Overview
Tolleson WWTF serves approximately 28,445 people in Tolleson, Arizona, as part of the municipal wastewater infrastructure. The plant operates under the U.S. Clean Water Act framework.
Tolleson WWTF is a municipal wastewater treatment facility located in Tolleson, Arizona, within Maricopa County. It serves a population of about 28,445 residents, placing it in the medium-agglomeration category for U.S. wastewater systems. The plant is situated in the arid Southwest, where water reclamation and reuse are critical for sustaining local water supplies. As a U.S. facility, Tolleson WWTF operates under the National Pollutant Discharge Elimination System (NPDES) permit program, which is authorized by the Clean Water Act. This regulatory framework requires treatment plants to meet specific effluent limits to protect water quality. For a plant of this scale, secondary treatment is typically required, though advanced treatment may be necessary if the discharge is to sensitive waters or for reuse purposes. The treated wastewater from Tolleson WWTF is discharged into the local watershed, which ultimately drains to the Gila River and then to the Colorado River. The Colorado River is a vital water source for the southwestern United States, supporting agriculture, urban populations, and diverse ecosystems. The plant's operations contribute to protecting downstream water quality in this arid region.
Environmental context
Tolleson WWTF discharges into the Gila River watershed, which flows into the Colorado River and eventually to the Gulf of California. The Colorado River Basin supports critical habitats for native fish species and migratory birds, and its water is heavily allocated for human use. The plant's effluent must meet stringent water quality standards to prevent nutrient pollution and protect downstream aquatic life in this water-scarce region.
Frequently asked questions
Tolleson WWTF is located in Tolleson, Arizona, within Maricopa County, United States. The facility is situated on West Van Buren Street.
Tolleson WWTF serves approximately 28,445 residents in the city of Tolleson and surrounding areas.
Tolleson WWTF discharges treated effluent into the local watershed, which flows into the Gila River and eventually the Colorado River.
Tolleson WWTF operates under the U.S. Clean Water Act, with discharge regulated through an NPDES permit issued by the Arizona Department of Environmental Quality or the EPA.
For a medium-sized plant like Tolleson WWTF, secondary treatment is standard under the Clean Water Act. Advanced treatment may be required if the discharge is to sensitive waters or for water reuse.
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