The Chemical Building, Field's Point Wastewater Treatment Facility is an historic wastewater treatment building on Ernest Street at Field's Point in Providence, Rhode Island. Built in 1900-01, it is one of the two oldest buildings at Providence's main sewage treatment facility. It is a 2-1/2 story brick structure measuring 103 feet (31 m) by 38 feet (12 m). The long facades are divided into 9 bays, separated by brick piers. When originally built, the structure had a concrete first floor, a wooden second floor, and a loft area accessed by catwalks, and was used to hold and deliver chemicals used to neutralize the wastewater arriving via the Ernest Street Sewage Pumping Station. In the 1930s the plant was converted to use an active sludge process, and the interior of the building was altered to be a single large chamber.