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` <br /> 1551 Industrial Road <br /> Sequoia sari Carlos, CA 94070-4111 <br /> 4 <br /> (650)232-9600 <br /> Analytical FAX(650)232-9612 <br /> • <br /> 3ettler-Ryan/Geostrategies(1) Project Unocal(1) Sampled 12/13/99 <br /> 5747 Sierra Court,Suite D Project Number Unocal SS#5098 Received 12/14/99 <br /> hiblin,CA 94568 Project Manger Scott Polston Reported 12/29/99 <br /> Volatile Orga uc Compounds by EPA Metliod 8010B/Quality Coati'ol <br /> Sequoia Analytical-San Carlos <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> knalyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch. 9120094 _Date Prepared- 12/20/99 Extraction Method- EPA 5030B (P/Tl <br /> Blank 9120094-BLK1 <br /> Creon 113 12/20/99 ND ug/l 1.00 <br /> 3romodichloromethane ND 0.500 <br /> 3romoform ND 0.500 <br /> 3romomethane ND 1.00 <br />�arbon tetrachloride ND to0.500 <br />-hlorobenzene ND 0 500 <br />-hloroethane ND 1.00 <br /> 1-Chloroethylvmyl ether ND 1.00 <br />;hloroform ND 0 500 <br /> chloromethane ND 100 <br /> 3ibromochloromethane ND 0 500 <br /> 1,3-Dichlorobenzene ND 0 500 <br /> 1,4lorobenzene ND 0 500 <br /> I,2 lorobenzene ND 0 500 <br /> 1,1-Dichloroethene to ND 0 500 <br /> 1,2-Dichloroethane ND 0 500 <br /> 1,1.-Dichloroethene ND 0500 <br />:is-1,2-Dichloroethene ND 0 500 <br /> Tans-1,2-Dichloroethene ND to0 500 <br /> ,2-Dichloropropane ND 0 500 <br /> is-1,3-Dichloropropene ND 0 500 <br /> rans-1,3-Dichloropropene ND 0.500 <br /> viethylene chlonde ND 500 <br /> 1,1,2,2-Tetrachloroethane ND 0 500 <br /> retrachloroethene ND 0 500 <br /> 1,1,1-Tnchloroethane 00ND 0.500 <br /> 1,1,2-Tnchloroethane 11ND 0.500 <br /> rnchloroethene ND to 0S00 <br /> rnchlorofluoromethane ND It 0.500 <br /> Vinyl chloride ND 0 500 <br /> Surrogate I-Chloro-2 fluorobenzene 100 891 700-130 891 <br /> Blank 9120094-BLK2 <br /> Freon 113 12/21/99 ND ug/l 100 <br /> Bromodichloromethane It ND to 0.500 <br /> Bromoform It ND itMOO <br /> Bromomethane ofND it 100 <br /> Carbon tetrachloride it ND It <br /> 0-500 <br /> Chlorobenzene ND 110.500 <br /> thane ND 0100 <br /> Sequoia Analytical-San Carlos 'Refer to end of report for text of now and definitions <br /> Page 26 of 31 <br />