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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> %0- Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> 161 <br /> -77 <br /> 31aine Tech Services Client Proj IDµ Shell Stockton/970708-Fl Sampled 07/08/97 <br /> 1680 Rogers Avenue Sample Descnpt MW-2 Received 07/10/97 <br /> San Jose, CA 95112 Matrix LIQUID 1` <br /> Analysis Method 8015Mod/8020 Analyzed 07/18/97 <br /> Attention Fran Thie _ _ _ _ Lab Number 9797594-01_ _ Reported_ 07123197 <br /> C Batch Number GC- 718976TEX03A <br /> strument ID GCHP03 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> 4nalyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 ... 150 <br /> Methyll t-Butyl Ether . .. .. . • 25 •• --- -- 20 <br /> 3enzene - - -- .. .. 050 ... 32 <br /> toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Kylenes (Total) <br /> 050 <br /> chromatogram Pattern .. .. C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> rorotoluene 70 130 121 <br /> nalytes reported as N D were not present above the stated limit of detection <br /> iEQUOIA ALYTICAL - ELAP #1210 <br />)egg enner <br />)roject Manager Page <br />