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<br /> Groundwater Monitoring 11W and Analytical Results S
<br /> Former Unocal Service Station#2859
<br /> 1665 Pacific Avenue
<br /> Stockton,California
<br /> WELL IDI DATE DTW GWE TPH-G R T E X MTBE
<br /> TOC*(ft) (ft) (msl) (ppb) (ppb) (ppb) (ppb) (ppb) (PP6)
<br /> MW-2 05/30/90 -- -- 260,000 27 000 66,000 5,100 27,000 --
<br /> (cont) 08/24/90 DRY - --
<br /> 11/19/90 DRY
<br /> 02/25/91 DRY
<br /> 05/29/91 DRY
<br /> 08/28/91 DRY -- "- -_
<br /> 11/06/91 DRY
<br /> 03/04/92 DRY -- - -"
<br /> 05/21/92 DRY -
<br /> 08/18/92 DRY -- - --
<br /> 11113/92 DRY -- --
<br /> 1019 03/26/93 4835 -3816 480,000 14 000 75,000 6,500 37,000 --
<br /> 06/04/93 4655 -3636 170,000 15 000 65,000 5,000 24,000 --
<br /> 11/12/93 4678 -3659 130 000 14 000 27,000 7 000 28,000 -
<br /> 02/18/94 4482 -3463 200 000 25 000 67,000 5 000 28,000 --
<br /> 05/23/94 4361 -3342 130,000 27 000 68,000 S400 29,000 --
<br /> 08/12/94 4538 -35 19 180,000 15 000 62(H)0 5 300 29,000 --
<br /> 11/08/94 45,57 -35 38 120 000 12000 61,000 6 000 28,000 --
<br /> 02/07/95 4328 -3309 120,000 13 000 60 000 5,500 29,000 --
<br /> 05/04/95 3978 -2959 170,000 20,000 54,000 4,400 23,000 --
<br /> 08/10/95 -- -- --
<br /> 1008
<br /> -1008 08/26/95 3989 -2981 140,000 4 400 63,000 5 400 28,000
<br /> 11109/95 3955 -2947 140,000 6,400 45,000 5,600 29,000 -
<br /> 02108/96 3701 -2695 280,000 3,500 100,000 9,200 52,000 --
<br /> 05/08/96 3359 -2351 180,000 1,900 46,000 4,200 25,000 ND
<br /> 08/07/96 3429 -2421 290,000 1200 52,000 8,900 38,000 ND
<br /> 11/14/96 1441 -2411 180,000 4200 50,000 9,900 39 000 ND
<br /> 02/14/97 3070 -2062 110,000 1,500 29,000 4,100 20,000 ND
<br /> 0.5/07/97 2897 -1889 77,000 1,200 28,000 3,900 18,000 ND
<br /> 03/06/98 2697 -1689 80,000 780 15,000 3,000 14,000 °ND/ND4
<br /> 06118/98 2407 -1399 90,000 1,600 19,000 4,400 21,000 IND121
<br /> 08/31/98 2485 -1477 83,000 1,000 12,000 4,000 18,000 3NDINW
<br /> i
<br /> 2859 xls/1l280054 3 As of I V09102
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