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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 P! Elevation Water Elevation TPFIg TPHd Benzene Toluene benzene Xylenes MtBE DO
<br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (ugll-) (pg/L) (pg/L) (pg/L) (pg1L) Wg1L) (p91L) (mg/L) Comments
<br /> MW-3 1/3/2002 -- 4780 -- 25,000 -- ND<1 0 ND<1 0 ND<1 0 ND<i 0 27,000 -
<br /> 4/11/2002 - 1974 4522 -2548 14,000 - ND<1 0 ND<1 0 ND<1 0 ND<1 0 18,000 --
<br /> 7/31/2002 -- 1974 4977 -3003 1 800 - ND<1 ND<1 ND<1 ND<i 30,000 139
<br /> 10/11/2002 - 1974 5192 -3218 26,000 - ND<100 150 ND<100 540 44,000 -
<br /> 01/30/2003 P 2324 4860 -2536 <50,000 - <500 <500 <500 <500 22,000• -
<br /> 04/10/2003 P 2324 4704 -2380 <5 000 - <50 <50 <50 <50 25,000* -
<br /> 07/11/2003 P 2324 5012 -2688 5,000 R - <500 <500 <500 <500 10,000* -
<br /> 10/17/2003 P 2324 5526 -3202 9,700 R - <500 <500 <500 <500 25,000* -
<br /> 01/26/2004 P 2324 5079 -2755 3,600 - <250 <250 <250 <250 17,000' -
<br /> 04/27/2004 P 2324 5016 -2692 3,600 - <50 <50 <50 <50 6,300*J -
<br /> 07/01/2004 P 2324 5437 -31 13 2,700 - <120 <120 <120 <120 8,800-
<br /> 10/04/2004 P 2324 5822 -3498 780 - <50 <50 <50 <50 2,700* -
<br /> 01/12/2005 P 2324 5367 -3043 1,500 -- <100 <100 <100 <100 4,200* 301
<br /> 05/11/2005 P 2324 5008 -2684 <2 500 -- <25 <25 <25 <25 2,000* -
<br /> 07/19/2005 P 1 2324 5245 -2921 <250 - <25 1 <25 <2 5 <2 5 68* --
<br /> MW-4 1/3/2002 - - 4898 - 6,300 -- ND<1 0 ND<1 0 ND<1 0 ND<1 0 9,400 -
<br /> 4/11/2002 - 2089 4646 -2557 22,000 - ND<1 0 ND<1 0 ND<1 0 ND<1 0 11,000 -
<br /> 7/31/2002 - 2089 51 22 -3033 N0<50 - ND<l ND<i ND<1 ND<1 1,900 158
<br /> 10/11/2002 - 2089 5312 -3223 ND<2500 - ND<25 ND<25 ND<25 N0<25 9,000 -
<br /> 01/30/2003 P 2434 4977 -2543 <50,000 - <500 UJ <500 UJ <500 UJ <500 UJ 14,000*J -
<br /> 04/10/2003 P 2434 4820 -2386 8,600 - <50 <50 <50 <50 17,000' -
<br /> 07/11/2003 P 2434 5162 -2728 910 - <50 <50 <50 <50 2,200* 2 0
<br /> 10/17/2003 P 2434 5632 -3198 15,000 R - <500 <500 <500 <500 37,000' -
<br /> 01/26/2004 P 1 2434 5189 -2755 6,200 -- <250 <250 <250 <250 22,000* --
<br /> 04/27/2004 P 2434 51 56 -2722 820 - <25 <25 <25 64 810* --
<br /> 07/01/2004 P 2434 5571 -31 37 7,900 - <500 <500 <500 <500 24,000* --
<br /> 10/04/2004 P 2434 5977 -3543 7,400 -- <250 <250 <250 <250 17,000* --
<br /> 01/12/2005 P 2434 5467 -3033 7,000 - <1,000 <1,000 <1,000 <1,000 23 000* 323
<br /> 05111/2005 P 24 34 51 25 -2691 <25 000 -- <250 <250 <250 <250 12,000* --
<br /> 0711912005 P 1 24 34 5451 .3017 <25,000 - <250 <250 <250 <250 11,000*
<br /> MW-5 10411012003 P 1 2291 4661 -2370 900 - <50 <50 <5 0 <50 1,900* 1 -
<br /> 07/11/2003 P_j 2291 1 5043 1 -2752 1,100 R -- <50 <50 <50 <50 3000' 210
<br /> Report Date August 31,2005 Page 2 of 4
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