CLARENCE WWTP - Secondary Treatment Plant in Shelby County, Missouri

CLARENCE WWTP is a municipal wastewater treatment facility located on County Road 305 in Shelby County, Missouri. The plant serves a small community of approximately 1,065 residents, providing secondary treatment to remove organic matter and suspended solids from domestic wastewater. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal facilities of this scale. With a designed capacity of 556.45 volume units and a current discharge volume of 541.31, the plant operates near its design capacity, indicating consistent treatment demand from the local population. The treated effluent is discharged into nearby streams that drain into the Mississippi River basin, ultimately reaching the Gulf of Mexico. As a secondary treatment plant in an inland agricultural region, it plays a key role in protecting local water quality and downstream aquatic ecosystems from nutrient pollution.

The plant discharges into local tributaries of the Salt River, which flows into the Mississippi River and eventually the Gulf of Mexico. The surrounding watershed is primarily agricultural, with row crops and livestock operations. The plant's secondary treatment helps reduce biochemical oxygen demand and suspended solids, protecting aquatic life in receiving streams from excessive nutrient loading and oxygen depletion.