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i ' TABLE 4
<br /> GROUNDWATER ANALYTICAL DATA
<br /> Knowles-Roek
<br /> ' Stockton,Cahforma
<br /> • Page ll of 13
<br /> (in parts per billion)
<br /> Well Date TPHg Benzene Toluene Ethylbenzene Xylenes MTBE
<br /> MW-16A 1/30/03 30,000 9,900 27 82 60 2,500
<br /> 2/19/03 34,000 6,800 23 49 42 2,900
<br /> MW-16B 1130103 33,000 1,500 4,600 690 3,700 170
<br /> '
<br /> 2/19/03T 31,000 1,300 3,100 120 3,300 260
<br /> VW-1 2125/98 37,000 3,200 7,300 1,400 9,200 <5 0
<br /> 212100 180,000 17,000 22,000 2,200 13,000 <50
<br /> ' 5/11/00 180,000 22,000 35,000 2,500 15,000 <500
<br /> 8117/00 120,000 14,000 19,000 1,500 9,000 <250
<br /> 11/21/00 1 260,000 22,000 36,000 2,700 17,000 <400
<br /> 3/8/01 240,000 23,000 44,000 3,300 18,000 <400
<br /> 5/25/01 230,000 24,000 42,000 3,100 19,000 <200
<br /> 8130/01 200,000 22,000 36,000 2,700 18,000 <200
<br /> ' 1216101
<br /> Not Sampled
<br /> 2120/02
<br /> 5/23/02 210,000 23,000 39,000 3,100 17,000 <1,000
<br /> ' 8/27/02 110,000 10,000 18,000 1,300 9,300 <1,000
<br /> 11/13/02 Not Sampled
<br /> 2/21103 260,000 18,000 30,000 3,100 18,000 <200
<br /> ' . VW-2 8117/00 7,400 20 69 87 990 <100
<br /> 11/21100 19,000 46 110 180 2,200 <40
<br /> 3/8/01 14,000 64 97 200 4800 <40
<br /> ' 5/24/01 23,000 73 240 400 4,200 <20
<br /> 8130/01 Not Sampled
<br /> 12/7/01 39,000 150 130 410 5,400 490
<br /> '
<br /> 2/21/02 20,000 120 110 330 3,200 <40
<br /> 5/23/02 20,000 110 170 320 3,900 <40
<br /> 11/13/02
<br /> ' Not Sampled
<br /> 2/19/03
<br /> VW-3 8/26/02 Not Sampled
<br /> 11/18/97 -- -- -- -- -- <20
<br /> ' 2125/98 5,800 200 370 150 1,400 <5 0
<br /> 2/2/00 2,100 92 15 13 40 <5 0
<br /> 5/11/00 850 61 15 47 12 <5 0
<br /> 8/17100 210 09 06 12 45 <50
<br /> 11/20/00 2,400 110 58 85 190 <5 0
<br /> 3/8/01 2,300 77 63 110 79 <10
<br /> ' 5/25/01 9,900 75 73 280 760 <2 0
<br /> 8130/01 4,900 45 12 79 230 <4 0
<br /> 1216/01 Not Sampled
<br /> ' 2121102 3,200 120 65 1 41 120 <2 0
<br /> 5/23/02 Not Sampled
<br /> 8/26/02
<br /> 11/14/02 3,600 97 74 36 110 <2 0
<br /> 2112LJ 6,000 290 54 31 59 <10
<br />
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