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10/15/13 State.co.us Executive Branch Mail -Re: Southfield Mine: MWNW & Pond 4 <br />EFCI in their document dated 12/11/2001 under 4.05 HYDROLOGIC <br />BALANCE states: <br />"In addition to the reclamation techniques and mitigation methods <br />described and referenced in this section. further protection of the <br />hydrologic balance is achieved through comprehensive and ongoing water <br />monitoring programs conducted to detect any significant changes in <br />surface and groundwater quantities or quality. The hydrologic monitoring <br />plan is discussed in Section 2.05.6, Mitigation of Surface Coal Mining <br />Operation Impacts and specific plan details are presented in Exhibit 25, <br />Hydrologic Monitoring Plan. " <br />From "Mitigation of Surface Coal Mining Operation Impacts" selected Sections from 2.04 <br />and 2.05: <br />2.04.7 Hydrology Description. <br />(1) Ground Water Information <br />110(2)(1) <br />(a) The application shall contain a description of the ground water <br />hydrology for the proposed permit and adjacent area, including, at <br />a minimum: <br />(i) The depth below the surface and the horizontal extent of the <br />potentiomebic surface of each aquifer above, within and, if <br />pote ntially impacte d, be low the lowe s t co al s e am to be <br />mined; <br />(ii) The lithology and thickness of the aquifers; <br />(iii) The seasonal quantity and quality of the water within each <br />https: / /mai l.g oog le.conVmai 1 /u /0 / ?ui =2 &i Ire29129fcb5 &viev�-- pt &search =i nbox&th =141 bcb36ff3ec945 3/20 <br />