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Rule 2: Permi(s <br />• AMSL. Since recharge occurs principally above 7,500 feet AMSL (Howard, 1982), no spoils pile <br />springs are anticipated from either these spoils piles or the infilled contour cut areas. <br />Fills <br />At the Jeff Canyon surface mine, excess spoil fills will be created associated with the removal of <br />coal in this area. These fills are designed with an underdrain consisting of coarse rock at the <br />bottom of the pile that will provide a high hydraulic conductivity material for conducting water <br />through the structures. Since the structures will be located on slopes that do not provide catchment <br />areas, there will be no spoil pile aquifers. Basically, water that enters this system will drain to the <br />area of low permeability and then immediately be conducted along the slope to the toe of the fill. <br />At this point, the water will enter the surface mine sediment control impoundments. <br />Points of Compliance <br />New Rule 4.05.13(1)(b) requires one or more Points of Compliance if there is potential for <br />negative impacts to ground water. Based on the above discussion, LCC anticipates no negative <br />impacts to the ground water as a result of mining in Jeff Canyon or Lorencito Canyon; therefore, <br />no points of compliance will be required. <br />• <br />• ~Q_oi <br />2.05-83c (revised 09/12/01) <br />