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Table 1
<br /> Groundwater Monitoring Data and Analytical Results
<br /> Tosco(Former BP Oil)Service Station#1 1195
<br /> 16500 South I-5
<br /> Lathrop,California
<br /> WELL IDI DATE DTW S.I. GWE TPH-D TPH-G B T E X MTBE
<br /> TOC*(ft.) (fit) (Ugs) (MS0 (PPB) (Ppb) (ppb) (Ppb) (Ppb) (ppb) (PPb)
<br /> MW-3 03/25/97 7.18 8.0-23.0 2,61 -- 5,300 16 ND' ND3 ND3 7,400
<br /> (cont) (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 -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 ND3 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 2,89014,680'
<br /> 08/11/99 10.27 -0.48 -- ND3 ND3 ND3 29.9 ND3 47,300161,000'
<br /> 11/19/99 10.29 -0.50 -- 3,800" 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 ND3 1°2,48012,410'
<br /> 08/28/00 9.81 -0.02 - ND3 ND3 ND3 ND3 ND3 83,800178,600'
<br /> 11/13/00 10.21 -0.42 -- ND3 ND3 ND3 ND3 ND3 55,100/45,800'
<br /> 02/09/01 9.95 -0.16 -- ND3 ND3 ND3 ND3 ND3 8,400/13,700'
<br /> 05/11/01 9.26 0.53 ND3 ND3 ND3 ND3 ND3 7,47017,930'
<br /> 08/10/01 10.28 -0.49 -- 110" <0.50 1.6 3.0 3.0 2,60015,200'
<br /> 11/21/01 10.81 -1.02 - X250 <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 5,200/3,800'
<br /> 05/23/0213 9.74 0.05 <1,300 <13 <13 21 <25 --/2,600'
<br /> 08/15/02'' 10.19 -0.40 -- 75014 <5.0 <5.0 <5.0 <10 820
<br /> 11/18-191021' 10.62 -0.83 -- <500 <5.0 <5.0 <5.0 <10 1,300
<br /> MW-4
<br /> 9.03 12/21/925'' 11.06 9.5-24.5 -2.03 ND 10,000 ND3 3.5 300 540 --
<br /> h
<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 --f-
<br /> I195.x1s1#180175 A8'ir1119/02
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