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r <br /> iCharter Way Wells <br /> 1 Statistical Evaluation of Water Table Measurments <br /> DATE MW-4 MW-5 MW-6 WELL MEAN WELL VAR. <br /> April 2, 1992 48.300 48.330 48.530 48.387 1.316 <br /> July 23, 1992 47.020 46.980 47.060 47.020 0.033 <br /> 1 Oct, 27, 1992 45.180 44.260 45.220 44.BB7 1.763 <br /> CALCULATIONS WELL <br /> Mean of all readings= 46.764 AVERASE- 9.334 <br /> Mean Tempopral EVENTS <br /> 46.633 46.523 46.737 <br /> EVENT MEAN SQUARE= <br /> 0.002 0.029 0.015 0.139 <br /> Randon calculations <br /> 0.006 0.009 0 000 <br /> 0.001 0.010 0.004 �. <br /> 0.013 0.037 0.006 <br /> RAMDON MEAN SQUARE = 0.030 <br /> RESULTS <br /> EVENT VARIANCE 0.054 <br /> WELL VARIANCE 3.101 <br /> RANDOM VARIANCE 0.030 <br /> STAND, DEV. WELL 0.233 <br /> STAND. DEV. EVENT 1.761 <br /> STAND. DEV. RANDOM 0.174 <br /> Precision Limits for 951 confidence. <br /> 0.105 Lower Limit <br /> 0.501 Upper Limit <br /> To have 951 confidence the contouring is accurate the minimum <br /> contour interval must be greater than 0.501 Feet. <br /> M <br /> i <br />