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8145ac to uCA 9513U <br /> e, Sequoia (916)921-9600 <br /> FAX(916)921-0100 <br /> wv w Seguoralabs coal <br /> Analytical <br /> sarupled 3/24/00 <br /> COR Intemauonal-Sacramento Protect ARCO 2133,Stockton,CA Received 3/27/00 <br /> 12 Business Park Dr.Ste 100 Project Number NIA 1UA 4/6100 <br /> aauiento,CA 95827 �Ct—Manager RusEy Benkosk.' <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUF T/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Reporting!(.�mEt Re RPD RPD <br /> Date Sptkc Sample QC P Lunst ' <br /> Analvzed Level Result Result UnIG Recov Limits % /o Notes <br /> itch. 00400 3 <br /> Date Pre aced 413100 Extraction Method EPA50N B MOR-1 <br /> lark 40013-13L K1 ND ug/1 Soo <br /> ngeable Hy4/31Q4 drocarbons ND 0 500 <br /> enzene ND ' <br /> 0.500 <br /> oluene ND 0.500 <br /> thylbenzene ND 0 500 <br />)lents(total) ND 250 -- <br /> jethvl tent-butyl ether10 0 – 9 92 60 0-140 992 <br /> urragare aa a-Tryluorotaluene <br />.CS 0040Q13-BS 914 ug/1 700-130 914 <br /> lenzene 4/3/00 100100 <br /> Q0 950 700-130 950 <br />-oluene 100 987 700-130 987 <br />;xhvlbenzene 300 306 700-130 102 <br /> Ky {total} 100 101 <br /> 700-130 101 <br /> vi rt-butyl ether 10 0 ND 600-140 ND ND <br /> Surrogare a a a-Tryluorotoluene <br /> Mtri ike 004Q013 MSl OULS -O3 600-140 922 <br /> 13cnzene 4/3100 100 ND 922 ug/] 600-140 910 <br /> 100 ND 9 10 " <br /> Toluene10 0 ND 959 ^ 600-140 95.9 <br /> @thylber, nc 30 0 ND 28 9 60 0-140 963 <br /> Xylenes(total) 60 0-140 106 <br /> Methyl tcrt-buty100 11l ether 10 0 7 07 11 5 7 U 60 0-140 115 <br /> Surrogate a,a,o-Trtlluorotoluene <br /> Matrix Spike Dao 0040013-MSAI &53:93 <br /> 413/00 too ND 9 26 ue,11 600-140 92.6 250 O i33 <br /> Benzene 100 ND 911 ' 60 0440 911 25 0 0 110 <br /> Toluene ^ 100 ND 959 ^ 600-140 95.9 250 0 <br /> EthylbenzeneD 29 0 60 0.140 967 250 0 415 <br /> Xylenes(total) 300 ND•1 l0 0 7 176 600-140 105 25 0 0 948 <br /> Mezh)1 tert-buryl ether 100 11 6 60 0-140 116 <br /> Surrogate a aa-TnJluorotoluene <br /> Da � prepa 414 0 Ex actaon Method' EPA 030B e0 <br /> ID <br /> Batch <br /> lank 0040029-BL 1 ND u0/1 Soo <br /> Purgeable H 414100 ydrocarbons IM 0 500 <br /> Benzene ND 0.500 <br /> Toluene ^ ND 11 0-500 <br /> Ethylb=wne ND 0 500 <br /> Xylenes(total) ND + 2.50 <br /> 1 text butyl ethar " <br /> *Refer to end of report for text of notes and dafrn�tro�s <br /> Soquo�a Anslyucal-Sacramento <br /> Page 4 of 6 <br /> 61/9 d 9dS1/HIOno3s Wd9S i0 00, 90 dc'U <br />