Meriden WWTF - Secondary Wastewater Treatment Plant in Plainfield, New Hampshire

Meriden WWTF is a municipal wastewater treatment facility located in Plainfield, New Hampshire, United States. The plant serves a small community of approximately 900 residents, reflecting its role in managing local wastewater in a rural setting. As a secondary treatment plant, Meriden WWTF meets the standard requirements under the U.S. Clean Water Act, which mandates secondary treatment for municipal facilities. The plant has a designed capacity of 302.83 million gallons per year and currently discharges 151.42 million gallons annually, indicating operational headroom for future growth. The plant's treated effluent is discharged into local waterways that ultimately drain into the Connecticut River basin. This watershed supports diverse aquatic life and provides recreational and ecological value to the region. The plant's operations help protect downstream water quality in this sensitive river system.

Meriden WWTF discharges into tributaries of the Connecticut River, which flows southward through New England and empties into Long Island Sound. The Connecticut River basin supports diverse fish populations, including migratory species, and provides critical habitat for aquatic life. The plant's secondary treatment helps reduce nutrient and pollutant loads, protecting downstream ecosystems.