RYEGATE STP - East Ryegate, Vermont Wastewater Treatment Plant

RYEGATE STP is a municipal wastewater treatment plant located in East Ryegate, Vermont, within the United States. It serves a small population of 110 residents, reflecting its role as a local facility for a rural community in Caledonia County. The plant provides secondary treatment, which is the standard level required under the U.S. Clean Water Act for municipal wastewater. With a designed capacity of 37.85 million gallons and an annual discharge volume of 26.50 million gallons, the plant operates well within its capacity. As a small facility, it is subject to state-level NPDES permitting overseen by the Vermont Department of Environmental Conservation. The treated effluent is discharged into a local water body that ultimately drains into the Connecticut River watershed, which flows south to Long Island Sound. This downstream connection highlights the plant's role in protecting water quality in the broader New England river system and the Atlantic coastal environment.

The plant discharges into a tributary of the Connecticut River, which flows through Vermont, New Hampshire, Massachusetts, and Connecticut before emptying into Long Island Sound. This watershed supports diverse aquatic life, including migratory fish species such as Atlantic salmon and American eel. The plant's secondary treatment helps reduce nutrient and pollutant loads, contributing to the ecological health of the river and the Sound.