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Bouwer&Rice Page 1 of 2 <br /> Well No. A-1 <br /> Golder Name BH5 <br /> Test Type Falling Head <br /> Bouwer and Rice Analysis <br /> Bouwer and Rice,1976 <br /> •Residual Head <br /> 10.000 <br /> w <br /> v <br /> 'd <br /> rr 1.000 <br /> a <br /> ♦•••••• • <br /> 0.100 <br /> 0.00 10.00 20.00 30.00 40.00 50.00 60.00 <br /> Elapsed time(mina) <br /> K Hydraulic conductivity <br /> rc Radius of the unscreened part of the well 0.11 feet <br /> rW Horizontal distance from well centre to undisturbed aquifer 0.15 feet <br /> R. Radial distance over which the head difference ho is dissipated 3.11 feet <br /> d Length of well screen or open section of well 10.00 feet <br /> Line I ho Residual head in the well at time t=0(to) 0,54 feet <br /> Line 1 ht Residual Head in the well at chosen elapsed time t 0.40 feet <br /> D Saturated thickness of aquifer(approximately) 11.80 feet <br /> b Distance between static water level and bottom of screened section 11.30 feet <br /> A Dimensionless constant obtained from the Bouwer and Rice curves. 3,60 <br /> B Dimensionless constant obtained from the Bouwer and Rice curves. 1,20 <br /> Line 1 t Chosen elapsed time from plot above 10,00 mins <br /> d/r. Calculated parameter to obtain A and B factors from Bower and Rice curves 68.60 <br /> In(R,/r,,)= 1 3.06 <br /> 1.1 + A+B In((D-b)/r.) <br /> In(b/rv) d/rw. <br /> K= r.'`In(R,/r.) x In(ho/ho t K(feet/min) K(m/s) K(cm/s) <br /> 2dt Line 1 5.48E-05 2.79E-07 2.79E-05 <br /> A 1 FALL.ANL <br />