Overview
Superior WWTF is a secondary treatment plant serving 2,850 residents in Superior, Arizona. It discharges approximately 969 cubic meters of treated wastewater daily, with a designed capacity of 2,839 cubic meters.
Superior WWTF is a municipal wastewater treatment facility located in Superior, Arizona, a small town in Pinal County. The plant serves a population of approximately 2,850 residents, reflecting its role in managing domestic wastewater for the local community. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids before discharge. The plant operates under the regulatory framework of the United States Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all point source discharges. For a facility of this scale, typical permit conditions include effluent limits for biochemical oxygen demand, total suspended solids, and pH, along with monitoring requirements. The plant's designed capacity of 2,839 cubic meters per day indicates it can handle peak flows beyond current discharge volumes. The treated effluent is discharged into the local watershed, which ultimately drains into the Gila River basin. The Gila River flows through central Arizona and is a tributary of the Colorado River, supporting diverse aquatic habitats and agricultural water supplies. The plant's inland location and secondary treatment help protect downstream water quality in this arid region.
Environmental context
The plant discharges into the Gila River watershed, a major tributary of the Colorado River. This arid region relies on limited surface water for irrigation and ecosystem support. The treated effluent contributes to base flow in local streams, which sustain riparian habitats and migratory bird corridors. Downstream, the Gila River flows through desert landscapes before joining the Colorado River near Yuma, Arizona.
Frequently asked questions
Superior WWTF is located at 708 West Main Street in Superior, Arizona, within Pinal County.
The plant serves approximately 2,850 residents in the town of Superior and surrounding areas.
The treated effluent is discharged into the local watershed, which drains into the Gila River basin, a tributary of the Colorado River.
As a US facility, it operates under the Clean Water Act and requires an NPDES permit issued by the Arizona Department of Environmental Quality or the EPA.
Plants of this size typically provide secondary treatment, which includes biological processes to reduce organic pollutants and suspended solids, meeting EPA secondary treatment standards.
Nearby plants