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Table 1
<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 DTR` G1NT Thickness TPH(G) 13 T E Y MTBE!:
<br /> ITOC•
<br /> U-3
<br /> 11.25 08/19/94 47.12 -35.87 0.00 51,000 9,700 1,300 2,100 5,600
<br /> 11/17/94 47.48 -36.23 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 0.00 53,000 7,600 3,900 2,600 11,000
<br /> 08/09/95 41.15 -29.90 0.00 38,000 4,800 1,900 2,100 9,600 -- •
<br /> 11/08/95 41.03 -29.78 0.00 28,000 2,400 1,400 1,900 4,900
<br /> 02/06/96 39.42 -28.17 0.00 36,000 3,700 1,400 1,900 8,000 3
<br /> 05/07/96 36.69 -25.44 0.00 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 36.05 -24.80 0.00 43,000 2,400 1,000 1,600 6,300
<br /> 02/03/97 32.44 -21.19 0.00 39,000 2,100 1,100 1,500 6,100 <500
<br /> 05/01/97 31.73 -20.48 0.00 19,000 1,100 660 1,200 5,000 260
<br /> 08/04/97 32.02 -20,77 0.00 810 35 21 67 15 <5.0
<br /> 11/03/97 33.00 -21.75 0.00 25,000 960 580 1,500 5,100 <130
<br /> 02/13/98 30.22 -18.97 0.00 41,000 1,700 820 1,900 6,300 <500
<br /> 03/09/98 29.40 -18.15 0.00 28,000 1,300 600 1,200 4,500 <250/<1004
<br /> U-4
<br /> 11.71 - 08/09/95 42.03 -30.32 0.00 -- -- -- -- --
<br /> 11/08/95 41.72 -30.01 0.00 440 49 1.2 0.66 230 •
<br /> 02/06/96 40.29 -28.58 0.00 340 <2.0 <2.0 <2.0 7.2
<br /> --
<br /> 05/07/96 37.25 -25.54 0.00 320 62 2.0 1.4 1.8
<br /> -08/06196 36.94 -25.23 0.00 330 110 0.68 13 2.0
<br /> 11/05/96 36.81 -25.10 0.00 190 3.9 <0.5 <0.5 <0.5 --
<br /> 02/03/97 33.40 -21.69 0.00 2601 1.9 <0.5 <0.5 1.6 8.5
<br /> 05/01/97 32.21 -20.50 0.00 77 <0.5 0.89 <0.5 2.3 <5.0
<br /> 08/04/97 32.43 -20.72 0.00 UO <0.5 <0.5 <0.5 <0.5 <5.0
<br /> 11/03/97 33.44 -21.73 0.00 603 <0.5 <0.5 <0.5 <0.5 <5.0
<br /> 12/23/98 31.03 -19.32 0.00 955 1.3 4.3 0.60 3.8 13
<br /> 03/09/98 29.98 -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 42.49 -29.91 0.00 <50 <0.5 0.53 <0.5 <0.5
<br /> 0187.x1s/#280(45 2 As of 03/09/98
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