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1 i 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 1 MW-101 MW-102 MW-105 MW-106 MW-107 MW-201 MW-202 AMSL DTW Gradient Gradient 98.96 Avg. Avg. Bearing" S122e** roc 83.08 83.12 83.27 84.03 05/05/97 - 75.27 - - 08/25/97 74.95 - ' 09/19/97 - 74.14 - 02/24/98 1 75.82 1 1 - 11 1 - I I A - 05/29/98 - - 73.74 1 1 1 1 1 - - ,' 07/14/98 = - 1 74.06 = 72.76 = 73.72 73.41 - I - 11/13/98 1 73.31 1 73.39 73.20 73.99 73.30 MME 0.0018 04/28/99 - - 72.59 72.68 - 72.50 73.02 72.59. N76*E 0.4019 09/01/99 = 74.15 74.33 - 74.02 = 74.67 74.17 = NSOE 0.0034 . 12/22/99 72.50 72.58 72.40 73.09 72.49 N630E 0.0016 03/31/00 - - 72.24 1 72.34 1 1 72.16 1 1 72.7872.25 1 NSME 1 .0018 06/20/00 - - 73.50 73.67 - 73.38 73.75 73.52 - N85-E 0.0031 ' 09/20/00 j 71.67 72.79 = 72.56 = 73.14 72.34 S440E 0.0270 12/27/00 71.98 1 72.06 71.89 72.61 1 71.98 N6VE 1 0.0016 03/06/01 - - 71.91 72.01 - 71.85 - 72.45 71.92 N88°E 0.0018. 06/20/01 - - 71.87 72.00 71.75 - 72.15 71.87 - N77°E 0.0025 ' 09/07/01 - 71.60 72.27 - 72.03 - 72.82 71.97 = S480E 0.0160 12/03/01 71.76 71.73 71.56 72.69 71.68 N6 0.0033 Wells Resurve ed 12121/01 in accardanee SWRCB Geotracker Reg uirements Date Elevation of Groundwater I 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 86.37 86.37 Avg. Avg. Bearing** Slope** toe 53.53 53.90 40.30 52.97 54.19 38.61 7.37 7.37 (ft) (tuft) ' bos 5103 51.40 37.80 50.47 5169 36.11 4.87 4.87 12/21/01 73.86 73.95 73.77 74.69 73.86 11.60 N720E 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 N809E 0.0023 ' 09/11/02 = 73.36 73.48 73.25 - 74.22 73.36 12.10 N75-E 0.0023 12/26/02 73.45 73.63 1 73.48 74,38 73.52 11.94 S62-E 0.0037 03/21/03 - 73.32 73.35 73.21 - 73.99 73.29 12.17 N390E 0.0014 06/06/03 - 72.92 73.01 72.82 73.56 72.92 12.54 N70°E 0.0018 ' 09/05/03 1 73.03 173.08 1 - 72.89 1 73.85 1 73.00 1 12.46 1 N369E 1 0.0019 01/03/04 73.38 73.41 73.15 73.23 73.34 73.06 73.34 73.99 73.26 1 12.57 1 N70aE 1 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 7305 73.17 72.88 73.13 73.88 Historical Averages= 73.44 12.09 N72-E 4.0023 ' TOC2-Top of casing elevation surveyed on 519197.MW-2 was used as benchmark elevation. TOC3-Top of casing elevation surveyed on 12118/97 and 10/19/98 into USGS Benchmark T-933 ••Gradient determined from MW-102,MW-105 and MW-107 Mote: Groundwater Elevations prior to 12/18/87 have been normalized to TOM for compafative purposes. I 1 C,alegurrm6e(ulrc tr/?1/Ta1r