Miami WWTF - Central Heights-Midland City, Arizona Wastewater Treatment Plant

Miami WWTF is a municipal wastewater treatment facility located on Old Apache Trail in Central Heights-Midland City, Gila County, Arizona. It serves a small population of 1,937 residents in this unincorporated community. The plant is situated in a semi-arid region at an elevation of approximately 3,500 feet. As a small-scale facility in the United States, Miami WWTF is subject to the Clean Water Act and National Pollutant Discharge Elimination System (NPDES) permitting, administered by the Arizona Department of Environmental Quality. The plant discharges treated effluent to a local watercourse that ultimately drains into the Salt River watershed, part of the larger Gila River basin. This arid region relies heavily on water reclamation for downstream uses, including irrigation and habitat support. The facility plays a role in protecting local water quality and sustaining the ecological health of the surrounding desert environment.

Miami WWTF discharges into a tributary of the Salt River, which flows into the Gila River and eventually the Colorado River. The receiving waters support diverse aquatic life and are important for regional water supply. The plant's operations help maintain water quality in this arid watershed, where effluent contributes to streamflow and downstream ecosystems.