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-8- <br />V. H drolo is Balance: Ground Water -Rules 2.04.5, 2.04.7, 2.05.3 4 , <br />2.05.6 3 and 4.05 <br />Section 2.04.7 (Volume I), Appendix L (Volume 5), and Appendix R (Volume VII) <br />contain information on ground water. <br />During the course of inspections at the mine during the period April-July <br />1984, it was noted that a seep has developed in the regraded spoil just south <br />and upslope of the existing sediment pond. This seep is 40 feet above the toe <br />of a regraded spoil slope at the 7,440 feet MSL elevation and within the <br />regraded spoil of a previous pit. CMLRD staff tested this seep during July <br />16, 1984 inspection with results of 3,500 mmhos at 25°C for conductivity and <br />a pH of 7.05. Due to the present lack of measurable flow, this seep is not <br />expected to degrade the quality of surface water or ground water within the <br />permit area or off-site. <br />The operation is in compliance with the requirements of this Section. <br />VI. Alluvial Valley Floors -Rules 2.06.8 and 4.24 <br />The permit revision proposed by the permittee will not affect any lands <br />designated as Alluvial Valley Floors, or affect any additional lands which <br />were not addressed in the original permit application and Findings Document. <br />For these reasons the original findings regarding Alluvial Valley Floors at <br />the Hayden Gulch Mine have not changed. <br />Alluvial Valley Floor Findings <br />1. Pursuant to Rule 2.06.8(5), the Division finds that the proposed <br />surface coal mining operations will not interrupt, discontinue, or <br />preclude farming on an alluvial valley floor. <br />2. Pursuant to Rule 2.06.8(5)(ii), the Division finds that the proposed <br />surface coal mining operations will not materially damage the <br />quantity and quality of water in surface and underground water <br />systems that supply those alluvial valley floors or portions of <br />alluvial valley floors. <br />3. Pursuant to Rule 2.06.8(5)(iii), the Division finds that surface coal <br />mining and reclamation operations will be conducted to preserve, <br />throughout the mining process, the essential hydrologic functions of <br />alluvial valley floors. <br />The operation is in compliance with the requirements of this section. <br />VII. Probable Hvdroloaic Consequence and Cumulative Impact Assessment <br />The applicant's statements of hydrologic consequences of the operation are <br />located in Sections 2.04.7 and 2.05.6 of Volume I. Data supporting these <br />statements can be found in Appendix E (Volume III), Appendix I (Volume IV), <br />Appendix L (Volume V), Appendix R (Volume VII), and Appendix S (Volume VII). <br />These sections have been reviewed by the Division for compliance with the <br />Rules and Regulations. <br />