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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 /> TOG Depth to Water Level Ethyl- Total
<br /> Well Date P/ Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO
<br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pg1L) (pg1L) (pglL) (fig1L) (pg/L) (pg/L) (pgll-) (mg1L) Comments
<br /> MW-3 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 /> 04l2712004 P 2324 5016 -2692 3,600 – <50 <50 <50 <50 6 300*J --
<br /> 07/01/2004 P 2324 5437 -3113 2,700 - <120 <120 <120 <120 8 800* –
<br /> 10104/2004 P 2324 5822 -3498 780 – <50 <50 <50 <50 2,700-
<br /> 101112120051 P 1 2324 1 5367 -3043 1,500 – <100 <100 <100 <100 4,200' 301
<br /> MW-4 1/3/2002 – 4898 -- 6,300 – ND<1 0 ND<1 0 ND<i 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 5122 -3033 ND<50 -- ND<1 N0<1 ND<1 ND<1 1,900 158
<br /> 10/11/2002 2089 5312 -3223 ND<2500 – ND<25 N0<25 ND<25 ND<25 9,000 –
<br /> 01/30/2003 P 2434 497 7 -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 51 62 -2728 910 -- <50 <50 <50 <50 2,200* 20
<br /> 10/17/2003 P 2434 5632 -31 98 15,000 R – <500 <500 <500 <500 37,000' –
<br /> 01/26/2004 P 2434 5189 -27 55 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 55 71 -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 -3033-1. 7,000 1 – <1,000 1 <1,000 <1,000 <1,000 23,000' 3 23
<br /> MW-5 04/10/2003 P 2291 4661 -2370 900 – <5 0 <50 <50 <5 0 1,900* –
<br /> 07/11/2003 P 2291 5043 -27 52 1 100 R -- <50 <50 <50 <50 3,000' 21
<br /> 10/V12003 P 2291 5490 -3199 1,600 R – <50 <50 <50 <50 3,600* –
<br /> 01/26/2004 P 2291 5038 -2747 1,300 -- <100 <100 <100 <100 4,300-
<br /> 04/2712004 P 2291 5008 -2717 3,100 – <50 <50 <50 <50 4,600-
<br /> 07/0112004 P 2291 5441 -3150 1,400 -- <50 <50 <50 <50 4 900* -
<br /> 10/04/2004 P 2291 5837 -3546 1 900 – <50 <50 <50 <50 4,800- --
<br /> 101112/20051 P 1 22 91 1 5308 -3017 2,000 – <100 <100 <100 <100 6,200' 299
<br /> MW-6 104110/20031 P 1 2207 1 4595 1 -23 88 1 <50 1 - <050 1 <0 50 1 <0 50 1 <0 50 1 <2 5 1 –
<br /> �0711V20031 P 1 2207 1 4965 1 -27.58 <50 – <050 <0 50 1 <0 50 <0 50 <0 50* 34
<br /> Report Date March 14,2005 Page 2 of 4
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