Florence South WRF - Wastewater Treatment Plant in Florence, Arizona

Florence South WRF is a wastewater treatment facility located in Florence, Arizona, serving a population of approximately 10,500. The plant is situated in Pinal County, an inland area in the southwestern United States with a semi-arid climate. As a US municipal wastewater plant, Florence South WRF operates under the Clean Water Act's National Pollutant Discharge Elimination System (NPDES) permit program. For plants serving around 10,000 people, secondary treatment is typically required to meet effluent standards for biochemical oxygen demand and total suspended solids. The plant's treated effluent likely discharges to a local waterway or is used for reuse applications, common in arid regions. The area is part of the Gila River watershed, which flows into the Colorado River and eventually the Gulf of California. Proper treatment helps protect downstream water quality and supports local water conservation efforts.

Florence South WRF is located in the Gila River basin, a major tributary of the Colorado River. The Gila River flows through central Arizona and joins the Colorado River near Yuma, ultimately reaching the Gulf of California. The region's arid climate makes water resources scarce, and treated wastewater is often reused for irrigation or groundwater recharge. The plant's operations help protect the local watershed from nutrient pollution and support the ecological health of the Gila River system.