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■ Sequoia /SSI ialRoad <br />■ San CarlosrlosCA 94070 <br /> (650)232-9600 <br /> Analytical FAX(650)232 9612 <br /> www sequoialabs corn <br /> JGc11ler-RYan/GeoStrateg1es(J) Project Unoca](4) <br /> 7 Sierra Court,Suite J Project Number Former Unocal#5098&Montgmery Ward Reported <br /> lin CA,94568 Project Manager Deanna Harding 03/26/02 12 44 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - San Carlos <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> 7W-14(L203015-16)Water Sampled 03/04/02 09 02 Received 03/05/02 18 25 <br /> tyrene ND 20 uo 1 2030017 03/08/02 03108/02 EPA 8260E <br /> 1,1,1,2-Tetrachloroethane ND 20 <br /> 1,2,2-Tetrachloroethane ND 20 " <br /> etrachloroethene ND 20 <br /> oluene ND 20 <br /> 1,2,3-Tnchlorobenzene ND 20 <br /> 112,4-Trichlorobenzene ND 20 <br /> ,1,1-Tnchloroethane ND 20 " <br /> 1,1,2-Trichloroethane ND 20 <br /> 1"chlorofluoromethane <br /> chloroethene ND 20 <br /> ND 50 " <br /> 12,3-Trichloropropane ND 20 <br /> J2,4-Trimethylbenzene ND 20 " <br /> ..:3,5-Trimetbylbenzene ND 20 " <br /> inyl chloride ND 20 " <br /> Total Xylenes ND 20 " <br /> ate 12-Dichloroethane-d4 117 0o 63-118 <br /> gale Toluene-d8 979 % 88-110 <br /> Surrogate 4-BFB 100% 86-115 <br /> EW-14A (L203015-17)Water Sampled 03/04/02 09 10 Received 03/05/02 18 25 <br /> enzene ND 20 ug/1 1 2030017 03/08/02 03/08/02 EPA 8260E <br /> Bromobenzene ND 20 <br /> omochloromethane ND 2 0 <br /> Ir0 <br /> omodichloromethane ND 2 0 " <br /> Bromoform ND 20 <br /> liaromomethane ND 5 0 <br /> Butylbenzene ND 2 0 " <br /> c-Butylbenzene ND 20 <br /> Tert-butylbenzene ND 20 <br /> grbon tetrachloride ND 2 0 " 11 <br /> lorobenzene ND 20 <br /> Chloroethane ND 5 0 <br /> I0TOfonn ND 20 " " • <br /> loromethane Nin S n <br /> -Chlorotoluene ND 20 <br /> 4-Chlorotoluene ND 20 <br /> Ibromochloromethane ND 20 <br /> -Dibromoethane ND 20 <br /> Dibromomethane ND 20 <br /> buo,upia Analytical - San Carlos The i esults in this report apply to the samples analyzed to accordance with the chain of <br /> cus¢ody document This analytical report must be reproduced in its entirety <br /> Page 38 of 91 <br />