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may occur if conditions warrant. These procedures have been approved in W FC's NPDES Permit CO- <br />• 0000213. Actual wafer flow velocity going into Pond 007 will be confrolied with adequate energy <br />dissipators (i.e., rock riprap, geotextiles, metal or concrete energy dissipator boxes, etc.) or discharged <br />onto non-erodible bedrock material. This will minimize erosion of the pond banks. <br />Pit dewatering will have an insignificant impact on Pond 007, see Attachment 2.05.3.(3)-2. Pit <br />dewatering wilt be sporadic versus continuous. The flow rate of one to two cubic feet per second or <br />less compared to the designed 10-year, 24-hour peak inflow rate of 123.7 cubic feet per second is very <br />insignificant. In addition, pit water high in suspended solids will be allowed to set for a period of time <br />so the solids are allowed to settle out of the water and will remain in the active pit area. Only after the <br />pit water is clear, will it be pumped from the pit into Pond 007. Further more, all discharge from Pond <br />007 will be in accordance with applicable discharge permits. <br />Pond 007 will be maintained until: <br />1) the disturbed areas are reclaimed and the vegetation success requirements of Section 2.05.4(2)(e), <br />Revegetation, are met, <br />2) the untreated dra(nage 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 waterquaiity requirements, if any, <br />for the receiving streams. <br />Pond 007 will remain after reclamation for stock use as requested by the landowner, San Miguel <br />Power. This is discussed in detail in Section 2.05.4(2)(c) Backfilling and Grading. <br />The sedimentation pond slopes will be protected from erosion where surface runoff enters the pond <br />area. <br />Monitoring for rills and gullies on the pond and other reclaimed slopes will be carried out on a periodic <br />basis; the monitoring being geared to those periods after spring snow melt and during required <br />quarterly pond inspections. <br />• (Revised ~/zoom 2.05.3(3) - 7 <br />