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Table 1
<br /> Groundwater Monitoring Data and Analytical Results
<br /> Former Unocal Service Station#5098
<br /> 5400 and 5606 Pacific Avenue
<br /> Stockton,California
<br /> WELLIDI DATE DTW GWE TPH-G B
<br /> T E X MTBE 1,2-DCA
<br /> TOC* (mst) (Ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (PPb)
<br /> MW-ll __ 680
<br /> 06/03/92 -- -- 620 150 70 26 68
<br /> 09/30/92 _-
<br /> 42,000 8,800 6,200 1,600 4,400 56
<br /> --
<br /> 12/30/92 -- -- 84,000 20,000 27,000 2,400 14,000 330
<br /> --
<br /> 190
<br /> 11 5$ 03!25193 53 59 -42 01 78,000 18,000 23,000 2,100 12,000 13,000 300
<br /> 1122 06/28/93 5773 -4651 83,000 18,000 2 ,000 2,100200 1,300 4,000 -- 77
<br /> 09/29/93 5911 -4789 51,000 8,300 7, - 280
<br /> 12/20/93 5364 -4242 100,000 17,000 23,000 1,800 16,000
<br /> __ 220
<br /> 03/29/94 4965 -3843 87,000 14,000 17,000 1,700 9,700 310
<br /> 06/28/94 55 12 -4390 86,000 15,000 20,000 1,700 11,000 --
<br /> 09/14/94 5777 -4655 88,000 12,000 18,000 2,200
<br /> 11,000 -- 180
<br /> --
<br /> 12/00/94 5226 -41 04 75A 17,000 1,500 11,000 00 11,000
<br /> 02/08/95 4932 -38 10 96,000 I1,000 19,000 1,800 10,000 -
<br /> 06/21/95 5031 -3909 71,000 15,000 19,000 1,500 12,000 -- --
<br /> 09/19/95 5249 -41 27 53,000 8,700 9,500 940 6,800
<br /> 12/19/951 4672 -3550 32,000 6,500 2,400 920 4,100
<br /> 03/11/96 4322 -3200 -- --
<br /> 06/19/96 4541 -3419 36,000 5,900 1,000 800 4,500 150
<br /> 09/17/96 4752 -3630 36,000 8,300 4,500
<br /> 1,100 5,600 390 --
<br /> 12/05/96 4258 -31 36 30,000 6,500 780 740 4,300 <1,000 -
<br /> 03/24/97 -- -- _ --
<br /> 06118/97 -
<br /> 09/16/97 4449 -3327 50,000 15,000 1,100 720 7700 2,400, --
<br /> 12/10/97 -- --
<br /> 03/18/98 -- -- -- __ --
<br /> 06/24/98 -- -- --
<br /> 09/15/98 3879 -2757 24,000 6,900 430 360 2,500 <5 0
<br /> 12/22/98 3265 -2143 20,000 5,600 230 330 1,500 <2 5 --
<br /> 03/18/99 3066 -1944 13,000 6,200 210 260 1,700 --
<br /> 06118/99 3424 -2302 23,000 6,000 250 250 1,800 -- '-
<br /> 09/16/99 3675 -2553 19,100 4,940 227 254 1,370 --12/13/99 3227 -2105 18,200 4,170 140 126 1,150 -- --
<br /> 0 0 12104/01
<br /> 5098 40280046
<br />
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