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Sequoia 6$0 Chesapeake Drive <br /> 404 N Wrget Lane Redwood Gty CA 94063 (41 S) 364 9600 FAX(415) 364 9233 <br /> Analytical 819 Str&k ,-Avenue,Su Walnut Creek,CA 94398 <br /> ,te 8 Sacramento CA 95834 (5i0) 988 9600 FAX(5 10)988 9673 <br /> (91 sj 921 9604 FAX(916)921 d 100 <br /> IRDS Services <br /> 2401 Stanwell er, Ste 30o Client Project ib Unocal 40187 437 E <br /> Concord, CA 944520 Matrix Descrlpt Water Miner Ave,Stockton Sampled Aug 4, 1957 <br /> Attention Jarrel Crider Analysis Method EPA 5030/8015 Mod/8020 Received <br /> First Sample# Aug 5, 1997 <br /> 7fl8-0153 <br /> Reported Aug 19, 19,97 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS - <br /> Sample v►►�#h <br /> SBTEX DISTINCTION <br /> Number ample purSeable <br /> Description Hydrocarbons Benzene Ethyl Total <br /> pg/L u9/L Toluene Benzene Xylenes <br /> !19/L <br /> 708-0153 U-i <br /> 380* µg/L Ing/L <br /> 0 77 <br /> ND NO NO <br /> 70$-a154 U-z <br /> 78* 0 88 <br /> ND NO NO <br /> 708-0155 U-3 <br /> 810 3B <br /> 21 fi7 15 <br /> 708-0156 U_ <br /> NO NO ND <br /> NO ND <br /> 708-0157 U-5 <br /> NO NO ND <br /> ND NO <br /> 708-0158 u-6 <br /> ND NO ND <br /> NO ND J <br /> 708-0159 U-7f <br /> ND ND <br /> ND ND NO <br /> 708-0160 U_g <br /> ND NO ND <br /> ND ND <br /> * Hydrocarbons detected did not appear to be gasoline <br /> e ec +on +m+ts <br /> D 0 D <br /> Total Forgeable Petroleum Pet9 <br /> Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported t <br /> ND were not present above the stated Frmrt of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> nature on File <br /> Van 8 Kemp <br />)rolect Manager <br /> Page 1 of 2 <br /> 7080153 MPD <I 7 <br />