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THE EFFECT AND SOURCE OF WATER <br />INFL041 TO THE EAGLE N0. 5 MINE, 2 (JEST MAINS <br />- A GEOLOGIC ASSESShtENT - <br />Introduction <br />On or about July 6, 1981, mining operations within the Eagle No. 5 <br />Mine - 2 West Mains intercepted a fault gouge zone (Exhibit A). The zone <br />was first penetrated in 2L entry, and the material within the zone <br />consisted of pulverized coal, soft, wet clay, and clayey shale. The <br />material is quite incompetent and tends to fall into the entry unless <br />extensively supported. The intercepted zone produced water which <br />increased the total flow of water into the mine workings. <br />The fault had been predicted by surface geologic mapping, but due to <br />the inaccuracies in mapping, was encountered somewhat earlier than <br />expected. While plans were made to cross the fault, an operating unit <br />turned southward with plans to drive until the fault was encountered and <br />pillar back to maintain production. <br />Prior to encountering the fault, water production into the No. 5 Mine <br />via 2 West Mains was minimal. Upon encountering the fault, water <br />production increased to an estimated steady state condition of about 110 <br />gpm. On or about 1/25/82, the fault was crossed and mining begun between <br />the faults. Water production from the 2 West area increased to 448 gpm. <br />On February 20, 1982, a second fault was encountered about 490 feet <br />inby the former fault. <br />