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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 /> WELL IDI DATE DTW GWE TPH-G S T 1G+ X MTBE 1,2-DCA
<br /> TOC* (ppb) (ppb) (ppb) (ppb) (Ppb) rppb) fppb)
<br /> MW-11 06/15/00 3323 -2201 15,400 4,950 204 301 1,290 -- --
<br /> (cont) 09/19/00 3488 -2366 8,270 682 60 28 255 <20 <10
<br /> 12/13/00 3217 -2095 1,890 <1 <1 <1 52 <2 <1
<br /> 03/27/01 2986 -1864 8,600 2,210 <100 820 <200 <200 <100
<br /> 05/31/01 3078 -1956 7,500 2,330 1,980 320 1156 <20 <10
<br /> 09/25/01 3489 -2367 1,770 <1 0 <1 0 <1 0 1204 <2 0 <1 0
<br /> 12102-04/0125 3263 -2141 14,000' 5,300 900 320 1,300 <40 <40
<br /> MW-12
<br /> 06/03/92 -- -- 23,000 2,300 2,000 840 1,700 -- 92
<br /> 09/30/92 -- -- 16,000 1,700 1,000 590 880 24
<br /> 12/30/92 -- -- 23 000 3,200 1,200 560 1,800 -- 32
<br /> 11 19 03/25/93 5328 -4209 21,000 2,800 1,900 700 1,400 -- <50
<br /> 1098 06/28/93 5732 -4634 22,000 1,300 920 500 1,800 -- 97
<br /> 09/29/93 5878 -4780 20,000 1,200 840 660 1,400 -- ND
<br /> 12/20/93 5252 -41 54 31,000 1,600 720 320 1,900 -- ND
<br /> 03/29/94 4948 -3850 36,000 3,400 3,500 650 3,200 -- ND
<br /> 06/28/94 5473 -4375 25,000 760 820 340 2,200 -- <10
<br /> 09/14/94 5738 -4640 23,000 1,200 720 540 1,800 -- ND
<br /> 12/06/94 5210 -4112 20,000 540 390 150 1,200 -- --
<br /> 02/08/95 4918 -3820 22,000 550 700 280 1,400 -- --
<br /> 06/21/95 4997 -3899 9,600 800 230 300 740 -- --
<br /> 09/19/95 5215 -4117 10,000 620 160 270 640 -- --
<br /> 12/19/951 4657 -3559 8,600 830 23 420 280 --
<br /> 03/11/96 4311 -3213 -- -- -- -- -- --
<br /> 06/19/96 4499 -3401 2,500 250 59 86 38 89 --
<br /> 09/17/96 4716 -3618 2,700 200 43 130 150 83 --
<br /> 12/05/96 4245 -3147 5,400 540 39 360 200 100 --
<br /> 03/24/97 -- -- -- -- -- "- -- -- --
<br /> 06/18/97 -- -- -- -- -- -- -- -
<br /> 09/16/97 4415 -33 17 250 18 054 069 14 37 --
<br /> 5098.080046 is 612/04101
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