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819 Striker Avenue Suite 8 <br /> Sequoia Sacramento C95834 <br /> (9l 6)922 I-9600 <br /> FAX(91 C>)97 1-O 100 <br /> Analytical www sequwalabs com <br /> 1� <br /> Gettler-Ryan-Rancho Cordova Project Unocal 0187, Stockton CA Sampled 1113100 to l 1/6100 <br /> 3164 Gold Camp Dr Ste 240 Project Number N/A Received 11/7/00 <br /> Rancho Cordova CA 95670 Project Manager David Herzog Reported 11/16/00 <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 /> U-21-31' (continued) S011119-10 Sod <br /> Benzene 0110173 11/10/00 11/10/00 000500 ND mg/kg <br /> Toluene 000500 ND " <br /> Ethylbenzene 000500 ND " <br /> Xylenes(total) 000500 ND " <br /> Methyl tert-butyl ether 00500 ND _ <br /> Surrogate a a a-Trifluorotoluene 600-140 995 % <br /> U-21-41 5' 5011119-11 Soil <br /> Purgeable Hydrocarbons 0110173 11/10/00 11/10/00 100 ND mg/kg <br /> Benzene 000500 ND " <br /> Toluene 000500 ND " <br /> Ethylbenzene 000500 ND " <br /> Xylenes(total) 000500 ND " <br /> thyl tert-butyl ether 00500 ND " <br /> rrogate a a a-Trifluorotoluene 600-140 107 % <br /> U-21-51 5' S011119-12 Soil <br /> Purgeable Hydrocarbons 0110173 11/10/00 11/10/00 100 149 mg/kg i <br /> Benzene 000500 ND " <br /> Toluene 000500 ND " <br /> Ethylbenzene 000500 000546 " <br /> Xylenes(total) 000500 00110 " <br /> Methyl te_rt_-butyl ether 00500 ND <br /> Surrogate a a a-Trafluorotoluene 600-140 108 % <br /> i <br /> U-21-61 5' S011119-13 Sod <br /> Purgeable Hydrocarbons 0110173 11/10/00 11/10/00 1 00 ND mg/kg <br /> Benzene 000500 ND " <br /> Toluene 000500 ND " <br /> Ethylbenzene 000500 ND " <br /> Xylenes(total) 000500 ND " <br /> Methyl tert-butyl ether 00500 ND " <br /> Surrogate a a a-Trifluorotoluene 600-140 113 % <br /> U-21-71 5' 5011119-14 Soil <br /> Purgeable Hydrocarbons 0110173 11/10/00 11/10/00 1 00 ND mg/kg <br /> Benzene 000500 ND " <br /> Toluene 000500 ND " <br /> Ethylbenzene 000500 ND " <br /> Xvlenes(total) 000500 ND " <br /> �thyl tent-butyl ether 00500 ND " <br /> Sequoia Analytical-Sacramento *Refer to end ofreport jar text of notes and definitions <br /> Page 6 of 15 <br />