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<br /> 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 /> WEI.�.IDI DATE DTW GWE TPH-G B
<br /> T E g MTBE 1,2•DCA
<br /> TOCKY) (,MI) (ppb) (PPb) (ppb) (ppb) (ppb) (Ppb) (Ppb)
<br /> MW-1 __ 37
<br /> 1103 03/05/93 5437 -4334 7,000 1,040 680 178 490 6406/28/93 5856 -4753 12,800 771 381 18 1 309 <25
<br /> 09/29/93 6010 -4907 1,500 186 75 171 76 --
<br /> __ 497
<br /> 12/21/93 5221 -41 18 9,520 654 337 99 4 297 92
<br /> 03/29/94 4986 -3983 10,900 1,200 507 148 642 12
<br /> 06/28/94 5605 -4502 19,200 2,890 1,580 726 1,340 493 26 12
<br /> 4 1!5 183 --
<br /> 09/14/94 5897 -4794 5,90f? 65
<br /> 12/06/94 5264 -4161 6,700 800 360 !20 420 -
<br /> 50
<br /> 02/08/953 49 54 -3$51 14,000 1,200 1,700 390 1,400 48
<br /> 06/21/954 5080 -3977 16,000 2,000 1,200 490 1,100 _-
<br /> 26
<br /> 09119195 53 19 -4216 21,000 3,600 1,200 890 1,300 59
<br /> 12119195 4676 -3573 5,700 760 520 210 500 --
<br /> <500 52
<br /> 03111196' 43 19 -3216 10,000 1,600 1,100 230 790 600 <0 5
<br /> 0611919610 4586 -3483 23,000 3,300 3,600 980 3,000 <
<br /> 09/17/96 4800 -3697 15,000 2,600 600 630 850 820 31
<br /> 49 50 47 60 066
<br /> 12105/9611 4271 -3168 1,000 220 <30(1 28
<br /> 03/24/97 4145 -3042 4,900 540 1,300 150
<br /> 400
<br /> 06/18/97 4356 -3253 22,100 959 2,090 91 2,740 <20 9
<br /> 09/16/97 4504 -3401 13,000 1,370 680 900
<br /> 1,580 <400 <5
<br /> 12/t0/9712 4056 -2953 1,310 17 5 <03 269 965 05<10
<br /> 03/18/98 3661 -2558 3,020 243 95
<br /> <10 271 <20
<br /> 481 1,290 726 1,079 <20 <20
<br /> 06/24/98 36 60 -25 57 7.300 1 0 <1 0 540 <2 4 <t 0
<br /> 09/16/9814 3906 -2803 2,080 41 < <2 0 <t 0 �
<br /> 12/22/98 3247 -2l 44 505 <1 0 <1 0
<br /> <1 0 <2 0
<br /> <1 0 <1 0 <1 0 <2 0 <2 0 <1 0
<br /> 03/18/99 3068 -1965 790 <1 p <2 0 <20 <1 0
<br /> 06/17/99 3502 -2399 368 <1 0 <1 0
<br /> 4 0 <1 0 <1 0 49 <2 0 <1 0
<br /> 09/16/99 36 66 -25 63 67 <1 0 <2 0 <2 0 400
<br /> 12/13/99 3236 -2t 33 <50 <1 0 <1 0
<br /> 06/15/00 3552 -2449
<br /> <50 1 1 <1 0 <1 0 <2 0 <2 0 78
<br /> -24 30 <50 <1 <1 <1 <2 <2 170
<br /> 09/19/00 35 33 <2 <1
<br /> 12/13/00 3224 -2121 <50 <1 <1 <1 <2
<br /> 5098 As1#280046
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