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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 a <br /> 404 N Wiget Lane Walnut Creek CA 94598 (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 /> r <br /> Blaine Technical Services,Inc Project Shell Oil Co Sampled 1/26/99 <br /> 1680 Rogers Ave Project Number 141 N EI Dorado,Stockton/990126-S2 Received 2/2/99 <br /> San lose,CA 95112 Project Manager Fran Thie Reported 2/12/99 <br /> Volatile Organic Compounds by EPA Method 8010B/Quality Control <br /> Sequoia Analytical-Petaluma <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Lirruts % Limit % Notes* <br /> Blank(continued) 9020100-BLK3 <br /> Chlorobenzene 2/5/99 ND ug/l 0 500 <br /> Chloroethane ND 0 500 <br /> 2-Chloroethylvinyl ether ND Soo <br /> Chloroform ND 0 500 <br /> Chloromethane ND 0 500 <br /> Dibromochloromethane ND 0 500 <br /> 1,2-Dibromoethane(EDB) ND 0 500 <br /> 1,2-Dichlorobenzene ND 0 500 <br /> 1,3-Dichlorobenzene ND 0 500 <br /> 1,4-Dichlorobenzene ND 0 500 <br /> Dichlorodifluoromethane ND 0 500 <br /> I J-Dichloroethane ND 0 500 <br /> 1,2-Dichloroethane ND 0 500 <br /> I,1-Drchloroethene ND 0 500 <br /> cis-1,2-Dichloroethene ND 0 500 <br /> trans-1,2-Drchloroethene ND 0 500 <br /> I,2-Dichloropropane ND 0 500 <br /> cis-1,3-Dichloropropene ND 0 500 <br /> trans-1,3-Dichloropropene ND 0 500 <br />�FmGml 13 ND -.0500 <br /> Methylene chloride ND 0 500 <br /> 1,1,2,2-Tetrachloroethane ND 0 500 <br /> Tetrachloroethene ND 0 500 <br /> 1,1,2-Tnchloroethane ND 0 500 <br /> 1,1,1-Tnchloroethane ND 0 500 <br /> Tnchloroethane ND­ 0 500 <br /> Tnchlorofluoromethane ND 0 500 <br /> Vinyl chloride ND 0 500 <br /> Surrogate Bromochloromethane to 300 314 It <br /> 105 <br /> Surrogate 14-Dichlorohutane to 300 312 104 <br /> LCS 9020100-BSI <br /> Chlorobenzene 2/3/99 too 946 ug/l 946 <br /> l,l-Drchloroethene 100 994 994 <br /> Tnchloroethene 100 890 890 <br /> Surrogate Bromochloromethane 300 281 93 7 <br /> Surrogate 1,4-Dichlorobutane 300 285 950 <br /> LCS 9020100-BS2 <br /> Chlorobenzene 2/4/99 10 0 997 ug/l 997 <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and definity <br /> Page 8 of 10 <br />