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<br /> Groundwater Monitoring Data and Analytical Results
<br /> Former Unocal Service Station#0187
<br /> 437 East Miner Avenue
<br /> Stockton, California
<br /> Product
<br /> Well ID/ Date DTW GWE Thickness TPH(G) B T E X MTBE
<br /> TOC* (ft.) [ft,} (ft) < -ppb >
<br /> U-3
<br /> 1125 08/19/94 47 12 -35 87 000 51,000 9,700 1,300 2,100 5,600 --
<br /> 11/17/94 4748 -3623 0 00 42,000 9,600 1,800 2,000 4,600 --
<br /> 02/17/95 45 57 -34 32 0 00 47,000 9,100 2,100 1,600 5,300 _
<br /> 05/09/95 42 82 -31 57 000 53,000 7,600 3,900 2,600 11 000 --
<br /> 08/09/95 41 15 -29 90 000 38,000 4,800 1,900 2,100 9,600 --
<br /> 11/08/95 4103 -2978 000 28,000 2,400 1,400 1,900 4,900 --
<br /> 02/06/96 3942 -28 17 000 36,000 3,700 1,400 1,900 8,000 7
<br /> 05/07/96 3669 -25 44 000 36,000 4,600 1,800 2,400 10,000 3
<br /> 08/06/96 36 47 -25 22 0 00 43,000 2,600 1,000 1,700 7,000 --
<br /> 11/05/96 3605 -24 80 000 43,000 2,400 1,000 1,600 6,300 --
<br /> 02/03/97 3244 -21 19 000 39,000 2,100 1,100 1,500 6,100 <500
<br /> 05/01/97 3173 -20 48 0 00 19,000 1,100 660 1,200 5,000 260
<br /> 08/04/97 32 02 -2077 000 810 35 21 67 15 <5 0
<br /> 11/03/97 33 00 -2175 000 25,000 960 580 1,500 5,100 <130
<br /> 02/13/98 3022 -18 97 0 00 41,000 1,700 820 1,900 6,300 <500
<br /> 03/09/98 2940 -18 15 0 00 28,000 1,300 600 1,200 4,500 <250/<100
<br /> U-4
<br /> 1171 08/09/95 42 03 -30 32 0 00 -- -- _-
<br /> 11/08/95 4172 -3001 000 440 49 12 0 66 230 --
<br /> 02/06/96 40 29 -2858 000 340 <2 0 <20 <20 7 2
<br /> 05/07/96 3725 -25 54 0 00 320 62 2 0 14 1 8 --
<br /> 08/06/96 3694 -25 23 0 00 330 110 0 68 13 2 0
<br /> 11/05/96 36 81 -25 10 0 00 190 3 9 <05 <0 5 <0 5 --
<br /> 02/03/97 3340 -2I 69 000 260' 1 9 <0 5 <05 1 6 8 5
<br /> 05/01/97 3221 -20 50 000 77 <0 5 089 <05 2 3 <50
<br /> 08/04/97 3243 -20 72 0 00 <50 <0 5 <05 <0 5 <05 <5 0
<br /> 11/03/97 33 44 -21 73 000 602 <05 <05 <0 5 <0 5 <5 0
<br /> 12/23/98 3103 -19 32 0 00 95s 13 4 3 0 60 3 8 13
<br /> 03/09/98 2998 -18 27 0 00 <50 <0 50 <0 50 <0 50 <0.50 <2 5/2 84
<br /> U-5
<br /> 12 58 08/09/95 42 80 -30 22 0 00 -- -- _- __
<br /> 11/08/95 4249 -2991 000 <50 <05 0 53 <0 5 <05 --
<br /> 0187 xls/#280045 2 As of 03/09/98
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