1996-12-16_REVISION - M1984099 - Laserfiche WebLink

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19 . That close coordination will be maintained by the contractor with downstream water users, advising them of any water quality changes to be caused by the construction. 20 . That the disposal area, method of disposal , or methods of dredging will not be changed without prior written approval of the District Engineer. 21 . That the use of machinery in the waterway is prohibited. 22 . That the discharge will consist of suitable material free from toxic Pollutants . 23 . That only clean riprap materials will be utilized in order to avoid the percolation of fines which would result in excessive local turbidity. 24 . That the top elevation of the riprap will not exceed the elevation of the top of the existing bank line . 25 . That in constructing the riprap bank protection, the permittee shall not attempt to straighten the shoreline with the placement of fill material but will generally follow the existing contours of the cutting bank line . 26 . That reinforcing bars in the broken concrete riprap will be cut off flush with concrete prior to it being placed between the river' s banks . SPECIAL CONDITIONS A. That the disturbed banks will be seeded/planted with native grasses and shrubs to prevent erosion to the banks and silt material from entering the River. B. That three-hundred willow stakes and three-hundred cottonwood stakes will be planted along the banks during the months of January and February 1997 . An 80% success ration will be achieved. A wetland seed mix of 25 lbs . per acre will be planted along the rivers edge during the early 1997 growing season . C. Annual monitoring reports will be submitted to the Tri-Lakes Project Office on or before 30 December of each year beginning in 1998 . This report will be provided to the Corps for 5 years or until the Corps determines the mitigation viable and self- sustaining . 6.