PERMFILE105687 - Laserfiche WebLink

Home Browse Search

Groundwater System: Based on information gained by 22 drill holes located on the. Sunland Mining Corporation leases (hole locations are plotted on mining plan map is exhibit C) and by mining ex- perience in the Apex ~1 and. Apex. 42 mines, the area ground- water system is not expected to be adversely affected by mining operations. The only known aquifer existing in our lease area situated at a horizon reached by.our drilling is the Tow Creek sand- stone. The Tow Creek sandstone does not outcrop on our lease area as it is situated below the Blacksmith coal seam. The Tow Creek sandstone, in all probability, is recharged by Trout Creek in those locations where it outcrops in the Trout Creek drainage (see Regional Geologq map in sec- 2~04.~5). No water flows from any of the drill holes located on our lease area. Inasmuch as present mining plans do not call for operations ' in the Blacksmith seam, impact on the Tow Creek sandstone by o.ur mining operations will be minimal. Groundwater encountered in the present mining operation is of minimal amount. Groundwater is first encountered in the Apex ~2 Mine.at the 7350' structural contour of the lower Pinnacle seam. All mine entries above this structural contour are dry, and those workings below the 7350' elevation to the limit of present mining at 7300' elevation produce a very limited amount of water., Mine water usage is approximately 6000 gal per 24 hour period. Drawing on the sump area of the D2 mine, which when the mine was active during 1977 extended from the 7300' elevation to 7315' elevation, steadily reduced the amount of water standing in the sump. Considering that an appreciable portion of the water usage by the mine ie "aelf- recycled^ (that is excess spray water used in the mine finding its waq back to the sump), the mine nearly holds its own. and ~' should (over the long run) neither require pumping out nor additional water from the surface. S$