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,~ was made to determine the resource potential of this unit. <br />Drilling records indicate that the sandstones in this area make very <br />little water, if any at all. The neutron log of hole 81-07 indicates an <br />average sandstone porosity of 15%. Upon physical inspection, the <br />sandstone unit is comprised of a series of fining upward units which would <br />effectively limit vertical transmissivity. Horizontal transmissivity is <br />projected to be fairly good through the cleaner, cross bedded portions of <br />the unit. The core from UG-9, as well as the sonic log from 8107 <br />indicates abundant fracturing within the sandstone. Secondary (fracture) <br />permeability is probably the main means of migration and drainage in this <br />unit. It is unlikely that fracturing is limited only to the sandstone <br />overlying the G seam. <br /> <br />The temperature lbg in hole 81-07 did not indicate a significant <br />inflow of water to the hole. A slightly exaggerated gradient occurs, but <br />no large change occurs iri the curve opposite the sandstone. <br />The geophysical logs of 81-07, as well as drilling records from other <br />holes in the area indicate that the sandstone above the G seam seldom <br />produces significant quantities of water to drill holes. The presence of <br />fracture permeability is probably the only way to produce significant <br />quantities of water from this unit. The fault gouge appears to act as a <br />significant aquiclude to lateral migration of water. The sandstone above <br />the G seam is essentially a perched aquifer in the area wherein the No. 5 <br />Mine is operating. The areal extent of this sandstone, as defined by the <br />limits of the two faults and the planned northern extent of works in the <br />No. 5 Mine, is about 50 acres, however, the unit itself covers a large <br />