Ashley WWTP and Sewers - Advanced Wastewater Treatment in Delaware County, Ohio

Ashley WWTP and Sewers is a municipal wastewater treatment facility located in Oxford Township, Delaware County, Ohio. It serves a population of approximately 1,216 residents, reflecting a small community scale. The plant is situated inland, away from coastal influences, and operates within the regulatory framework of the United States. The facility provides advanced treatment, which goes beyond the secondary treatment standard required by the US Clean Water Act. Advanced treatment typically includes nutrient removal or other tertiary processes to further reduce pollutants. The plant has a designed capacity of 719.23 thousand gallons per day and currently discharges 757.08 thousand gallons per day, indicating operation near its capacity. The treated effluent is discharged into local streams that ultimately drain into the Ohio River basin. This watershed supports diverse aquatic life and provides drinking water for downstream communities. The plant's advanced treatment helps protect water quality in this ecologically important region.

The plant discharges into tributaries of the Scioto River, which flows into the Ohio River and eventually the Mississippi River. This watershed supports diverse aquatic species and is a critical migratory corridor. The advanced treatment helps reduce nutrient loading, protecting downstream ecosystems from eutrophication.