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<br />POINT WHERE WATER LEVELS MAYBE RECORDED AND WATER QUALITY <br />SAMPLES REPRESENTATIVE OF THAT ZONE MAY BE RECOVERED. <br />THIS SCHEDULE OF MONITORING SHALL BE QUARTERLY AND THE DATA <br />RECORDED SHALL BE INCORPORATED AND INTERPRETED IN THE ANNUAL <br />HYDROLOGIC REPORT FOR THE MINE. <br />THE PARAMETERS APPEARING ON LIST B (P. 4-241C OF THE PERMIT <br />APPLICATION) SHALL BE RECORDED ON AN ANNUAL BASIS, STARTING WITH THE <br />QUARTER M WHICH THE MONITORING BEGINS. THE PARAMETERS APPEARING ON <br />THE FOLLOWING L[ST SHALL BE RECORDED DURING THE SUCCEEDING THREE <br />QUARTERS OF THE MONITORING YEAR: <br />WATER LEVEL PH <br />CONDUCTIVITY TDS <br />ARSEMC BARIUM <br />CADMIUM CHROMIUM <br />LEAD SELENIUM <br />COPPER IRON <br />MANGANESE FLUORIDE <br />NITRITE NITRATE <br />SULFATE <br />Surface Water impacts <br />The applicant expects post-mine surface water quality to be close to the pre-mine <br />quality a few yeazs after mining (page 4-237 of permit application). During <br />mining in a drainage, runoff may temporarily increase during the time period the <br />ground surface is denuded. Much of the increased runoffwill be contained by the <br />pits and the required sediment control system of ditches and ponds. Spring <br />snowmelt will cause the ponds to dischazge, although the levels of total suspended <br />solids in snowmelt runoff will be substantially below pre-mine levels inmost <br />cases due to settling in the sediment ponds. Pit pumpage will also cause some <br />drainage systems to dischazge on a regular basis but this water is of generally <br />acceptable quality for stock watering and other agricultural purposes and no <br />problems aze projected due to this discharge. Once vegetation is re-established <br />throughout a drainage, runoff in the drainage may decrease below pre-mining <br />levels as surface water infiltrates more easily in[o the subsurface which has been <br />disaggregated by mining. <br />The most noticeable change in surface water quality will likely be an increase in <br />the levels of total dissolved solids (mainly sulfate) contributed by springs that <br />discharge from the mined out pits that have been back-filled with spoils (page 4- <br />TraopeY Mine <br />23 <br />Mav 1 l i om <br />