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' TABLE 4
<br /> GROUNDWATER ANALYTICAL DATA
<br /> Knowles-Rock
<br /> ' Stockton,California
<br /> Page 3 of 13
<br /> (in parts per billion)
<br /> Well Date TPHg Benzene Toluene Ethylbenzene Xylenes 114TBE
<br /> ' MW3 5/9/00 22,000 9,600 11 37 11 3,800
<br /> Cont'd 8/15/00 4,800 3,000 2.8 11 3.3 1,200
<br /> 11/22/00 369000 10,000 15 28 31 2,600
<br /> ' 3/8/01 169000 4,400 89 11 58 1,200
<br /> 5124101 27,000 11,000 17 31 13 3,800
<br /> 8/30101 12,000 3,500 62 10 69 2,000
<br /> ' 12/7/01 72,000 21,000 310 540 1,100 17,000
<br /> 2/21/02 30,000 15,000 310 170 150 15,000
<br /> 5/22/02 38,000 11,000 17 42 17 34,000
<br /> 8/27/02 36,000 12,000 19 47 49 24,000
<br /> 11/14/02 35,000* 12,000 21 45 31 5,300
<br /> 2/20/03 46,000 10,000 23 31 20 41,000
<br /> MW-4 5/16/95 <50 22 <0 5 <0 5 <0 5 --
<br /> 11/9/95 240 21 <0 5 <0 5 <0 5
<br /> 218/95 240 <0 5 <0 5 <0 5 29 --
<br /> 4/24/96 130 <0 5 <0 5 <0 5 <0 5 ==
<br /> 817196 210 <0 5 <0 5 <0 5 18
<br /> 11/5/96 480 <0 5 30 <0 5 <0 5 --
<br /> ' 215/97 560 76 <0 5 <0 5 <0 5 -_
<br /> 517197 260 58 <0 5 <0 5 <0 5
<br /> 7/22/97 970 360 <0 5 <0 5 <0 5 <5 0
<br /> '
<br /> 11/20/97 140,000 16,000 15,000 2,000 13,000 8,700
<br /> 12/16/97 150,000 20,000 16,000 2,300 15,000 14,000
<br /> 2127/98 10,000 1,200 42 110 580 890
<br /> 5/6/98 870 53 <0 5 62 10 85
<br /> 8/12/98 12,000 5,500 <0 5 260 950 600
<br /> 11/11/98 75,000 10,000 1,300 1,400 8,800 7,000
<br /> 2/11/99 19,000 7,400 130 380 1,300 1,700
<br /> 5/4199 24,000 11,000 90 600 1,600 3,400
<br /> 8/5/99 39,000 24,000 99 900 3,000 7,400
<br /> ' 11/18/99 68,000 40,000 2,400 2,000 8,100 4,000
<br /> 2/4/00 84,000 30,000 67 1,100 6,900 3,100
<br /> 519/00 88,000 30,000 <50 2,100 5,200 1,400
<br /> ' 8/16/00 160,000 39,000 84 3,100 6,500 1,600
<br /> 11/21/00 140,000 34,000 36 2,800 4,800 2,200
<br /> 3/8/01 95,000 27,000 29 2,500 2,500 1,500
<br /> 5/24/01 92,000 29,000 36 2,500 2,100 3,100
<br /> 8/30101 67,000 17,000 67 2,200 2,300 3,200
<br /> 1217101 58,000 17,000 120 1,000 1,700 8,300
<br /> '
<br /> 2/21/02 40,000 18,000 120 760 700 10,000
<br /> 5/22/02 35,000 8,900 <12 5 860 510 15,000
<br /> • 8/27/02 33,000 7,500 23 1,300 780 1 14,000
<br /> ' 11/14/02 39,000* 8,500 43 1,700 1,200 4,700
<br /> 2/21/03 37,000 6,500 28 750 750 5,300
<br /> 1
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