A Safety Data Sheet (SDS) on a sodium hypochlorite solution, a disinfecting agent commonly used in water treatment plants, says that the chemical can cause severe eye damage and skin burns, and is very toxic to aquatic life, having persistent effects. The SDS on sodium hypochlorite says the solution must be disposed of following local and national regulations and that it can’t be mixed with other forms of waste. The tanks are currently past life expectancy and work on this project is crucial because one of the three tanks is leaking.