2009-05-19_REVISION - M1977285 (32)

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. COR-030000 Stormwater Management Plan • The washout site must be temporary (less than 1 year); • The washout site may not be located in an area where shallow groundwater may be present, such as near natural drainages, springs, or wetlands; and • Upon termination of use of the washout site, accumulated solid waste, including concrete waste and any contaminated soils, must be removed from the site to prevent on-site disposal of solid waste. iii) Portable sanitary facilities Where needed, portable sanitary facilities will be provided in convenient, level locations away from traffic areas, paved surfaces, drainage areas, or retention areas. A licensed company will be hired to maintain and clean the units, inspect for any deficiencies, and keep the units in good working order. Portable sanitary facilities will be adequately anchored to prevent tipping over. ,Q) Groundwater aadSmrwwaderDewWering (§/.. C.I e)d) The Water Quality Control Division's General Permit for Stormwater Discharges from Construction Activities allows for dewatering of groundwater and stormwater to the ground surface to allow for infiltration on the site. No groundwater from construction dewatering will be discharged as surface runoff or to surface waters on the site. It is not anticipated that dewatering activities will be required during this • project. However, if dewatering becomes necessary, groundwater and/or stormwater may be pumped from excavations or trenches to the ground surface on the site for infiltration or evaporation. The location of pumping and deposition of the groundwater or stormwater will be marked on the site plan prior to the start of pumping activities. If it becomes necessary to pump groundwater off site then a groundwater discharge permit must be obtained from the State prior to engaging such activities. i V Denison Mines (LISA) Corp. Sunday Mines SWMP 21