The Project is the rehabilitation of the larger South percolation pond, and the smaller pond North Pond, including bottom and sloped walls, to restore the functionality of the ponds. Pond was overtopped by river water during previous rainy season, eroding away approximately 80 cubic yards of material from the SE of the south pond (see figure 2.2.1). Contractor shall fill this void with compacted river run or reuse material from the bottom of the pond if acceptable. Remove approximately 2” of river silt (approximately 120 cubic yards) deposited in pond during overtopping. River silt removed from ponds will stored on site approximately 300 yards from construction site. Exact location and route of access shall be determined by the City of Fortuna General Services Superintendent. Remove the bottom substrate in both ponds to a depth that is free from any visible effluent solids or river silt (approximately 24”-36” and estimated at 1,500 to 2,100 cubic yards, contractor is responsible to verify).
