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KD <br /> Sequoia 8t95tnkerAveSieSacramrnto CA 95614 t <br /> Analytical 5916)92] oloo <br /> FAX(91 G)921-oloo <br /> a(i <br /> wwu sequoialabs com <br /> t <br /> Gettlei-Ryan-Dublin Protect Former Unocal 5098,Stockton, CA 5305190 <br /> 6747 Sierra Court Ste J Project Number N/A Repot ted _ <br /> Dublin CA,94568 Project Manager Deanna L Harding 05/21/03 17 32 <br /> Volatile Organic Compounds b EPA Method 8260B - <br /> Y Quality Control <br /> Sequoia Analytical - Sacramento <br /> Ri,ponuig Spike Source °/aRLC RPD <br /> Analyte Result Limit units Level Result %REC Limits RPD Limit Notes <br /> Batch 3050234-EPA 5030B JP/T] 1 <br /> Laboratoiv Control Sample(30-50234-BS]) Prepared 05/14/03 Analyzed 05/15!03 <br /> Sur rooaie 4 BFB 224 ug/1 25 0 90 70 130 i <br /> �i <br /> Laborator v Control Sample(3050234-BS2) Prepared& Analyzed 05/15/03 <br /> Benzene 24 3 050 ug/l 25 0 97 70 130 <br /> Chlorobenzene 24 5 050 25 0 96 70 130 <br /> 1 1-Dichlrnoeihene ?? 3 0 50 25() 93 70 ]30 <br /> 7 oluene 25 2 <br /> 0 50 250 101 70-130 <br /> Ti rchloroethene 23 0 050 25 0 92 70-1313 _ <br /> Surrogate 1 2-,DCA d4 20 7 250 IUS 60-140 <br /> Surrogate DrhromoJluoromelhane 25 6 250 101 70 130 <br /> Surrogae 1 2 DCA-d4 26 ? " 25 0 105 701,0 <br /> Sur r ogate Toluene-d8 _26 0 21 0 164 70 13!1 <br /> Sea r oa are 4 BFB 22 4 ')s 0 90 70 13U <br /> t <br /> Batch 3050307- EPA 5030B lP/7 ] <br /> — Blank (3050307-BLK1) Prepared& Analvzed 05/19/03— - -- _ - --- - <br /> ` Benzene ND 0 50 ugll <br /> Bromoberizene ND -- -0 50•- <br /> - 7 ei-t-butt']alcohol ---- - -- ---- -- -- ND <br /> Biomothloiomethane -- _ -- _ - -- --ND - - -- 050- --'- - - -- - - --- -- — <br /> Broniodichlororwhaue ND 050 <br /> Di-isopropyl cilier ND 20 <br /> i <br /> + <br /> Bronioforin__ -- _ - - ND - y �0 50. 1 _._ _ _ _ _ _ __ - . . _.. _- __ —. - <br /> Ethyl ten burvl ether ND 20 " <br /> Bromoinethane ND 10 �y <br /> Teri-an))I methyl ether ND 20 " <br /> Ethanol ND 500 <br /> ii-Butylbenzene ND 050 <br /> —1,2-Dechloioeth ane-- ---- - ND----2 U — ----- ----- -------- --- ----�, <br /> sec-Butvlbenzene ND 050 <br /> 12-Dibminoelh ine(EDB) ND 20 <br /> teri-Butylbenzene ND 050 " <br /> Carbon teuachloiide ND -0 50 <br /> u <br /> Se oia Analytical - Sacramento ' <br /> � �' Tile results at this repo r apple to the samples anah zed In arca dance with the chain of <br /> cuslod"document Unless other is Ise seared resuh%are reported on a wel welghi basis <br /> Thrs analwical i epor 1 nw%r be r epr oduced 177 rrc emir en <br /> Page 118 of 121 <br />