Dekalb T DJunction STP and On Site - Advanced Wastewater Treatment in Town of De Kalb, New York

Dekalb T DJunction STP and On Site is a municipal wastewater treatment facility located in De Kalb Junction, Town of De Kalb, Saint Lawrence County, New York. The plant serves a small population of 250 residents, reflecting its role in a rural community in northern New York. The plant provides advanced treatment, which goes beyond the secondary treatment standard required by the US Clean Water Act. Advanced treatment typically removes nutrients like nitrogen and phosphorus, ensuring high-quality effluent. The plant has a designed capacity of 283.91 thousand gallons per day and currently discharges 98.42 thousand gallons per day, indicating it operates well below capacity. The treated effluent is discharged into local streams that drain into the Oswegatchie River, a tributary of the St. Lawrence River, which flows into the Atlantic Ocean via the Gulf of St. Lawrence. The plant's advanced treatment helps protect the sensitive aquatic ecosystems of the St. Lawrence River watershed, which supports diverse fish populations and migratory birds.

The plant discharges into local watercourses that feed the Oswegatchie River, which flows into the St. Lawrence River. The St. Lawrence River is a major waterway connecting the Great Lakes to the Atlantic Ocean, supporting a rich ecosystem including lake sturgeon, American eel, and numerous waterfowl. The advanced treatment level helps minimize nutrient loading and protects downstream habitats in this ecologically significant watershed.