26,154 plants indexed worldwide.
Plants where treatment level information is not publicly available.
NEWTON WWTP serves approximately 15,751 people in Newton, Iowa. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge to protect local water quality.
New Hampton WWTP serves 3,660 residents in New Hampton, Iowa. The plant operates under the U.S. Clean Water Act, with NPDES permits regulating its discharge to protect local waterways.
New Albin WWTP serves 534 residents in New Albin, Iowa, as part of the municipal wastewater infrastructure. The plant operates under US EPA and Iowa DNR regulations.
NEVADA WWTP serves the city of Nevada, Iowa, treating wastewater for approximately 6,900 residents. The plant discharges into local waterways within the Mississippi River basin.
Muscatine WWTP serves approximately 22,881 people in Muscatine, Iowa. The plant discharges treated wastewater into the Mississippi River, supporting downstream water quality in the Gulf of Mexico watershed.
Mount Vernon WWTP serves approximately 4,549 residents in Mount Vernon, Iowa. The plant operates under the U.S. Clean Water Act, ensuring treated effluent meets federal standards before discharge.
Mount Pleasant STP East serves Henry County, Iowa, treating wastewater for approximately 3,563 residents. The plant operates under U.S. EPA and Iowa DNR regulations for municipal wastewater treatment.
Mount Pleasant WWTP serves the city of Mount Pleasant, Iowa, treating wastewater for a population of approximately 9,688. The plant operates under the US Clean Water Act and EPA NPDES permitting framework.
Mount Ayr WWTP serves the community of Mount Ayr, Iowa, with a population of 1,721. The plant operates under the U.S. Clean Water Act, which mandates secondary treatment for municipal wastewater facilities.
Morning Sun STL is a municipal wastewater treatment plant serving 872 people in Louisa County, Iowa, United States. It operates under the US Clean Water Act framework.
Monticello WWTP serves approximately 3,607 residents in Monticello, Iowa. The facility operates under U.S. EPA and Iowa DNR regulations for municipal wastewater treatment.
Mitchellville WWTP serves the Iowa Correctional Institution for Women and the surrounding community in Mitchellville, Iowa. The plant treats wastewater for a population of 2,280.
Merrill WWTP serves 755 residents in Plymouth County, Iowa, as part of the municipal wastewater infrastructure. The plant operates under the US Clean Water Act framework.
Mason City WWTP serves approximately 29,000 residents in Mason City, Iowa. The facility operates under the U.S. Clean Water Act, treating municipal wastewater before discharge into local waterways.
Marshalltown WWTP serves approximately 26,000 residents in Marshalltown, Iowa, as part of the city's municipal wastewater infrastructure. The plant discharges treated effluent into local waterways within the Iowa River basin.
Maquoketa WWTP serves approximately 6,100 residents in Maquoketa, Iowa. The plant discharges treated wastewater into the Maquoketa River, part of the Mississippi River basin.
MANSON WWTP serves Calhoun County, Iowa, treating wastewater for a population of 1,844. The plant operates under US EPA and Iowa DNR regulations, discharging to local waterways.
Manchester WWTP serves approximately 5,100 residents in Manchester, Iowa. The facility discharges treated wastewater into local waterways under the U.S. Clean Water Act framework.
Madrid WWTP serves the Boone County, Iowa community with a population of 2,418. The plant operates under U.S. EPA and Iowa DNR regulations for municipal wastewater treatment.
Lohrville WWTP serves the community of Lohrville, Iowa, treating wastewater for approximately 453 residents. The plant operates under US EPA and Iowa DNR regulations for small municipal systems.