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✓ Groundwater Monitoring Data and Analytical Results
<br /> Tosco (Former BP Oil) SS #11195
<br /> 16500 South I-5
<br /> Lathrop, California
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<br /> MW-3 (D) 12/08/94 -- -- 460 0.7 1.1 ND 5.9 --
<br /> (cont) 02/21/95 9.11 0.68 -- 4,900 6.4 ND3 370 400
<br /> 06/09/95 8.59 1.20 -- -- -- -- -- '-
<br /> 08/31/95 10.46 -0.67 -- 5,500 11 ND3 890 460 4,300
<br /> 11/02/95 11.05 -1.26 -- -- -- -- --
<br /> 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 ND3 ND3 ND3 7,400
<br /> (D) 03/25/97 -- -- - 5,400 ND3 NDS 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 -0.35 -- 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 1,D3 360 100 78,000
<br /> (D) 09/03/98 -- -- -- 66,000 ND3 ND3 350 100 73,000
<br /> 12/23/98 9.98 -0.19 62,000 4.2 ND3 2I0 5.1 77,000
<br /> 12/31/98 INACCESSIBLE-PAVED OVER -- -- -- -- --
<br /> 03/22/99 8.60 1.19 -- 12,000 ND3 ND3 ND3 ND 12,000
<br /> 15.10 09/15/98 9.50 5.60 -- 4,100 ND 11 370 50 23,000'
<br /> 9.79 05/20/99 8.61 1.18 -- 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 /> 11/19/99 10.29 -0.50 -- 3,8008 46 ND3 73 380 32,000138,0001
<br /> 02/22/00 8.01 1.78 -- 3128 6.34 ND 3.72 12.2 3,49013,5101
<br /> MW-4
<br /> 9.03 12/21/925,' 11.06 -2.03 ND 10,000 ND3 3.5 300 540 --
<br /> 05/17/93 8.25 0.78 -- 6,600 7.7 3.3 840 1,000 --
<br /> 09/15/93 9.64 -0.61 -- 16,000 ND3 ND3 1,000 1,300 --
<br /> (D) 09/15/93 - - -- 16,000 18 ND3 1,000 1,200 --
<br /> 01/12/94 10.38 -1.35 -- 3,200 6.2 1.4 150 112 -
<br /> 05/12/94 9.70 -0.67 -- 160 ND 2.5 0.7 ND --
<br /> 10/07/94 10.46 -1.43 -- 13,000 11 2.1 1,100 33 --
<br /> 12/08/94 10.62 -1.59 -- 5,400 20 27 490 54 --
<br /> 11195.xlsl#180175 3 As of 02/22/00
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