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Striker Avenue, Suite 8 <br /> Sequoia 819 Sacramento,CA 95834 <br /> (9l 6)921-9600 <br /> Analytical FAX(916)921-0100 <br /> Gettler-Ryan-Rancho Cordova Project Unocal 0123,Tracy,CA Sampled 1/12100 <br /> 3164 Gold Camp Dr,Ste 240 Project Number NIA Received 1112100 <br /> Rancho Cordova,CA 95670 Project Manager David Herzog Reported 1119,27100 <br /> Volatile Organic Compounds by EPA Method 8010B/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Matrix Spike(continued) 0010170-MS1 SOO1115-01 <br /> 1,l-Dichloroethane 1119100 100 ND 847 ug/kg 600-140 847 <br /> Trichloroethene 1100 ND 990 600-140 990 <br /> Surrogate Bromochloromethane 00100 104 600-140 104 <br /> Surrogate 1-Chlorotoluene 11100 943 600-140 943 <br /> Matrix Spike Dup 0010170-MSD1 SOO1115-01 <br /> Chlorobenzene 1119100 200 ND 18 8 ug/kg 600-140 940 250 518 <br /> I,1-Dichloroethane It 100 ND 848 600-140 848 250 0 118 <br /> Trichloroethene 100 ND 972 600-140 972 250 183 <br /> Surrogate Bromochloromethane 100 968 600-140 968 <br /> Surrogate 1-Chlorotoluene 100 906 600-140 906 <br /> Bateh 0010171 Date Prepared 1118100 Extraction Method EPA 50308 PIT <br /> JWAFik 0010171-BLK1 <br /> Wadichloromethane 1118100 ND ug/l 0 500 <br /> romoform ND 0 500 <br /> Bromomethane ND 100 <br /> Carbon tetrachloride ND 0 500 <br /> Chlorobenzene ND 0 500 <br /> Chloroethane ND 100 <br /> Chloroform ND 0 500 <br /> Chloromethane ND " 100 <br /> Dibromochloromethane ND 0 500 <br /> 1,3-Dichlorobenzene ND 0 500 <br /> 1,4-Dichlorobenzene ND 0 500 <br /> 1,2-Dichlorobenzene ND 0 500 <br /> 1,1-D ichloroethane ND 0 500 <br /> 1,2-Dichloroethane ND 0 500 <br /> I,1-Dichloroethene ND 0 500 <br /> cis-1,2-Dichloroethene ND 0 500 <br /> trans-1,2-Dichloroethene ND 0 500 <br /> 1,2-Dichloropropane ND 0 500 <br /> cis-l,3-Dichloropropene ND 0 500 <br /> trans-1,3-Dichloropropene ND 0 500 <br /> Methylene chloride ND 500 <br /> 1,1,2,2-Tetrachloroethane ND 0500 <br /> Tetrachloroethene ND 0 500 <br /> I,I,1-Trichloroethane ND 0 500 <br /> 1,1,2-Trichloroethane ND 0 500 <br /> Trichloroethene ND 0 500 <br /> chlorofluoromethane ND 0 500 <br /> equoia Analytical- Sacramento *Refer to end of report for text of notes and definitions <br /> Page 12 of 17 <br />