Nicholson Water and Sewer Assoc | Wastewater Treatment Plant in Nicholson, Mississippi

Nicholson Water and Sewer Assoc is a municipal wastewater treatment plant located on Royal Street in Nicholson, Pearl River County, Mississippi. The facility serves a population of approximately 1,884 residents, classifying it as a small community system within the state's wastewater infrastructure. The plant provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal discharges. With a designed capacity of 681.37 thousand gallons per day and a discharge volume matching that figure, the plant operates at full capacity. As a U.S. facility, it operates under an EPA National Pollutant Discharge Elimination System (NPDES) permit issued by the Mississippi Department of Environmental Quality, ensuring compliance with water quality standards. The treated effluent is discharged into local streams that drain into the Pearl River basin, ultimately reaching the Gulf of Mexico. The plant plays a key role in protecting downstream water quality in this ecologically sensitive region, which supports diverse aquatic life and recreational uses.

The plant discharges into tributaries of the Pearl River, which flows south through Mississippi and Louisiana into the Gulf of Mexico. The Pearl River basin supports a variety of fish and wildlife, including several species of freshwater mussels and migratory birds. The Gulf Coast downstream is an important estuarine environment for shrimp, crabs, and finfish, making nutrient and pathogen control from wastewater critical to ecosystem health.