 5905112-08 Still <br /> Purgeable Hydrocarbons 9050131 5/11 /99 5/ 11 /99 50.0 1330 mg/kg 33D <br /> Benzene " " " 0.250 ND to D <br /> Toluene " It 0.250 25.0 to D <br /> Ethylbenzene " " 0.250 24.9 " D <br /> Xylenes (total) " to 0.250 131 to D <br /> I <br /> Sequoia Analytical - Sacramento *Refer to end of report for test of notes and definitions. <br /> I <br /> Sandra R. Hanson, Client Services Representative Page 3 of 15 <br />