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<br /> TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE,STOCKTON,CALIFORNIA
<br /> Casing Depth Groundwater LPH Concentration( /L)
<br /> Well Elevation to Water Elevation Thickness Ethyl-
<br /> Number Date (feet) (feet) (feet) (feet) Benzene Toluene benzene Xylenes: TPH-g MTBE
<br /> RW2 03/24/03 6 76 1740 -1064 000 262 7 5 55 8 257 2,950 h 274
<br /> RW2 03/24/03 676 <0 5*
<br /> RW2 06/11/03 6 76 1776 -11 00 000 422 150 813 427 2,450 h 62 7
<br /> RW2 06/11/03 676 <0 5*
<br /> RW3 05/22/90 889 3095 -22 06 000 16,000 41,000 5,500 31,000 160,000 --
<br /> RW3 12/19/90 889 3302 -2368 0 61 Not sampled-LPH
<br /> RW3 01/30/91 889 3373 -24 12 098 Not sampled-LPH
<br /> RW3 05/02/91 889 3275 -2347 054 Not sampled-LPH
<br /> RW3 07116-17/91 889 3372 -2449 047 Not sampled- LPH
<br /> RW3 16/15/91 8 89 3S27 -25 58 1 10 Not sampled-LPH
<br /> RW3 01/28/92 8 89 3269 -2370 0 14 Not sampled-LPH
<br /> RW3 04/30/92 8 89 3227 -2334 006 Not sampled-LPH
<br /> RW3 08/13/92 889 3467 -2550 039 Not sampled-LPH
<br /> RW3 10/08/92 889 3536 -2606 056 Not sampled-LPH
<br /> RW3 02/23/93 8 89 31 34 -2245 000 4,100 4,300 1,600 8,300 47,000 --
<br /> RW3 05/18/93 8 89 3002 -21 13 000 19,000 22,000 3,100 17,000 90,000
<br /> RW3 08/22/93 8 89 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 8 89 2927 -2038 0 00 9,600 14,000 2,200 9,600 70,000 --
<br /> RW3 05/10/94 8 89 28 81 -1992 000 10,000 16,000 2,200 10,000 76,000 --
<br /> RW3 08/02/94 889 3035 -21 46 000
<br /> RW3 11/01/94 8 89 3059 -21 70 000 11,000 16,000 2,800 14,000 92,000 --
<br /> RW3 02/17/95 8 89 2808 -1919 000 9,800 12,000 2,600 11,000 79,000 -
<br /> RW3 05/11/95 889 2537 -1648 000 7,600 10,000 2,700 12,000 90,000 --
<br /> RW3 08/24/95 889 2672 -1783 000 9,600 15,000 4,600 20,000 100,000 --
<br /> RW3 10/19/95 8 89 2705 -18 16 000 7,000 12,000 3,400 14,000 87,000 <1,000
<br /> RW3 02/13/96 8 89 24 84 -1595 0 00 4,800 5,800 2,100 8,700 59,000 <500
<br /> RW3 04/18/96 889 2245 -1356 000 5,100 6,700 2,600 11,000 78,000 <250
<br /> RW3 08/08/96 8 89 2360 -1471 000 4,200 5,900 2,600 12,000 58,000 <1,250
<br /> RW3 11/04/96 8 89 2394 -1505 000 4,300 4,300 2,600 11,000 67,000 <250
<br /> RW3 02/03/97 8 89
<br /> glprojecis173942iinasterlwp1gO643U942gw xls Pabe 33 of 49
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