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<br /> Groundwater Monitoring Data and Analytical Results
<br /> Tosco(Former BP Oil)Service Station#11195
<br /> 16500 South I-5
<br /> Lathrop,California
<br /> :-11Ag
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<br /> MW-3 11/02/95 11.05 8.0-23.0 -1.26 -- - - - - -- --
<br /> (cont} 02/28/96 7.66 2.13 -- 1,600 3.2 ND3 270 227 1,200
<br /> (D) 02/28/96 -- -- -- 1,400 2.8 ND3 240 204 1,100
<br /> 09/05/96 9.99 -0.20 -- 3,700 ND3 ND3 420 ND3 2,100
<br /> 03/25/97 7.18 2.61 -- 5,300 16 ND' ND3 ND3 7,400
<br /> (D) 03/25/97 - -- - 5,400 ND3 ND3 ND3 ND3 7,200
<br /> 10/15/97 11.32 -1.53 - 1,500 9.1 2.3 320 73.5 8,700
<br /> (D) 10/15/97 -- - - 1,400 8.4 1.5 250 57 7,900
<br /> 01/15/98 10.14 -035 - 24,000 20 ND3 ND3 ND3 21,000
<br /> 05/07/98 7.10 2.69 - - - -- - - --
<br /> 09/03/98 9.32 0.47 -- 81,000 ND3 ND3 360 100 78,000
<br /> (D) 09/03/98 - -- -- 66,000 ND3 ND3 350 100 73,000
<br /> 12123/98 9.98 -0.19 -- 62,000 4.2 ND3 210 5.1 77,000
<br /> 12J31198 INACCESSIBLE-PAVED OVER -- - -- - - -- --
<br /> 03/22/99 8.60 1.19 - 12,000 ND3 ND3 ND3 ND 12,000
<br /> 15.10 09/15198 9.50 5.60 - 4,100 ND 11 370 50 23,000'
<br /> 9-79 05/20/99 8.61 ].18 -- ND ND ND ND ND 2,890/4,680'
<br /> 08/11/99 10.27 -0.48 - ND3 ND3 ND3 29.9 ND3 47,300/61,000'
<br /> ]1/19199 10.29 -0-50 - 3,8006 46 ND3 73 380 32,000/38,000'
<br /> 02/22/00 8.01. 1.78 - 312$ 6.34 ND 3.72 12.2 3,49013,510'
<br /> 05/05/00 8.31 1.48 -- ND3 ND3 ND3 ND3 ND' 7°2,48012,410'
<br /> 08/28/00 9.81 -0.02 -- ND3 ND3 ND3 ND3 ND3 83,800/78,6001
<br /> 11/13/00 10.21 -0.42 -- ND3 ND3 ND3 ND3 ND3 55,100145,800'
<br /> 02/09/01 9.95 -0.16 -- ND3 ND3 ND3 ND3 ND3 8,400/13,700'
<br /> 051]1101 9.26 0.53 -- ND3 ND3 ND3 ND3 ND3 7,47017,930'
<br /> 08110/0I 10.28 -0-49 - 1108 <0.50 1.6 3.0 3.0 2,60015,200'
<br /> 11/21/01 10.81 -1.02 -- <250 <2.5 <2.5 <2.5 <2.5 3,60015,500'
<br /> 02/07/02 8.81 0.98 - <1,000 <10 <10 <10 <10 5,20013,800'
<br /> 05/23/0213 9.74 0.05 - <1,300 <13 <13 21 <25 -42,600'
<br /> 14.37 08115/02"," 10.19 4.18 - 75014 <5.0 <5.0 <5.0 <10 820
<br /> 11118-1910216''6 10.62 3.75 -- <500 <5.0 X5.0 <5.0 <10 1,300
<br /> 02/13-14/0316''6 9.86 4.51 -- <500 <5.0 <5.0 <5,0 <10 1,500
<br /> 05/12-1310316 10.04 4-33 - <1,000 <10 <10 <10 QO 1,300
<br /> 11195.x1s/9180175 4 As of 05/13/03
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