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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 /> Wel] Elevation to Water Elevation Thickness Ethyl-
<br /> Number Date (feet) (feet) (feet) (feet) Benzene Toluene benzene Xylenes TPH-g MTBE
<br /> RW2 09/20/01 676 1776 -1100 000 72 46 46 697 4,600 <2 5
<br /> RW2 12/04/01 6 76 1754 -1078 000 39 19 150 113 3 2,800 <5*
<br /> RW2 03/05/02 676 1665 -9 89 000 51 5 290 176 182 4,560 h 132
<br /> RW2 03/05/02 676
<br /> <0 5*
<br /> RW2 06/11/02 676 1723 -1047 000 360 144 106 745 3,830 h 660
<br /> RW2 06/11/02 676
<br /> <0 5*
<br /> RW2 09/10/02 676 18 37 -1161 000 600 240 154 950 4,380 h 103
<br /> RW2 09110/02 6 76
<br /> <5*
<br /> RW2 12/18/02 676 18 12 -11 36 000 540 208 134 694 2,200 h 15 5
<br /> RW2 12/18/02 676
<br /> <0 5*
<br /> RW2 03/24/03 676 1740 -1064 000 262 7 5 558 257 2,950 h 274
<br /> RW2 03/24/03 6 76
<br /> <0 5*
<br /> RW3 05/22/90 889 3095 -2206 000 16,000 41,000 5,500 31,000 160,000
<br /> RW3 12/19/90 889 3302 -2368 061 Not sampled-LPH
<br /> RW3 01/30/91 8 89 33 73 -24 12 098 Not sampled-LPH
<br /> RW3 05/02/91 8 89 3275 -2347 054 Not sampled- LPH
<br /> RW3 07/16-17191 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 8 89 3269 -2370 0 14 Not sampled-LPH
<br /> RW3 04/30/92 889 3227 -2334
<br /> 006 Not sampled- LPH
<br /> RW3 08/13/92 8 89 3467 -25 50 039 Not sampled- LPH
<br /> RW3 10/08/92 8 89 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 05/18/93 889 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 12/30/93 889 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 05/10/94 889 28 81 -1992 000 10,000 16,000 2,200 10,000 76,000 --
<br /> RW3 08/02/94 8 89 3035 -2146 000
<br /> RW3 11/01/94 889 3059 -2170 000 11,000 16,000 2,800 14,000 92,000
<br /> RW3 02/17/95 889 2808 -19 19 000 9,800 12,000 2,600 11,000 79,000 --
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<br /> Psbe 32 of 47
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