Lidderdale WWTP - Secondary Wastewater Treatment in Lidderdale, Iowa

Lidderdale WWTP is a municipal wastewater treatment plant located in Lidderdale, Iowa, United States. The facility serves a small population of 202 residents, reflecting its role in a rural community. As a secondary treatment plant, it meets the standard requirements under the US Clean Water Act for reducing organic pollutants and suspended solids before discharge. The plant has a designed capacity of 140.06 units and currently processes a wastewater discharge volume of 109.78 units, indicating operational capacity within its design limits. Secondary treatment typically involves biological processes such as activated sludge or trickling filters to achieve regulatory compliance. The treated effluent is discharged into local waterways that ultimately drain into the Mississippi River Basin. The plant's operations help protect downstream water quality and aquatic ecosystems in the region, supporting the environmental health of Iowa's rivers and streams.

Lidderdale WWTP discharges into local tributaries that flow into the Raccoon River, a major tributary of the Des Moines River, which eventually reaches the Mississippi River. This watershed supports diverse aquatic life and provides drinking water for downstream communities. The plant's secondary treatment reduces nutrient and pollutant loads, helping to mitigate eutrophication risks in receiving waters.