This bill mandates that the Corps of Engineers, through the Secretary of the Army and Chief of Engineers, implement a prohibition on certain water discharges from Lake Okeechobee. Specifically, discharges through the S-308 and S-80 lock and dam structures would be halted under defined conditions. The primary goal is to prevent the release of water containing harmful levels of toxins into surrounding areas. The prohibition is triggered when the concentration of microcystins in the water surpasses the maximum levels recommended by the Environmental Protection Agency for recreational waters. Water quality tests conducted by the Secretary, other federal agencies, or the State of Florida will be used to determine compliance with these standards.