Overbrook WWTP - Secondary Treatment Plant in Overbrook, Kansas

Overbrook WWTP is a municipal wastewater treatment facility located in Overbrook, Kansas, serving a small community of around 937 people. The plant is situated in Osage County and operates as part of the local infrastructure to manage domestic wastewater from the area. The plant provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal facilities. With a designed capacity of 484.53 thousand gallons per day and an average discharge volume of 355.83 thousand gallons per day, the plant operates below its capacity, indicating room for future growth. The facility is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Kansas Department of Health and Environment. Treated effluent from the plant is discharged into nearby streams that flow into the Marais des Cygnes River, part of the Osage River basin, which ultimately drains into the Missouri River and then the Mississippi River. This watershed supports diverse aquatic life and provides water for agricultural and recreational uses downstream.

The plant discharges into local tributaries of the Marais des Cygnes River, which flows through eastern Kansas into the Osage River in Missouri. This river system supports a variety of fish and wildlife, including species such as channel catfish and largemouth bass. The watershed is primarily agricultural, and the plant's secondary treatment helps reduce nutrient loads that could otherwise contribute to algal blooms and oxygen depletion in downstream water bodies.