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TABLE 4
<br /> GROUNDWATER ELEVATION AND ANALYTICAL SUMMARY
<br /> Parkinson's Hammer 1-5 Arco
<br /> 3250 West Hammer Lane, Stockton, California
<br /> Well Groundwater Ethyl- Total
<br /> Well Date Elevation Depth to Water Elevation GRO[4] Benzene Toluene benzene Xylenes MTBE
<br /> Number Collected (ft msl) (feet) (ft msl) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L)
<br /> MW-1 09/21/00 4.30 12.96 -8.66 25,700 1,820 503 1,450 582 28,300
<br /> 01/19/01 12.90 -8.60 2,250 178 10 155 244 34,200
<br /> 04/23/01 11.94 -7.64 19,000 1,780 208 1,480 1,600 39,500
<br /> 07/27/01 13.12 -8.82 13,000 1,700 98 1,100 730 40,000
<br /> 11/01/01 14.12 -9.82 14,000 1,100 20 980 470 24,000
<br /> 01/28/02 12.61 -8.31 8,700 1,100 <50 1,000 320 18,000
<br /> 04/23/02 12.70 -8.40 4,900 1,000 <3.0 940 210 17,000 4
<br /> [1] 07/29/02 5.25 13.70 -8.45 10,000 850 270 1,000 860 7,400
<br /> 10/07/02 14.54 -9.29 6,300 500 0.91 800 34 3,800
<br /> 01/02/03 13.98 -8.73 4,500 1,000 44 1,500 310 2,500
<br /> 04/03/03 13.72 -8.47 5,800 760 15 1,100 140 770
<br /> 07/21/03 . 14.34 -9.09 4,400 646 <0.50 930 82 230
<br /> 10/13/03 15.09 -9.84 4,600 700 <25 940 93 1,000
<br /> 01/12/04 14.43 -9.18 3,000 600 10 660 47 310
<br /> 06/22/04 14.19 -8.94 4,200 910 23. 280 17 220
<br /> 08/12/04 14.61 -9.36 1,106 86 15 16 <20 34
<br /> 10/21/04 14.89 -9.64 51400 780 99 720 940 52
<br /> 01/17/05 13.82 -8.57 3,900 750 30 180 140 <100
<br /> 04/18/05 12.46 -7.21 750 71 <5.0 36 <10 10
<br /> 07/18/05 13.13 -7.88 1,400 520 13 33 3.7 80
<br /> 10/17/05 14.01 -8.76 1,500 290 9.4 46 16 5.5
<br /> 01/16/06 12.81 -7.56 710 110 3.6 46 40 <5.0
<br /> 07/19/06 11.74 -6.49 840 230 <1.0[3] 28 1.1 <1.0[3]
<br /> 11/01/06 13.19 -7.94 2,400 130 <1.5[3] 25 12 6.6 �
<br /> 02/01/07 13.37 -8.12 2,400 81 1.2 22 7.5 3.0
<br /> 04/10/07 12.99 -7.74 2,100 63 1.6 36 11 3.0
<br /> 07/23/07 13.74 -8.49 1,700 46 <0.50 3.7 0.83 2.5
<br /> 10/22/07 13.98 -8.73 1,900 72 1.1 42 13 <1.0[3]
<br /> [5] 01/28/08 6.63 12.98 -6.35 2,700 53 1.5 87 58.2 5.7
<br /> 04/28/08 12.80 -6.17 1,700 240 <1.0[3] 5.4 1.9 3.2
<br /> 07/28/08 13.90 -7.27 290 11 <0.50 <0.50 <0.50 0.54
<br /> August 2008 Workplan---Table 4,Table 5.xls Page l of 6 S TRA TUS
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