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Table 1
<br /> Groundwater Elevation and Analytical Data
<br /> Former BP Retail Site No 11191
<br /> 1469 E Hammer Lane, Stockton, CA
<br /> TOC Depth to Water Level Ethyl- Total
<br /> Well Date TNP (fqeetmsl)
<br /> evation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO
<br /> Number Sampled (feet bgs) (feet msl) WWL) (pg/L) Uug/L) (E,g/L) (u91L) (p9/L) UAYL) (mg/L) Comments
<br /> MW-1 1/3/2002 - 4740 -- - --
<br /> 1/23/2002 4663 -- 110 ND<1 0 ND<1 Q ND<1 0 1 110 -
<br /> 4/11/2002 1917 4490 -2573 70 ND<1 0 ND<1 0 ND<1 0 ND<1 0 37 -
<br /> 7/31/2002 1917 4941 3024 230 NDa1 ND<1 ND<1 ND<1 9,300 184
<br /> 10/11/2002 -- 1917 5142 -3225 10 000 42 530 250 190 10 000 -
<br /> 01/30/2003 P 2272 4803 2531 <12,000 - <120 UJ <120 UJ <120 UJ <120 UJ 7,600-J
<br /> 04/10/2003 P 2272 4647 -2375 2,700 <10 <10 <10 <10 4,900` --
<br /> 07/11/2003 P 1 2272 4978 -2706 4,200 R <500 <500 <500 1,000 9,900' 39 '
<br /> 10/17/2003 P 2272 5492 -3220 4,500 R <250 <250 <250 300 13,000'
<br /> 01/26/2004 P 22 72 50 28 -27 56 3,000 <100 <100 <100 <100 10,000*
<br /> 04/27/2004 P 2272 4976 2704 8,300 - <250 <250 <250 <250 11,000-
<br /> 07/01/2004 P 2272 5416 -3144 3,700 <120 <120 <120 <120 12,000-
<br /> 10104/2004 P 2272 5833 3561 3,100 <250 <250 <250 <250 9 900*
<br /> 01/12/2005 P 22.72 5298 -3026 3,000 <250 <250 <250 <250 9,400- 1 91
<br /> 05/11/2005 P 2272 4951 2679 <10,000 <100 <100 <100 <100 4,800` --
<br /> 07/19/2005 P 2272 5342 3070 <5,000 <50 <50 <50 <50 3,700-
<br /> 10/25/2005 P 22 72 5309 -30 37 53 - <0 50 <0 50 <0 50 <0 50 45`
<br /> I
<br /> MW-2 1/3/2002 - 4860 1,800 ND<1 0 ND<1 0 ND<1 0 ND<i 0 1,900
<br /> 1/10/2002 -- 4842 1,400 ND<10 ND<10 ND<10 ND<10 1,800
<br /> 4/11/2002 -- 2047 4600 -2553 1,700 ND<1 0 ND<1 0 ND<1 0 NDO 0 1,300
<br /> 7/31/2002 - 2047- 5077 -3030 ND<50 ND<1 ND<1 ND<l ND<l 4,500 99
<br /> 10/11/20021 2047 5275 -3228 9,200 ND<50 250 93 930 11,000 -
<br /> 01/30/2003 P 2393 4939 -2546 5,300 J <50 UJ <50 UJ <50 UJ <50 UJ 4,900*J -
<br /> 04/1012003 P 23 93 47 79 -23 86 2,000 <10 <10 <10 <10 3,900-J --
<br /> 07/11/2003 P 2393 5107 2714 650 R <50 <50 <50 <50 1,600` 14
<br /> 10/17/2003 P 2393 5615 -3222 12,000 <250 <250 <250 <250 22,000-
<br /> 01126/2004 P 2393 5158 -2765 270 <100 <100 <100 <100 980` -
<br /> 04/27/20041 P 2393 5099 2706 1,700 <50 <50 <50 <50 2,800-
<br /> 07/01/2004 P 2393 5527 -3134 4 100 <250 X250 <250 <250 15,000-
<br /> 10/04/2004 P 2393 5952 -3559 520 <25 <25 <25 <25 1,500* --
<br /> 01/12/2005 P 2393 5432 -3039 2,800 <250 <250 <250 <250 9,800* 273
<br /> FEE05/11/2005 P 2393 5086 -2693 <1,200 <12 <12 <12 <12 720` --
<br /> 07/19/2005 P 2393 5361 29 68 <50D <5 0 <5 0 <5 D <5 0 720`
<br /> Report Date November 29,2005 Page t of 5
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