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I <br /> • <br /> Ust ®f Sym b®is <br /> b = thickness of agwfer[L] <br /> b, = thickness of fra=re skin [L] <br /> V = thickness of aquitard overlying aquifer in leaky system or <br /> one-half thickness of blocks in fissured system [L] <br /> b" = thickness of aquitard underlying aquifer[L] <br /> B = leakage factor[V] <br /> d n = vertical distance between top of perfamuons in pumping <br /> well and initial position of water table divided by initial <br /> saturated thickness of aquifer [L] <br /> H = static height of water to well measured from base of well <br /> to static water level [L] <br /> Ho = initial displacement in well due to slug infection or extraction [L] <br /> Jr W Bessel function of first kind, zero order <br /> Y J, = Bessel function of first kind, first order <br /> K = hydraulic conductivity of fractures in fissured system [L/T] <br /> K„ = modified Bessel function of second land, zero order <br /> K, = modified Bessel function of second kind, first order <br /> 10 K, = radial (honzontal) hydraulic conductivity of aquifer[L/T] <br /> K� = hydraulic conductivity of fracture skin (LIT] <br /> Kt = vertical hydraulic conductivity of aquifer [L/T] <br /> K' = hydraulic conductivity of aquitard overlying aquifer in <br /> leaky system or block system in fissured system [L/T] <br /> K" = hvdraulic conductivity of aquitard underlying <br /> aquifer [L/T] <br /> f; = vertical distance between bottom of perforations in <br /> pumping well and initial position of water table divided by <br /> initial saturated thickness of aquifer [L] <br /> L = length of well screen [L] <br /> p = Laplace transform variable <br /> Q = pumping rate [L' /T] <br /> r = radial distance [L] <br /> r = well casing radius [L] <br /> 1 r� = equivalent radius over which head Ioss occurs [L] <br /> r„ = well radius [L] <br />