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REV09754
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REV09754
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Entry Properties
Last modified
8/25/2016 1:10:13 AM
Creation date
11/21/2007 10:07:23 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981035
IBM Index Class Name
Revision
Doc Date
8/15/1990
Doc Name
Proposed Decision Form & Findings Document
Type & Sequence
PR2
Media Type
D
Archive
No
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3. Pursuant to Rule 2.Ob.8(5)(a)(iii) and the requirements of <br />Rule 4.24.2(1) the current and proposed future operations at the <br />King Coal Mine will be conducted to preserve, throughout the mining <br />and reclamation process, the essential hydrologic functions of the <br />Alluvial Valley Floor of which Pine Gulch is part. <br />The proposed operations is in compliance with the requirements of <br />this section. <br />IX. Assessment cf Probable Hydrological Consequences of Mining and Cumulative <br />vnrA~ni~ lmnar c- a Pc n_ ann h r <br />A. Probable Hydrologic Consequences <br />This section assesses the effects that the proposed future operation of <br />the King Coal Mine, which will include the area of PR No. 2, will have on <br />the surface and ground water systems within and adjacent to the mine area. <br />1. Surface Water Effects <br />The e;ctent and configuration of the area currently disturbed by the <br />King Coal Mine will not be changed in the proposed future <br />operation. The system of surface water and sediment control for <br />this area will not be altered. As discussed under Section VI - <br />Surface Water Hydrology of this document, mining in the proposed <br />area of PR No. 2 will involve no additional surface disturbance and <br />will be conducted so as to minimize subsidence under Pine Gulch. <br />There should be no adverse impacts upon surface water quantity or <br />quality in Pine Gulch, in the permit or in downstream areas. The <br />general conclusions reached in this section of the July, 1987 <br />Findings Document (Renewal-, therefore, remain applicable. <br />2. Ground Water Effects <br />The proposed enlargement of the King Coal permit area and extension <br />of underground mining to the area of proposed PR No. 2 does not <br />essentially change the relationship of the mining to bedrock ground <br />water supplies. The record of bore holes reported in the current <br />permit package and those supplied with the current application <br />indicate the Menefee formation, in which the mining is conducted, <br />is essentially dry. Any perched aquifers that may be encountered <br />and dewatered by the mining are therefore expected to be limited in <br />extent and number. There are no local webs in the Menefee that <br />serve as a source of water for domestic or agricultural use. There <br />is no evidence that water from the Menefee Formation may supply <br />base flow to any Tocal stream or spring. <br />The proposed future operation of the mine which will incluae the <br />area of PR No. 2 is also not sufficiently different from the <br />current operation to alter the conclusions reached in the <br />July, 1987 Findings Document (Renewal) in regard to the Hay Gulch <br />alluvial aquifer. <br />-7- <br />
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