RYAN WWTP - Secondary Wastewater Treatment in Delaware County, Iowa

RYAN WWTP is a municipal wastewater treatment plant located on 300th Street in Delaware County, Iowa, United States. The facility serves a small community of 361 residents, providing essential sanitation services for this rural area. The plant operates with secondary treatment, which is the standard level required by the US Clean Water Act for municipal wastewater facilities. With a designed capacity of 397.47 volume units and an actual discharge volume of 151.42, the plant has ample capacity to handle current flows. As a US facility, it operates under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Iowa Department of Natural Resources, ensuring compliance with federal water quality standards. The treated effluent from RYAN WWTP is discharged into local streams that are part of the Upper Mississippi River basin. These waterways eventually flow into the Mississippi River, which is a major ecological and economic corridor for the central United States. The plant's secondary treatment helps protect downstream aquatic habitats and supports the overall health of the watershed.

RYAN WWTP discharges into local tributaries of the Upper Mississippi River basin, which ultimately drain into the Mississippi River. The Mississippi River supports diverse aquatic life and is a critical migratory route for birds and fish. The plant's secondary treatment reduces organic pollutants and suspended solids, helping maintain water quality in this ecologically important river system.