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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 03/08/01 676 1523 -847 000 26 17 62 261 2,500 10
<br /> RW2 06/21/01 6 76 1667 -991 000 78 9 9 43 403 3,700 24
<br /> RW2 06/21/01 6 76 <5*
<br /> RW2 09/20/01 676 17 76 -1100 000 72 46 46 697 4,600 <2 5
<br /> RW2 12/04/01 676 17 54 -1078 000 39 19 150 1133 2,800 <5*
<br /> RW2 03/05/02 676 1665 -989 0 00 515 290 176 182 4,560 h 132
<br /> RW2 03/05/02 676 <0 5*
<br /> RW2 06/11/02 676 1723 -1047 000 360 14 4 106 745 3,830 h 660
<br /> RW2 06/11/02 676 <0 5*
<br /> RW2 09/10/02 676 1937 -1161 000 600 240 154 950 4,380 h 103
<br /> RW2 09/10/02 676 <5*
<br /> RW2 12/18/02 6 76 1812 -1136 000 54 0 208 134 694 2,200 h 155
<br /> RW2 12/18/02 676 <0 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 8 89 3302 -2368 061 Not sampled-LPH
<br /> RW3 01/30/91 889 3373 -24 12 098 Not sampled-LPH
<br /> RW3 05/02/91 8 89 3275 -2347 0 54 Not sampled-LPH
<br /> RW3 07/16-17/91 889 33 72 -2449 047 Not sampled-LPH
<br /> RW3 10/15/91 8 89 3527 -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 02/23/93 889 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 -21 71 000 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 0 00 9,600 14,000 2,200 9,600 70,000 --
<br /> RW3 05/10/94 8 89 2881 -1992 000 10,000 16,000 2,200 10,000 76,000 --
<br /> RW3 08/02/94 889 3035 -2146 000 --
<br /> RW3 11/01/94 889 3059 -21 70 000 11,000 16,000 2,800 14,000 92,000
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