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• TAft 1 •
<br /> GROUNDWATER DATA
<br /> THRIFTY OIL STATION#172, STOCKTON, CA
<br /> DATE ANALYTICAL PARAMETERS .DEPTH TO /SEPTA TO PRODUCT CASING GROUNDWATER
<br /> SAMPLED "EPEC BENZENE TOLUENE EthYMcnzeoe XYLENE MTBE GROUNDWATER PRODUCT THICKNESS ELEVATION ELEVATION
<br /> 091 ? (u�l ( t ) ng } {uP,113 ( ) (fejt) (fejt) Met) (feet) (feet)
<br /> 05/17/01 691 58 <0 2 <0 2 <0 4 655 3435 NP 000 1248 -2187
<br /> 08/16/01 26,500 3,380 2,060 1,520 5,340 294 3588 NP 000 1248 -2340
<br /> 11/08/01 23,900 11,300 1,700 81 581 1,760 3664 NP 000 1249 -24 16
<br /> 02/21/02 20,900 2080 912 796 2,840 163 33 55 NP 000 1248 -2107
<br /> 05/22/02 19,500 2,250 649 252 2,600 109 3091 NP 000 1248 -1843
<br /> 08/14/02 153 <0 08 <0 18 <0 17 <0 4 76 3128 NP 000 1248 -1880
<br /> 11/20/02 1,950 141 29 2 9 J 312 36 3281 NP 000 1248 -2033
<br /> 02/12/03 <15 <0 22 <0 32 <0 31 <0 4 11 3126 NP 000 1248 -1878
<br /> 05/21/03 <15 <0 22 <032 <031 <0 4 20 3716 NP 000 1248 -2468
<br /> 08/20/03 <15 <0 22 <032 <031 <0 4 58 3772 NP 000 1248 -2524
<br /> 11/26/03 <15 <0 22 <032 <031 <0 4 14 3847 NP 000 1248 -2599
<br /> 02/05/04 <15 <0 22 <0 32 <0 31 <0 4 11 3563 NP 000 1248 -23 15
<br /> 05/05/04 <15 <0 22 <0 32 <0 31 <0 4 21 3592 NP 000 1248 -2344
<br /> 08/11/04 78 <0 22 <0 32 <0 31 <0 4 67 3927 NP 000 1248 -2679
<br /> 11/10/04 626 16 <0 32 10 1 2 3 J 33 3932 NP 000 1248 -2684
<br /> 02/22/05 <15 <0 22 <0 32 <0 31 <0 4 20 34 10 NP 000 1248 -2162
<br /> 05/11/05 181 <0 22 <0 32 <0 31 <0 4 <0 18 3432 NP 000 1248 -2184
<br /> 08/24/05 <2 9 <0 32 <0 10 <0 24 <0 30 <0 63 3409 NP 000 12 48 -2161
<br /> monitolrin Well-MW-11 Screen Interval=38 to 58 tet
<br /> 08/14/96 <20 000 33,000 46 000 6,300 32,000 *370,000 4440 NP 000 13 18 -3122
<br /> 11/26/96 16,000 5,200 26,500 64 900 *880 4377 NP 000 13 18 -3059
<br /> 02/25/97 1,700 11,000 14,000 1,300 7,100 *52,000 4040 NP 000 13 18 -2722
<br /> 05/28/97 63,000 13,000 16,000 250 8,000 *<2,500 4380 NP 000 13 18 -3062
<br /> 08/19/97 86,000 20,000 26,000 1 2,300 14,000 1,600 4165 NP 000 13 18 -2847
<br /> 11/26/97 63,000 22 000 24 000 <150 11,000 2,300 4065 NP 000 13 18 -2747
<br /> 02/18198 130,000 20 000 15,000 <60 13,000 3,500 39 10 NP 000 13 18 -2592
<br /> 05/27/98 54,000 13 000 6,000 75 9,900 2,300 4060 NP 000 13 18 -2742
<br /> 08/26/98 28,000 4,500 900 <0 3 3,500 2,100 3630 NP 000 13 18 -23 12
<br /> 11/24/98 23,000 5,400 1,100 <6 4,400 X20 3460 NP 000 13 18 2142
<br /> 02/18/99 22 000 5,000 1 200 <6 5200 1,900 32 10 NP 000 13 18 -1892
<br /> 05/20/99 34,000 6,000 1,300 <30 6,000 1,700 3255 NP 000 13 18 -1937
<br /> 08/18/99 140,000 28,000 32,000 1,500 17,000 1,100 3563 NP 000 13 18 -2245
<br /> 11/10/99 28 000 4,700 4300 <60 2,900 1200 37 16 NP 000 13 18 -2398
<br /> 172TAB1 XL5 Page 11 of 12 9/14/2005
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