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'�.- .f'T;:IY n'�".x:K✓Mp'Yrvnvrmew.,,.�.......�.... � I ... <br /> 010 1 <br /> I - <br /> TABLE ] TRENDS JN" CONCENTRATION ( M <br /> ug/L) -OF• PETROLE <br /> GROUNDWATERUHYDROCARBON CONSTITUENTS IN �k <br /> CALIFORNIA' <br /> EXXQN RS 7-1050, ` 909 ,WEST HAMMER LANE, STOCKTON <br /> Well Total <br /> No. p <br /> Petroleum <br /> Be-�ne To3uene �: ].tires Eth�b�nzane , H drocarbans Laborator <br /> MW] 11/13/86 5.8 - y <br /> MW1 06/26/87" 0.5 .3 NA <br /> MW1 6'2.2 141 .4 772.4 290 Sequoia <br /> 02/11/88 <0.5 155.:4 2 750 4 oia <br /> 'MW] 05/23/88 c0..5 <0.5 <0.5 <0.5. Environ <br /> - 0-9 <0.5 < 100 Enseco <br /> MW1 08/26/88 <0.5 <0.5 WESCO (Pace} <br /> MW1 01'/07/89 <0.2 <'0 5 <0.5 <50 <br /> <0'5 <50 Pace <br /> MW1 05/04/89 <0.5 <0 2 <0.2 <0.2 <250 J <br /> MW1 07/19/89 <.0.5 <0.5 <0-5 Pace <br /> �ftr?1 12/19/89 <0.5 <br /> 1 .5 <0.5 c 1 00 Acurex n <br /> <0.5 <0.5 <250 <br /> MW1 02/14/90 <0.5 -�Q 5 <05 <0.5 < <br /> <0.5 <0.5 250 Pace <br /> MW2 11/]3/86 28 <50 Pace <br /> MW2 06/26/87. 8 0 5 2:2 NA <br /> 1 -1 2. 1 290 Sequoia <br /> MW2 02/11/88 <0.5 <0.5 14.9 <br /> MW2 05/23/88: <0-5 <0.5 <0.5 Environ <br /> MW2 482688 <0:5 :, <0.5 <0.5 <<50 Enseco <br /> / / <D.5 <0.5 c0.5 WESCO (Pace} <br /> MW2 01/07. 10.2 <O.S <0.5 <5D <br /> MW2' 05[44/.89 .0-6 <0.2 X0.2 Pace <br /> MW2 5 ..<0.5 .<0:5 <0.5 <250 Pace• <br /> 0,/19/89 <0'.5 <0.5 <0.5 <100 Acurex <br /> MW2 12/19/fig <0'-5 <0.5 <0.5 <250 <br /> MW2 02/14/90 <0.5 <0:5 <0.5 Pace <br /> <0.5 <0:5 <0.S <250 Pace <br /> <0.5 <50 Pace <br /> MW3 11/13/,86 7,"500: 2,300 NA <br /> MW3 06/26/87 3, 078: 890 <br /> MW3 02/.11/88, 300 462.6 9'79.3 14,000 Sequoia <br /> 274. x , ] 08 8,381 Environ <br /> MW3 . 05/23/88" <0'i5 26D 13 2, 100 <br /> MW3 08/26/88 140 ' t0.5. <0:5 <0.S Enseco <br /> MW3 01 .47 .89 .. _ 100 . ]94 <50 WESCO (Pace} <br /> / / 120.;., 360 51p 10 600 Pace <br /> 75 '. 510 Pace <br /> NA = Not analyzed. <br /> * well not properly purged before sample collection. <br /> e35/71050/2 90/t1 <br /> a, <br /> .4 <br /> r . <br /> ._: - <br /> k <br />