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(i)_ (SeC1llQla 819Sinker A,eSte <br /> Sacramento CA 9584434 <br /> mW Analytical <br /> 916)921 9100 <br /> , FAN(916)92]_0100 <br /> www cequoialabs con, <br /> Gettler-Ryan-Dublin Project Former Unocal 5098,Stockton,CA S105190 <br /> 6747 Sierra Court Ste J Prnlect Number N/A Reported r` <br /> Dublin CA,94568 Project Manager Deanna L Harding 05/21/03 17 32 <br /> Gasolme1BTEX\Oa senates b EPA method <br /> J b Y 8260B - QelalRty Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spike Source %R£C RPD <br /> Analyte Resuh Limit Units Level Recult %R£C Limits RPD Limit Notes <br /> Batch 3050234-EPA 5030B IP/TJ <br /> Blank(3050234-BLK1) _ _ -Prepared 05/14/03 Analyzed 05/15/03 - <br /> Benzene ND 0 50 ugA <br /> Toluene ND 0-SO " <br /> Ethvlbenzene ND 0 50 " <br /> Xylenes(total) ND 0 50 <br /> Methvl ten-butyl ether ND 20 <br /> Sur r ogate 1 2-DCA d4 -170 " 25 0 108 60-140 <br /> Surrogate Toluene-d8 26 h 25 0 107 60 140 <br /> Suri ogare 4 BFB 214 250 86 60 140 <br /> Blank(3050234-BLK2) Prepared 8 Analyzed 05/15/03 <br /> Benzene ND 0-SO ug/l <br /> Toluene - ND 0_'10 - <br /> Eihylbenzene ND 050 <br /> Xvlenes(total) ND 050 _ <br /> Methyl Cert-hut}1 ether ND 2 0 <br /> AM <br /> Stn rogate 1 1-DCA d4 _ 16 J_ ___250— 104=60 140= -- <br /> Sdrro,,aae Toluene-dN 26 N '50 107 60 140 <br /> -- Sur rogaie-4-BFB - - - — 214-- -- -_"__250 - -- -N6= h0=140 T <br /> Laboratory Control Sample(3b5fl234-BS1) T Prepared 051]4103 Analyzed 05/15/03 <br /> Benzene 24 2 0 50 ug/] 25 0 97 70 130 <br /> I oluene 24 4 <br /> 050 25 0 ,,.. 98 ._ 70-130 <br /> _'S'.- `_ �. .. _ ... .._s . _...... �_...� x ..... ...._ r <br /> 0� 250 101 60-140 <br /> Sur i ogare 1 2-DCA-d4 16 S 2 5 0 106 60-140 <br /> Surrogate Toluene dA 260 250 104 fro-140 <br /> Sur r agate 4 BFB 17 4 250 90 60 140 <br /> Laboratori Control Sample(3050234-BS2) Prepared cC Analyzed 05/15/03 <br /> Benzene 24 3 0 i0 ug/l 25 0 97 70-130 <br /> Toluene 25 2 050 25 0 101 70 130 <br /> Methyl tert-beryl ether- - 280 -- 2 0 25 0 112 60-140 <br /> J <br /> Sequoia Anal qtcal - Saciamento The results in rhr s report applt to rhe samples anahzed in accoi dance with rhe chars of J <br /> custodi document Unless orhen,isesrared retulis are reported on a wer„erglrt basis <br /> Tins analytical r epor t must he rept oduced m its enrnen <br /> Pa,ae 102 of 121 <br />