City of New Orleans Potable Water System Water Quality Master Plan

The New Orleans Sewerage and Water Board selected BKI to design improvements for the rehabilitation of the Board's 'C' Basin at the 200-MGD Carrollton Water Treatment Plant. BKI's plans for the rehabilitation of the storage basin included new inflow channel, chemical feeds, baffles and effluent channel. The original structure was constructed nearly 100 years ago and was being used as a storage basin for treated potable water. Modifications of existing storage basins were incorporated to include new inflow troughs, chemical feeds, baffles and effluent troughs to increase chemical contact time. BKI provided design of plans and specifications, construction administration and full-time resident inspection during construction. The renovation will redirect flow through the plant to utilize this basin as a chemical feed and contact basin with the use of baffles constructed in the longitudinal axis to allow proper chemical contact time while flowing through the basin. The total construction cost was approximately $13 million.