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CD— <br /> Sequoia 1455 McDowell Blvd North,Ste D <br />' 4 Peralurna, r-A 94954 <br /> Analytical 071 792-1865 <br /> FAK(707) 7920342 <br /> Pmjecr Unocal/Tosco Sampled 5/19/99 <br /> Digital Dy Suite too Project Number 5098/227903UN4 Recesvedl 5/24199 <br /> Novato,CA 94949 Proeat Mau= C}lenn r+fattuecct Reported 618144 <br /> V0101te OrgrMit Campov4do byVAWtb9dA2 /Qaajij►Contrtil <br /> Sete Oj4 AnalytiW-Petaltma <br /> Date Spike Sataple QC Repor&g JA It Recov RPID RPD <br /> Anal AnalMd Leval Result Result Units Recov Llnnts % Luna % Notes* <br /> 113,q <br /> tch. 9060023 Date Prawlre 1- 611 ExtractionM od; -EPA 5035 <br /> Blank 023-BLi - <br />'Tcrt-amyl methyl etet 6/1199 ND mg/kg 0.00500 <br /> Ten-butyl alcohol " ND " 0.100 <br /> Di-isopropyl ether " ND " 0.00500 <br /> 1,20bromeethane(EDB) " ND " 0.00500 <br /> 1,2-Dlehiometh ane " ND 0.00500 <br /> Lanal <br /> ND <br /> Ethyl ten0-200 <br /> t butyl ether " ND ^ 0.00500 <br /> etbyt tort-bu ether ND 0.00500 <br /> arrogate Drbromofluoromethane " 005019 00458 PF 800-120 976 -- <br /> wrogate 1,2-Drchloroelhane-d4 " 00500 00489 " 800-120 978 <br /> 5'urmgate 7'alaene-d8 " 0 OS00 00508 ^ 810-117 102 <br /> rrr"gate 4-Bromoi7wrobenzene " 00500 00499 " 740-121 998 <br /> Les B51 <br /> oth tett-butyl ether _ 6/1/99 00500 00478 1 758-124 956 <br /> kPp. Dlbrornafluoron ahafte " 0 0500 0 0480 " 900-120 96.0 <br /> gale 1,2-Dtrhloroetha►te-d4 " 00500 00487 ^ 800-120 974 <br /> urrogate Toluene-d$ " 00500 00492 " 810-117 984 <br /> t'uatrix <br /> rrogate dBroaeofluorobenzene " 00300 00485 " 740-121 970 <br /> Svike W0023-NEI z2ggs&al <br /> etb tert-b 1 ether 6/1199 00500 IND 00479 758-124 95.8 <br /> urrogate Dtbrorttofluorortlethane of 0 OSOO 00490 U 800-120 980 <br /> arrogate 1.2-Dtchloroethaw d4 " 00500 00483 if 900-120 066 <br /> Surrogate Toluene-d8 " 0 OS00 00486 to 810-111 972 <br /> (atrix <br /> rrogate 4-Br mofluvrobenzene 00500 00490 ^ 740-121 980 <br /> S rke D X90615 Q ,-MSD1 "1 <br /> Methyl tett-butyl ether 6/1/99 00500 ISD 00406 mWka 758-124 97.2 350 1.45 _ <br /> alft-ogate Dtbromafluorotrtetharle " 00500 00480 " 400-120 960 <br /> Wirrogate 1,2 Dohlorocthane-d4 ^ 00500 00479 800-120 95.8 <br /> Surrogate Toluene-d8 " 00300 00481 " 810-117 962 <br /> Iffr"PW <br /> 9-Bromofluarobenzene " 00500 00497 " 740-121 994 <br /> 1 <br /> quoin Analytzcrsl -Petaluma *'Refer to end of report for text of notes and defrnrtrons <br /> Page 4 of 5 <br />