Arrow Rock WWTP - Secondary Treatment Plant in Arrow Rock, Missouri

Arrow Rock WWTP is a municipal wastewater treatment facility located in Arrow Rock, Saline County, Missouri. The plant serves a small population of 216 residents, reflecting the rural character of this historic village along the Missouri River region. The plant provides secondary treatment, which is the standard biological treatment process required under the US Clean Water Act for municipal facilities. With a designed capacity of 83.28 units and an average daily discharge of 60.57 units, the plant operates at approximately 73% of its capacity, indicating adequate headroom for current demand. The treated effluent from Arrow Rock WWTP ultimately drains into the Missouri River watershed, a major tributary of the Mississippi River system. This river system supports diverse aquatic life and provides drinking water for downstream communities. The plant's secondary treatment helps protect water quality in this ecologically significant basin.

Arrow Rock WWTP discharges into the Missouri River watershed, which flows into the Mississippi River and eventually the Gulf of Mexico. The Missouri River supports a variety of fish species and migratory birds. The plant's secondary treatment reduces organic pollutants and suspended solids, helping to maintain the ecological health of this important river system.