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404 N wget i erre' <br /> Walnut Crede,CA 94598 <br /> Sequoia (925)988-9600 <br /> —_ - FAX(915)988.9673 <br /> � Analytical "�"�' "°�' ° <br /> I Gettler Ryan,Inc -Dublin Project. Unocal <br /> 6747 Sierra Court Suite J Project Unocal#5886 Reported <br /> Dublm CA,94.568 _ _ Project Manager Deaana L Harding 29-Dec-00 08 59 <br /> Volatile Organic Compounds by EPA Method 8260B-Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> - - Reportmg Sp&e Source _ %REC RPD ' <br /> Analyte Result Lunn Units Level Result °YoREC Lrsuts RPD Lrmrt Notes <br /> Batch OK30022-EPA 5030B[PM - <br /> LCS(OK30022 BSI) Prepared&Analyzed.28-Nov-00 <br /> Methyl tart-bertyt oiler 237 050 101 250 948 70-130 <br /> Samogau Drbromgfluwnmedkw 26LO 250 104 50-150 <br /> Surrogate 1 1 Diehloroe&=e-d4 240 250 960 50.150 <br /> LCS(OK30022-BM) Prepared&Analyzed.29-Nov-00 <br /> Mothyl w4mtyl other 233 050 agll 250 932 70.130 ' <br /> Surrogate Drbronwfiuoromed=w 250 " 250 100 so-ISO <br /> Surrogate.42-Drchionved mre-M 200 " 250 8a0 Sa150 <br /> LCS(OK30022-BS3) Prepared&Analyzed.30-Noy-00 ' <br /> Mdhyl tert4yetyt other 22.6 050 WA 250 904 70-130 <br /> Srmngate Drbmmofheoromatiunae 2S 0 2S O 100 50-130 <br /> Surrogate 1,2 DrchIoroedhmae-d! 210 250 880 SO-150 <br /> Matru Spice(OK30022-M91) Source W011423-16 Prepared&Analyzed. 30-Nov-00 <br /> Methyl tort-hidyl ether 22.9 050 U911 250 ND 916 60-150 , <br /> Swmgate Dibron&:b%ommdhane 250 250 100 so-ISO <br /> Surrogate 1,2-Diehloraedxw-di 22.0 250 880 50-150 <br /> Matrix Sp&e Dup(OK30022-MSD1) Source-W011423-16 Prepared&Analyzed 30-Nov-00 <br /> Methyl tert4mu l ether 252 050 Uga 250 ND 101 60-150 956 25 <br /> Sramogate Dibr0m0A0romethmre 250 250 100 50.150 <br /> Sumvgate 1,2-Drcidaroethmre-d4 220 2SO 880 50.150 <br /> Batch OK30024-EPA 5030B[PIT] <br /> Blank(OK30024 BLKI) Prepared&Analyzed 30-Nov-00 <br /> Ethanol ND 500 U84 <br /> tett-t3eatyl"hot ND 50 " <br /> Mathyl tett-bidyl ether ND 2A " <br /> Dr-nopropyl other ND 20 " <br /> lhhyl tai-butyl other ND 20 " <br /> Cert-Amyl methyl other ND 2.0 , <br /> Srvrog to Dibrorraofhrornmedmum 490 " 5ao 980 50.150 <br /> Sro agate 1,2-DicMaroed mw-W 420 Sao 840 50-150 <br /> Sequoia Analytical-Walnut Creels rias results in this,+rears Wly to rhe steres wwlyz a lir ar m dmrca villa rhe chaha <br /> custody dwwnea This mw!vdar r+epon mrrsr be mprtubwed in iti <br /> i <br /> Page 27 of 30 , <br />