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Table 2. Summary of Groundwater Elevations,Gradient and Bearing-Water Table Wells Georae's Service 1600 Durham Ferry Road Tracy,California Project No.425.2 Date Elevation of Groundwater Well Data W-1 MW-2* MW-3 W-4 MW-5 M -6 W-7 -8 L DTW Gradient Gredi n ' 9.39 99.2 - - - WN *' ** 05/03/95 73.95 73.85 73.87 73.89 0.0017 02129196 72.85 7 L67 72.78 - - - 72.43 0.0257 ' 03/19196 72.69 71.36 72.62 - = 72.22 0.0289 04/22/96 73.77 72.46 73.69 73.31 0.0250 05/18/96 75.47 74.29 75.38 75.05 0.0223 06/28/96 75.23 74.03 75.20 - 74.82 0.0233 07/24/96 75.79 74.61 75.77 - - 75.39 00243 09/11/96 75.14 FP 75.11 _ - - 75.13 - Ol/17/97 73.67 FP 73.60 73.64 05/05/97 75.43 FP 75.43 75.50 1 76.08 1 75.15 75.25 75.42 75.47 N20-W 0.0024 ' 08/25/977T1- 75.21 75.28 74.94 75.14 N22-W 0.0026 09/19/97 74.35 74.24 74.29 1 74.40 1 74.26 1 74.10 1 74.15 1 74.27 1 74.26 1 N04-W 0.0020 02/24/98 76.06 FP 76.06 1 76.09 1 75.99 J 75.91 76.01 1 76.08 1 76.03 N020W 0.0012 05/29/98 73.90 73.78 73.82 73.93 73.84 73.71 73.71 73.81 73.82 1 N29-E 0.0019 11/13/98 73.45 FP 73.38 73.48 73.40 73.29 73.26 73.36 73.37 N39-E 0.0017 04/28/99 72.73 71.91 72.65 72.76 72.70 72.55 72.58 72.65 72.66 NVE 0.0017 09/01/99 74.44 74.20 1 74.42 74.49 74.34 74.16 74.25 74.39 74.36 N1 PE 0.0023 ' 12/22/99 72.64 73.20 72.57 72.67 72.60 NIA 72.48 72.55 72.59 - N57-E 0.0015 03/31/00 72.38 71.27 72.29 72.40 1 72.35 72.29 72.23 72.28 72.32 N59-F- 0.0016 06/20/00 73.75 72.97 73.71 73.79 1 73.66 73.50 73.55 73.65 73.69 N180E 0.0021 09/20/00 72.84 1 71.98 72.79 72.90 1 72.80 72.64 72.68 72.76 1 72.80 1 N32eE 0.0021 12/27/00 72.11 1 71.26 72.03 72.13 72.07 1 71.91 71.96 1 72.03 1 72.06 1 1 N34-E 0.0019 03/06/01 72.04 71.19 71.98 72.06 72.02 72.65 71.91 71.99 72.00 S27°E 0.0044 06/20101 72.06 71.46 71.98 72.09 72.00 1 72.14 71.84 71.95 71.99 - N530E 0.0015 49/07/01 72.32 71.84 1 72.27 72.35 72.14 1 72.14 72.12 72.22 1 72.24 N08°W 0.0017 12/03/01 71.76 71.00 1 71.70 1 71.79 1 71.60 1 72.10 1 71.63 1 71.69 1 71.70 1 N480E 0.0010 Wells Rs s ed Dec.2t 2001 In swordence with SWRC8 Geotrocker Requirements j Date Elevation of Groundwater I Well Data ' MW-1 MW-2 1 MW3 MW-4 1 MW-5 MWS I MW-7 I MW-8 I AMSI I DTW I Gradient Gradient 85.84 85.63 1 85.83'1 86.45 1 85.63 1 85.46 85.57 1 85.44 1 Avg. Av Bearin ** Slope** 12/21/01 73.99 73.62 73.97 74.02 73.95 DRY 73.84 73.90 73.95 11.87 N22eE 0.0011 02/22/02 73.80 73.40 73.78 73.82 73.77 7411 73.67 .73.72 73.81 11.97 N61°E 0.001I 06/05/02 73.87 73.34 73.85 73.90 73.82 73.70 73.79 73.82 12.02 N21°E 0.0014 09/11/02 73.53 72.87 73.55 73.56 73.48 73.84 73.38 73.46 73.49 12.27 N17aE 0.0013 12/26/02 73.67 72.62 73.66 73.68 1 73.61 - 1 73.55 73.59 73.63 12.29 N05-E 0.0009 ' 03/21/03 73.51 72.34 73.35 73.50 1 73.34-1- - 73.35 73.31 73.39 12.53 N85DE 0.0021 06/06/03 73.06 72.05 73.06 73.09 1 73.01 1 73.02 1 72.91 72.97 73.02 12.84 N07eE 0.0012 09/05/03 73.26 73.26 73.17 73.20 1 73.11 1 73.98 1 73.01 73.09 1 73.26 12.47 N05*E 0.0013 Summary of Groundwater Elevations,Gradient and Bearina-Zone A 01/03/04 73.24 1 73.29 1 73.24 1 73.28 73.22 73.18 73.13 73.18 1 73.21 12.51 N21M 0.0010 04/27/04 73.87 1 72.68 1 73.91 1 73.91 73.80 73.68 73.75 73.84 73.82 12.05 N14OW 0.0013 ' 07123/04 73.20 1 72.28 1 73.22 1 73.23 73.13 73.04 73.05 73.12 73.14 12.70 N30E**** 0.0015*** 11/03/04 73.06 1 72.19L 73.06 1 73.08 1 73.03 72.96 72.95 72.99 73.02 12.82 N220E**** 0.0001*** historical Averages= 73.58 12.32 N23.5M 0.0013 ' FP-Floating product in well.unable to Collect data. •-MW-2 often eofnaind free floating product.Orvetore Influencing water depths. ••an tient determined frown MW-3.MW4 and MW-6 front 515M to current.except for 12/22/99 and 12/21/01 in which MW-3.MW-4 and MW-7 were used far the eakvlation MWO1 computer eottours used far calculations. MW-3.MW-4 anti MW-7 uwd for calculation from fi102R12 to preaesn(except 3121103:MW-3.4 and 8 and 4121106 MW-l.3 OW 7) Note: Groundwater Elevations prior to 12118!87 have been nofmallzed to TOC3 for cornpanttive purposes. •••• Calculated using computer generated countour gradient reap ' Gm4gira1rc4xlua"c tlfu/law