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QSequoia <br />Analytical <br />404 N Wlget Lane <br />Walnut Creek CA 94598 <br />(925) 988-9600 <br />FAX (925) 988-9673 <br />www sequoWabs corn <br />Gettler Ryan, Inc -Dublin Project Chevron <br />6747 Sierra Court Suite J Project Number Chevron 4 9-5775 Reported <br />Dublin CA 94568 Project Manager Scott Polston 25 -Jul -00 10 44 <br />Total Purgeable Hydrocarbons (C6 -C12) and BTEX by DHS LUFT <br />Sequoia Analytical - Walnut Creek <br />Reporting <br />lnalyte Result Limit Units Dilution Batch Prepared Analyzed Method Note <br />Eff (A'0070804)1) Water Sampled 06 -Jul -00 1130 Received 06 -Jul -00 13 45 P-02 <br />Purgeable Hydrocarbons 170 <br />50 ug/1 1 0007003 07 -Jul -00 07 -Jut 00 DHS LUFT <br />Benzene ND <br />050 " <br />Toluene 15 <br />050 <br />Ethylbenzene ND <br />050 " <br />Xylenes (total) 61 <br />050 " <br />Surrogate a a,a-Tnfluorotoluene <br />953% 70-130 <br />MP -2 (W007080-02) Water Sampled 06 -Jul -00 1138 <br />Received 06,1ul-00 13 45 P-02 <br />Purgeable Hydrocarbons 55 <br />50 ug/l 1 0607003 07 -Jul -00 07 -Jul 00 DHS LUFT <br />Benzene ND <br />0 50 " <br />Toluene 2 0 <br />0 50 " <br />Ethylbenzene ND <br />0 50 <br />Xylenes (total) 1 1 <br />050 " <br />trrogate a a a-Tnfluorotoluene <br />940% 70-130 <br />MP -1 (W007080-03) Water Sampled 06 -Jul -00 1136 <br />Received 06 -Jul -00 13 45 <br />Purgeable Hydrocarbons ND <br />50 ugll 1 0007003 07 -Jul -00 07 -Jul -00 DHS LUFT <br />Benzene ND <br />050 " <br />Toluene 19 <br />050 <br />Ethylbenzene ND <br />050 <br />Xylenes (total) ND <br />050 <br />Surrogate a a a-Tnfluorotoluene <br />104% 70-130 oo <br />lnf (W007080-04) Water Sampled 06Jul-0011 39 Received 06Jul-0013 45 P-04 <br />Purgeable Hydrocarbons 40000 <br />5000 ug/1 100 0007003 07 -Jul -00 07 Jul -00 DHS LUFT <br />Benzene 7300 <br />50 " <br />Toluene 210 <br />50 <br />Ethylbenzene 270 <br />50 " <br />Xylenes (total) 230 <br />50 " <br />Surrogate a a a-Tnfluorotoluene <br />103% 70-130 <br />equoia Analytical - Walnut Creek The results to this report apply to the samples analyzed in accordance with the chain of <br />cusiody document This analytical report must he reproduced to its entirety <br />Page 2 of 25 <br />