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-4 )r , Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> it404 N Wtget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> Analytical 819 Stnker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921-0100 <br /> Blaine'tech Services - Client Prol ID Chevron 9-2033%970821-F3- w- _ Sampled 08/21/97- <br /> 1680 Rogers Avenue Sample Descript MW-3 Received 08/25/97 - <br /> San Jose, CA 95112 Matrix LIQUID _ <br /> - Analysis Method 8015Mod/8020 Analyzed 08/28/97 ,- <br /> Attention Fran Th1e Lab Number 9708D46-03 Reported 09jD9j97 - <br /> QC Batch Number GC,082897BTEX03A - - - - - - - - "- <br /> Instrument ID GCHP03 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 5000 7100 <br /> Methyl t-Butyl Ether 50 180 <br /> Benzene <br /> Toluene 50 18Ba <br /> Ethyl Benzene 50 150 <br /> Xylenes (Total) 50 250 <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits % % Recovery <br /> Tnfluorotoluene 70 130 115 <br /> i <br /> Analytes reported as were not present above the stated Itmit of detection <br /> SEQU A LYTICAL - ELAP #1210 <br /> Peggy Penner <br /> Protect Manager 7 <br /> Page 8 <br />