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January 31, 2018 C-1981-018/Deserado Mine JDM <br /> <br /> <br />Number of Partial Inspection this Fiscal Year: 4 <br />Number of Complete Inspections this Fiscal Year: 3 <br /> <br /> Page 4 of 8 <br /> <br /> RP-4 Pond RP-5 Pond <br /> <br />The SDH-3 site and process ponds were stable, with the exception of the following maintenance item: <br />- During pumping activities into the final pond from the rock-lined spillway of the middle pond, ice build- <br />up caused the pumping hose to discharge on the edge of the rock-lined spillway and the embankment. This <br />discharged created a heavy amount of erosion to the embankment and a build-up of sediment in the final <br />pond. The spillway and the erosion created will require repair. Based on the Division’s inspection the final <br />pond is not in jeopardy of failing and the repair work can be postponed until the spring if additional <br />pumping is not activated. <br />