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<br /> TABLE 2 GROUNDWATER MONITORING DATA, FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE, STOCKTON, CALIFORNIA
<br /> Casing Depth Gtoundwater LPH Concentration( /L)
<br /> Well Elevation to Water Elevation Thickness Ethyl-
<br /> Numbei Date (feet) (feet) (feet) (feet) Benzene Toluene benzene Xylenes TPH-g_ _ MTBE
<br /> RW2 08/19/98 676 <40*
<br /> RW2 11/18/98 676 1620 -944 000 110 130 280 510 5,300 95
<br /> RW2 03/30/99 676 1430 -754 000 41 74 217 329 5,720 <20
<br /> RW2 05/05/99 676 1467 -791 000 634 109 263 545 5,380 687
<br /> RW2 08/20/99 676 1602 -926 000 120 56 1 236 265 4,740 251
<br /> RW2 12/06/99 676 1635 -959 000 72 41 210 2299 2,500 <5
<br /> RW2 02/29/00 676 1376 -700 000 17 45 28 164 1,400 <1
<br /> RW2 05/16/00 676 1390 -7 14 000 56 14 100 304 1,700 19
<br /> RW2 09/11/00 676 1627 -951 000 140 34 160 1152 3,700 <5
<br /> RW2 12/13/00 676 16 13 -937 000 73 12 100 24 1 2,700 <2 5
<br /> RW2 03/08/01 676 1523 -847 000 26 17 62 26 1 2,500 10
<br /> RW2 06/21/01 676 1667 -991 000 78 99 43 403 3,700 24
<br /> RW2 06/21/01 676 <5*
<br /> RW2 09/20/01 676 1776 -1100 000 72 46 46 697 4,600 <2 5
<br /> RW2 12/04/01 676 1754 -10.78 000 39 19 150 1133 2,800 <5*
<br /> RW3 05/22/90 889 3095 -2206 000 16,000 41,000 5,500 31,000 160,000 --
<br /> RW3 12/19/90 889 3302 -2368 061 Not sampled-LPH
<br /> RW3 01/30/91 989 3373 -24 12 098 Not sampled-LPH
<br /> RW3 05/02/91 889 32 75 -2347 054 Not sampled-LPH
<br /> RW3 07116-17/91 8 89 3372 -2449 047 Not sampled- LPH
<br /> RW3 10/15/91 889 3527 -2558 1 10 Not sampled-LPH
<br /> RW3 01/28/92 889 3269 -23 70 014 Not sampled-LPH
<br /> RW3 04/30/92 889 3227 -23 34 006 Not sampled-LPH
<br /> I
<br /> RW3 08/13/92 889 3467 -2550 039 Not sampled-LPH
<br /> RW3 10/08/92 8 89 3536 -2606 056 Not sampled- LPH
<br /> RW3 02/23/93 8 89 3134 -2245 000 4,100 4,300 1,600 8,300 47,000 --
<br /> RW3 05/18/93 889 3002 -21 13 000 19,000 22,000 3,100 17,000 90,000 --
<br /> RW3 08/22/93 889 3060 -2171 000 18,000 22,000 2,800 16,000 110,000 --
<br /> RW3 12/30/93 8 89 2963 -2074 000 18,000 22,000 2,900 15,000 96,000 --
<br /> RW3 02/17/94 889 2927 -2038 000 9,600 14,000 2,200 9,600 70,000 --
<br /> RW3 05110/94 889 2981 -1992 000 10,000 16,000 2,200 10,000 76,000 --
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