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Table 3: Summary of Groundwater Elevations,Bearings and Gradients-Intermediate and Deep Wells Georee's Service 1600 Durham Ferry Road ' Tracy,California Project No.425.2 Date Elevation of Groundwater Intermediate Well Data ' MW-2X MW-101 MW-102 MW-105 MW-106 MW-107 MW-2011MW-202 AMSL DTW Gradient Gradient 98.96 1 1 1 1 1 Avg. Avg. Bearing" Slope" TOCII 1 1 83.08 1 83.12 1 1 83.27 1 1 84.03 (ft) (ft/ft) 05/05/97 - 75.27 - - - - - ' 08/25/97 - - 74.95 09/19/97 74.14 02/24/98 75.82 - - - 05/29/98 = = 73.74 07/14l98 74.06 72.76 1 73.72 73.41 11/13/98 73.31 73.39 73.20 73.99 73.30 N60°E 0,0018 04!28!99 - - 72.59 72.68 - 72.50 - 73.02 72.59 NVE 0.0019 ' 09/01/99 = - 74.15 74.33 = 74.02 74.67 74.17 = N840E 0.0034 12/22/99 72.50 72.58 72.40 73.09 72.49 N63°E 0.0016 03/31/00 - 72.24 72.34 - 72.16 72.78 72.25 N800E 0.0018 06/20/00 73,50 73.67 - 73.38 - 73.75 73.52 N850E 0.0031 09/20/00 = = 71.67 72.79 j 72.56 73.14 72.34 S440E 0.0270 12/27/00 71.98 72.06 71.89 72.61 71.98 N69°E 0.0016 03/06/01 - 71.91 72.01 71.85 72.45 71.92 N880E 0.0018 06/20/01 = = 71.87 72.00 71.75 = 72.15 71.87 - N770E 0.0025 09/07/0I 71.60 72.27 72.03 72.82 71.97 S480E 0.0160 12103101 - - 71.76 71.73 71.56 72.69 71.68 N6-W 0.0033 Wells Resurveyed 12/21/01 in accordance SWRCB Geotracker Reqnirements Date Elevation of Groundwater Intermediate Well Data MW-2X MW-101 MW-102 MW-105 MW-106 MW-107 MW-201 MW-202 AMSL DTW Gradient Gradient roc 86.03 86.40 85.30 85.47 86.19 85.61 8637 86.37 Avg. Avg. Bearing" Sl o a** toS 53.53 53.90 40.30 52.97 54.19 38.61 7.37 7.37 (ft) (ft/ft) bas 5103 51.40 37.80 50.47 51`69 36.11 4.87 4.87 12J21/01 73.86 73.95 73.77 74.69 73.86 11.60 N720B 0.0017 02/22/02 73.67 73.76 - 73.61 - 74.43 73.68 11.78 N870E 0.0016 06/05/02 = = 73.69 73.81 - 73.59 - 74.29 73.70 11.76 N800B 0.0023 09/11/02 73.36 73.48 73.25 74.22 73.36 12.10 N75DE 0.0023 12/26/02 73.45 73.63 73.48 74.38 73.52 11.94 S62-E 0.0037 03121!03 - - 73.32 73.35 - 73.21 - 73.99 73.29 12.17 N38°E 0.0014 ' 06/06/03 - 72.92 73.01 = 72.82 - 73.56 72.92 12.54 N70°E 0.0018 09/05/03 73.03 1 73.08 72.89 73.85 73.00 12.46 N36-E 0,0018 01/03/04 73.38 73.41 73.15 73.23 73.34 73.06 73.34 73.99 73.26 12.57 N700E 0.0037 04/27/04 73.98 74.03 73.66 73.80 73.80 73.58 73.84 74.14 73.81 12.03 N890E 0.0025 07/23/04 73.30 73.35 73.02 73.13 73.26 72.93 73.21 73.68 See Tables 4,5,and 6 11/03/04 73.19 73.22 72.96 73.05 73.17 72.88 73.13 73.88 01/21/05 73.26 73.28 73.03 73.10 72.79 72.95 73.21 73.80 Historical Averages= 73.44 12.09 N72°E 17 0.0023 TOC2=Top of casing elevation surveyed on 5!9!97.MW-2 was used as benchmark elevation. TOO-Top of casing elevation surveyed on 12!18197 and 10/19/98 into USGS Benchmark T-933 **Gradient determined from MW-102,MW-105 and MW-107 ' Note: Groundwater Elevations prior to 12/18/97 have been normalized to TOC3 for comparative purposes. Gwr�afrufntalK 7/sn/sgm