Chester WWTP - Secondary Wastewater Treatment in Chester, Iowa

Chester WWTP is a municipal wastewater treatment plant located on River Street in Chester, Iowa, a small community in Howard County. The facility serves a population of 158 and operates under the regulatory framework of the United States Clean Water Act, which requires secondary treatment for municipal discharges. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 75.71 volume units and a discharge volume matching that figure, the facility is sized to handle the community's wastewater load. As a small plant in a rural setting, it is subject to state-level NPDES permitting under EPA oversight. The treated effluent is discharged to a local receiving water body, which ultimately drains into the Upper Mississippi River basin. This watershed supports diverse aquatic life and provides recreational and ecological benefits to the region. The plant's operation helps protect downstream water quality in the Mississippi River system.

Chester WWTP discharges into a local stream that flows into the Upper Mississippi River basin. The Mississippi River is a major ecological corridor supporting fish, migratory birds, and diverse aquatic habitats. The plant's secondary treatment helps reduce nutrient and organic loads, contributing to the health of this extensive river system.