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• will be controlled with adequate energy dissipators (i.e., rock riprap, geotextiles, metal or concrete <br />energy dissipator boxes, etc.) or discharged onto non-erodible bedrock material. This will minimize <br />erosion of the pond banks. <br />Pit dewatering will have an insignificant impact on Pond 010. Pit dewatering will be sporadic <br />versus continuous. The flow rate of one to two cubic feet per second or less compared to the <br />designed 25-year, 24-hour peak inflow rate of 136.5 cubic feet per second is insignificant. In <br />addition, pit water high in suspended solids will be allowed to set for a period of time so the solids <br />are allowed to settle out of the water and will remain in the active pit area. Furthermore, all <br />discharge from Pond 010 will be in accordance with applicable discharge permits. <br />All ponds will be maintained until: <br />1) the disturbed areas are reclaimed and the vegetation success <br />requirementsofSection2.05.4(2)(e), Revegetation, are met, <br />2) the untreated drainage from the disturbed area ceases to contribute additional suspended solids <br />above natural conditions, and <br />• 3) the drainage leaving the pond meets applicable State and Federal water quality requirements, if <br />any, for the receiving streams. The ponds will be removed when the appropriate sections of the <br />regulations are satisfied. <br />When the ponds are removed, the affected land will be regraded and revegetated pursuant to the <br />CDMG's regulations, Section 4.05.17 and the approved WFC Reclamation Plan. <br />Pond 008 through 013 Designs <br />As shown above for Sediment Pond 007, Tables 2.05.3(3)-1 and 2.05.3(3)-2 list the values of CN <br />and "k" for different soil and vegetation types at the New Horizon Mine. The tables have been <br />revised to address new soils found in the area west of 27.00 Rd <br />The curve number (CN) and "k" factor for each of the ponds is determined as a weighted average. <br />The undisturbed area curve number and "k" factor information is based on the soils and vegetation <br />2.05.3(3) -15 <br /> <br />