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the PMP storm event. The tailings embankment and disposal area have <br />• been designed to be a nondischarging system. The tailings water will <br />be continually recycled through the mill with makeup water added only <br />as necessary. Tailings water will be impounded in a pool on top of <br />the deposited tailings. Any water which permeates through the <br />tailings will be collected in the drainage layer and conveyed to the <br />collection pond for pumping back to the tailings water pool. Storm <br />water flows from undisturbed areas up to and including the 100 year <br />24 hour storm event will be diverted around the disposal area. Flows <br />greater than the 100 year 24 hour event may cause the diversion <br />ditch to breach but can be safely contained on the disposal area <br />surface without overtopping throughout the life of the operation. <br />The results of the water balance analyses are i ncl uded i n <br />Appendix I to this amendment. Each of the components of the water <br />balance are discussed within the following sections. <br />D.7.1 Water Sources <br />• The milling process, as planned, will receive water from <br />three sources. The first source will be offsite supply. The <br />offsite water will be used during start-up and for' makeup water <br />as needed. The offsite water supply is discussed in Exhibit <br />G of this amendment. The second source of water is recycled <br />water from the tailings disposal area. The third source will <br />be from dewatering operations within and adjacent to the west <br />pit. <br />D.7.2 Tailings Disposal Area <br />Inflows consist of the tailings slurry and direct <br />precipitation and runoff from the incident catchment area of <br />approximately 205 acres. Outflows consist of recycled water <br />and evaporation from the tailings surface area. In addition, <br /> <br />D-13 <br />