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<br />future spills and insure containment in the pond. The discharge line will release the tailings <br />into the tailings pond from hoses attached to spigots located every 20 feet along the upstream <br />crest of the impoundment dam. By selectively controlling the location of the spigot hoses, the <br />tailings will be discharged in a manner that promotes the favorable separation of the tailings. <br />If all of the mill tailings discharge lines are kept within the inside of the lined portion of the <br />pond, the only critical section of the tailings pond is the length of line between the mill <br />building and the tailings pond. Initial operations will continue to use the buried six inch line <br />to convey tailings from the mill to the pond. Because the height of tailings in the pond will <br />increase with the deposition of mill tailings over time, it will eventually become necessary to <br />convey the tailings from the mill to the tailings impoundment area using a line placed on the <br />surface of the ground. In order to insure that no tailings are lost during this period of <br />operations, the line will be installed in a wooden frame box that has a geomembrane lining. <br />This wooden frame box will be constructed in such a fashion that the tailings discharge line <br />will rest on the lower portion of the geomembrane lining at the bottom of the box, so that it <br />can be inspected and repaired if necessary. Any tailings that might leak from the discharge <br />line will be contained within the geomembrane liner, and conveyed by gravity to the inside of <br />the tailings pond. No mill tailings water will be washed through the discharge lines unless the <br />lines have been tested before and properly drained after each period of milling operations. All <br />mill tailings lines will be inspected on an hourly basis after any new sections are installed, and <br />every two or three hours during normal milling operations. When extremely cold weather <br />conditions exist, the tailings discharge lines will be monitored on an hourly basis, and the <br />peripheral discharge spigots closest to the mill building will be used. <br />A map showing the location of the four approved water monitoring wells that are <br />downgradient from the tailings impoundment dam is attached to this letter. All of the water <br />monitoring data collected from these wells over the last year also accompanies this letter. <br />In 1985, a field examination with the Staff Specialist from the Mined Land <br />Reclamation Division disclosed that the two sites selected for drilling the monitoring wells <br />downgradient from the tailings pond were acceptable locations. The northeastern most of the <br />2 <br />