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• -11- <br /> �--. an overburden depth of 660 feet. In order to assess the impacts of mining on <br /> the hydrologic balance within the life of mine and hydrologically adjacent <br /> areas, and in order to assess the quantity, quality, and source of mine inflows, <br /> the Division is requiring the following stipulation to the permit: <br /> THE OPERATOR SHALL SUBMIT TO THE DIVISION AN ANNUAL REPORT OF INFLOWS, <br /> DISCHARGES, AND CONSUMPTION OF WATER WITHIN THE MINE. THIS REPORT IS <br /> TO INCLUDE A MINE WORKINGS MAP SHOWING THE LOCATION AND QUANTITY OF <br /> INFLOWS; A TABLE KEYED TO THE MINE mAP WHICH SHALL CONTAIN THE SOURCE <br /> (I.E. FAULT, FRACTURES, ETC.) , QUANTITY, DURATION AND QUALITY (I.E. pH, <br /> ELECTRO-CONDUCTIVITY AND TEMPERATURE) OF ALL MEASUREABLE INFLOWS; A <br /> TABLE CONTAINING RECORDS OF WATER IMPORTED FOR USE WITHIN THE MINE; A <br /> DISCUSSION OF THE WATER BALANCE WITHIN THE MINE; AND FINALLY, A PRO- <br /> JECTION OF HYDROLOGIC IMPACTS OF MINING IN THE UPCOMING YEAR. <br /> A spring monitoring plan will be necessary in order to assess the impact of <br /> mining on groundwater, since impacts from mining will first be manifested as <br /> reduced spring flows. The springs in Section 18 and 19, T13S, R91W and <br /> Section 24, T13S, R92W, identified on Map 43, and any additional springs that <br /> may be located during field checking, must be monitored on a regular basis <br /> during the mining operation in order to determine flow rates, water quality <br /> (i.e. pH, electro-conductivity and temperature) and seasonal fluctuations. <br /> This spring monitoring plan will determine the effects of mining on spring <br /> flows and quality within the life of mine and hydrologically adjacent-areas <br /> to aid in predicting effects in subsequently permitted areas. <br /> ALL SPRINGS IN THE 5-YEAP. PERMIT AREA AND ADJACENT AREA (THOSE IN <br /> SECTIONS 18 AND 19, T13S, P,91W, AND SECTION 24, T13S, R92W) SHALL BE <br /> MONITORED FOR DISCHARGE AND WATER QUALITY (I.E. pH, ELECTRO-CONDUCTIVITY <br /> AND TEMPERATURE) ON A QUARTERLY BASIS AS WEATHER PERMITS. THE DATA <br /> GATHERED FROM THE MONITORING SHALL BE SUBMITTED TO THE DIVISION QUARTERLY. <br /> In order to assess the impacts of mining on groundwater in the Stevens Gulch <br /> aaluvium, the existing Stevens Gulch well will need to be monitored on a <br /> monthly basis in order to note any changes in groundwater levels and quality <br /> (see Appendix A, Baseline Water Quality Monitoring) . <br /> THE OPERATOR SHALL BEGIN MONITORING THE ALLUVIUM OF THE STEVENS GULCH <br /> WELL FIELD. THE MONITORING WELL SHOULD BE MONITORED MONTHLY FOR WATER <br /> LEVELS AND QUARTERLY FOR WATER CHEMISTRY. THE DATA GATHERED FROM THE <br /> WELL SHALL BE SUBMITTED TO THE DIVISION QUARTERLY. <br /> In order to assist in evaluating the hydrologic impacts of subsidence on strata <br /> above the "D" seam, a groundwater monitoring well-needs to be installed above <br /> the first panel to be monitored. The well should extend through all strata <br /> overlying the "D" seam. <br /> THE OPERATOR SHALL INSTALL AND BEGIN MONITORING ONE, MONITORING WELL <br /> LOCATED OVER THE PANEL TO BE MONITORED FOR SUBSIDENCE ONE YEAR PRIOR <br /> TO MINING THIS PANEL. THE HOLE SHALL BE COMPLETED IN THE STRATUM OVER- <br /> LYING THE "D" SEAM. WATER LEVELS IN THIS WELL SHALL BE MONITORED MONTHLY <br /> AS WEATHER PERMITS, AND WATER QUALITY SAMPLES SHALL BE DRAWN TWICE <br /> PER YEAR FOR THE PARAMETERS LISTED IN APPENDIX A OF THIS FINDINGS DOCU- <br /> MENT. THE OPERATOR SHALL SUBMIT TO THE DIVISION A WELL COMPLETION REPORT, <br />