This project consists of providing a facility designed with the heating and ventilating system that are necessary in housing 38% sodium bisulfite to provide a healthy working environment for WTD employees. The work involves modifying the existing digesters equipment room to house three-1490 gallon tanks with 38% liquid sodium bisulfite. This includes installing tanks, adding CMU wall to provide separate sodium bisulfite room with two feet chemical containment wall, heating and ventilating system, leak detection, trenching between the digesters and the clarifiers building.