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TABLE 4
<br /> t GROUNDWATER ANALYTICAL DATA
<br /> Knowles-Rock
<br /> ' Stockton,Califonna
<br /> Page 4 of 13
<br /> (in parts per bilhon)
<br /> Well Date TFUg Benzene Toluene Ethylbenzene Xylenes MTBE
<br /> F
<br /> ' MW-5 5/16/95 12,000 1,400 42 890
<br /> 11/9/95 20,000 2,700 <25 1,900 1600
<br /> 2/9/95 14,000 1,400 <10 1,800 420 --
<br /> 4/25/96 19,000 1,700 43 1,500 750 =_
<br /> 8/8/96 22,000 2,600 22 900 850
<br /> 11/6/96 25,000 3,200 20 1,300 1,200 --
<br /> ' 2/6/97 19,000 2,600 180 1,100 1,200 �=
<br /> 5/8/97 17,000 2,200 140 1,600 1,700
<br /> 7/23197 20,000 3,800 51 1,200 1,700 <40
<br /> ' 11/20/97 20,000 3,800 42 1,200 1,500 <5 0
<br /> 2/27/98 34,000 5,400 400 1,400 2,200 <30
<br /> 5/6/98 38,000 5,300 450 1,400 2,400 --
<br /> ' 8/12/98 29,000 69600 230 1,600 2,400 `-
<br /> 11/11/98 19,000 3,600 <40 990 2,000
<br /> 2112/99 20,000 3,900 54 1,100 1,400 --
<br /> ' 5/4/99 21,000 3,100 32 980 1,200 =_
<br /> 8/5/99 23,000 3,400 56 840 950
<br /> 11/18/99 18,000 2,800 71 790 890 <50
<br /> lie
<br /> 2/4100 17,000 2,400 31 490 880 <5 0
<br /> 5/9/00 16,000 2,200 27 710 1,200 <5 0
<br /> 8116100 32,000 3,900 76 1,600 3,200 <25
<br /> 11/21/00 32,000 2,600 120 1,000 1,500 <100
<br /> 3/8/01 22,000 1,800 81 1,100 1,500 <100
<br /> 5/24/01 25,000 2,800 97 1,500 1,700 <40
<br /> ' 8/30/01 21,000 1,800 180 940 1,400 <40
<br /> 1217101 17,000 2,200 270 770 1,100 <20
<br /> 2121102 11,000 1,400 150 580 790 <2 0
<br /> ' 5/22/02 28,000 3,300 360 1,300 2,000 <20
<br /> 8/27/02 36,000 4,000 480 1,200 2,200 <10
<br /> 11/13/02 7,500* 610 68 200 290 <20
<br /> ' 2/20/03 18,000 1,500 88 550 750 <20
<br /> MW-6 5/16195 440 47 18 18 10
<br /> 11/9/95 540 66 83 12 21 --
<br /> ' 2/8/95 520 <0 5 <0 5 <0 5 30 ==
<br /> 4/24196 950 43 43 38 29
<br /> 8/7/96 250 <0 5 <0 5 <0 5 <0 5 --
<br /> ' 11/5/96 270 78 <0 5 <0 5 <0 5 -=
<br /> 215/97 310 45 <05 <05 <05
<br /> 517197 240 68 <05 <05 <05 --
<br /> ' 7123197 140 1.2 <0 5 <0 5 <0 5 <5 0
<br /> 11/19/97 120 <0 5 <0 5 <0 5 1 <0 5 <5 0
<br /> 1
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