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FEB 10 1998 ""2 46PM NO 2113 F 12/15 <br /> Sequoia 690 Chesapeake Dnve Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> eD 404 N 'WiSct lane Walnut Creek CA 94398 (510) 968 9600 FAX(510)981-9673 <br /> fid Analytical 819 Striker Avenut $mote 8 Sacrarocnto CA 95834 (916) 921 9600 FAX(916)921 OM <br /> , gllnuugnu ftlgat --�=— -- - - MUUMUU,-_ __ nmatmunn - <br /> -R! <br /> ,.,-lunonm n --- mnulm. --- srimmmtn - t <br /> Pacific Environmental Group Client Prof ID 311-174 1A/13P 5447, Stockton Sampled 02/04/98 <br /> 2{)25 Gateway Place, Sude 440 Sample Descnpt GT3-A Recelved 02/05/98 <br /> San Jose, CA 95110 Matrix SOLID Extracted 02/06/98 <br /> Analysis Method MISMod/8020 Analyzed 02/10/98 <br /> j;;Attention Jessica Nelligan Lab Number 9502211-07 Aeportsd 02/t0/96 <br /> ,nllltliFllt -_ �tnnrtian,tst�� _ - III 11tls - -= =-- nRnnllultl t,.;.: --,nnxntmm�; <br /> —=--ew uuiiEimar.—__-' - .I rMilumrr a .rmnmtmn. <br /> QC Batch Number GCO20B98BTEXEXA -- <br /> Instrument 1D GCHP01 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH)with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> mg/K9 mg/K9 <br /> I <br /> TPPH as Gas 10 N D <br /> Methyl t Butyl Ether ... 0,25 . .. . 24 i <br /> Benzene 0 050 N D <br /> Toluene 0 050 N 0 <br /> Ethyl Benzene 0050 N D <br /> Xylenes(Total) 0 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trrtluorotoluene 70 130 91 <br /> 4-BromoHuorobenzens 60 140 00 I <br /> t <br /> I <br /> I <br /> I <br /> I <br /> Analytes repartod a9 N a were not present above the stated hM1t or dotectlon <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> I <br /> I <br /> Tvd Granlcher <br /> Project Manager Page 11 <br /> i <br /> t <br /> i <br />