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-34- <br />Outflow <br />AET 31,000 22,000 <br />Irrigation Ditches 15,000 15,000 <br />Total 46, 00 3T,OD~ <br />Change in Storage ~1~ 26,000 -14,000 <br />1 Includes inflow and/or outflow of ground water. <br />The hydrologic consequences of surface mining during the first five <br />year permit term are expected to be minimal. The applicant reports <br />that no degradation of water quality in surface streams is expected. <br />Any effluent will be treated as necessary to meet quality standards <br />prior to discharge. The applicant has not considered the possibility <br />of increased total dissolved solids because of pond detention. <br />However, due to the small pond volumes, limited mine discharge, and <br />high dilution resulting from the North Fork River, a measurable impact <br />is not anticpated. The following stipulation is required: <br />Stipulation No. 8: THE APPLICANT'S QUARTERLY MONITORING REPORTS SHALL <br />INCLUDE QUALITY AND QUANTITY MONITORING OF ALL DISCHARGES FROM THE MINE <br />SITE. WATER QUALITY MONITORING SHALL CONSIST OF THE EFFLUENT <br />LIMITATIONS PLUS TOTAL DISSOLVED SOLIDS. <br />The applicant anticipates consuming all the ground water that collects <br />in the mine for dust control and coal processing within the mine, <br />thereby producing no mine discharge. The following stipulation is <br />required if water is encountered: <br />Stipulation No. 9: SHOULD THE APPLICANT ENCOUNTER MORE GROUND WATER <br />THAN ANTICIPATED, PRIOR TO THE DISCHARGE OF EXCESS MINE WATER, THE <br />APPLICANT SHALL PROVIDE AN ANALYSIS OF ANTICIPATED WATER QUALITY AND <br />QUANTITY, AND AN ASSESSMENT OF THE EFFECTS ON THE RECEIVING STREAM. <br />CUMULATIVE HYDROLOGIC IMPACT ASSESSMENT <br />Impacts on Ground Water <br />The six underground mines along the North Fork of the Gunnison may impact <br />ground water quantity by one or more of the following: <br />- induced inflows into the mines through faults and fractures which <br />provide communication between the mine and overlying and underlying <br />aquifers and surface waters; <br />- dewatering of the coal, roof and floor with the advance of mining; <br />and, <br />