New London WWTP - Advanced Wastewater Treatment in New London, Iowa

New London WWTP is an advanced wastewater treatment facility located in New London, Henry County, Iowa, United States. The plant serves a population of 1,937 and operates as part of the municipal infrastructure for the community. The plant provides advanced treatment, which goes beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 3,558.28 thousand gallons per day and an average discharge volume of 908.50 thousand gallons per day, the facility operates well below its capacity. Under the U.S. Clean Water Act, such plants are regulated through National Pollutant Discharge Elimination System (NPDES) permits issued by the Iowa Department of Natural Resources. The treated effluent is discharged into a local waterway that ultimately drains into the Mississippi River basin. The plant's location inland, away from coastal areas, reduces direct marine impact. The advanced treatment level helps protect downstream water quality in the region's rivers and streams.

The plant discharges into a local watercourse that flows into the Mississippi River basin, which drains into the Gulf of Mexico. The advanced treatment process reduces nutrient loads, helping to mitigate downstream eutrophication and hypoxic zones in the Gulf. The facility's inland location and advanced treatment contribute to protecting local aquatic ecosystems and the broader watershed.