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in Well 1 and at 95 ft. in hole Jmm2. Sample B was <br />• taken from the siltstone which immediately overlies the <br />Sudduth seam. Results of this testing are presented in <br />Table 1. <br />Table 1 <br />Hydraulic Characteristics of Rock Units <br />Permeability <br />(Horizontal) <br />Lithology Millidarcys Porosity (%) <br />Sample A sandstone .05 4.1 <br />Sample B siltstone .02 2.6 <br />Utilizing these porosities and permeabilities an estimate <br />• of the average rate of ground water flow through these <br />units may be developed by this zelation. <br />' V- CK dh 1/8 <br />dT <br />Where V - average particle velocity <br />' K -hydraulic conductivity <br />dh - gradient <br />i ~ <br />~ 8 - porosity <br />By this equation, ground water velocity in the sand <br />• units will be approximately 1.08 ~ ft/yr and in the <br />siltstone it will be 0.68 ~ ft/yr. <br />9 <br />