AWWA ACE94124

The objectives of the demonstration project described include the following: determine the effectiveness and operational requirements for use of constructed wetlands to provide additional treatment prior to introducing Trinity River water into the District's water supply reservoirs; determine operational requirements for use of constructed wetlands as effective Best Management Practices (BMPs) within watershed management; provide data on removal efficiencies of the wetland cells for nutrients (phosphorus and nitrogen), heavy metals, total suspended solids, fecal coliforms, and toxic organics; test the suitability of various aquatic macrophyte plants and communities based on removal efficiencies, and adaptation of the aquatic macrophytes to the constructed wetland environment; determine if harvesting of plants will be necessary for long-term removal of contaminants; and determine the long-term effectiveness of constructed wetlands in the removal of contaminants.