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The hydraulic corductiviry of the soil adjacant to a well screen may be approximated using a <br /> W modification of a steady state groundwater flow to a well, where <br /> k '° k;-L0-EM/Zw 1 In ZO (Bouwer and Rice. 1976) <br /> IL, t yt <br /> Where: <br /> k = hydraulic -onductiviry of the aquifrr (LfT) <br /> rc • inside radius of the using, (L) <br /> Y = head :oss, (L) <br /> Yo = initial head loss. (L) <br /> rw = radial distance of borehole, (L) <br /> L = screen length, (L) <br /> D = saturated aquifer thickness, (H)assumed to Is times (ft) <br /> H= depth from static water level to well bottom, (L) <br /> A = dim coefficient <br /> T B = dim coefficient <br /> C= dim coefficiene <br /> Re = equivalent radial distance which the head loss is dissipated, (L) <br /> Where: <br /> In Rellrw <br /> (In Hfrw) L/rw 0for partially penetrating wells, and <br /> In Re/rw = lQ + ^4L 1 for fully penetrating wells. <br /> ( / w) L/rw <br /> For a given geometry. rw, H, L, and D wiil yield values for A and B or C, which were <br /> - obtained from an analog simulation described by Bouwer and Rice, 1976. <br /> A serailosari thmic plot of the head change versus time was constructed. The term 1/t Iny0, t <br /> was obtained from the best Cain strai ht-.line,_________—_..—_.__.._._ <br />