Greenport V STP, Village of Greenport

Overview

Greenport V STP is an advanced wastewater treatment plant serving 2,400 people in the Village of Greenport, New York. It discharges treated effluent near the Long Island Sound coast.

Greenport V STP is a wastewater treatment facility located in the Village of Greenport, Suffolk County, New York, on the North Fork of Long Island. The plant serves a population of approximately 2,400 residents and operates with advanced treatment capabilities, reflecting the community's commitment to protecting local water quality. The plant has a designed capacity of 2,460.51 cubic meters per day and currently discharges an average volume of 999.35 cubic meters per day. As an advanced treatment facility, it likely incorporates nutrient removal processes to meet stringent discharge limits. Under the U.S. Clean Water Act, such plants operate under National Pollutant Discharge Elimination System (NPDES) permits issued by the New York State Department of Environmental Conservation, which set limits on pollutants to safeguard receiving waters. The treated effluent from Greenport V STP ultimately reaches the Long Island Sound, a vital estuary that supports diverse marine life, including shellfish, finfish, and migratory birds. The plant's coastal location and advanced treatment help minimize nutrient loading, reducing the risk of algal blooms and hypoxia in the Sound. This contributes to the ecological health of the region, which is also important for local recreation and fisheries.

Environmental context

Greenport V STP discharges into the Long Island Sound watershed, a major estuary that connects to the Atlantic Ocean via the East River and Block Island Sound. The Long Island Sound is ecologically sensitive, supporting diverse habitats such as eelgrass beds, tidal wetlands, and shellfish reefs. Nutrient pollution from wastewater can lead to hypoxia and harmful algal blooms, making advanced treatment critical for maintaining water quality and aquatic life.

Frequently asked questions

Greenport V STP is located at 211 Third Street in the Village of Greenport, Suffolk County, New York, on the North Fork of Long Island.

The plant serves a population of approximately 2,400 residents in the Village of Greenport.

The plant discharges treated effluent into the Long Island Sound, a major estuary that connects to the Atlantic Ocean. The advanced treatment process helps reduce nutrient pollution and protect the Sound's ecosystem.

As a U.S. facility, Greenport V STP operates under the Clean Water Act and is regulated by an NPDES permit issued by the New York State Department of Environmental Conservation, which sets discharge limits to protect water quality.

For small communities in New York, advanced treatment is often required when discharging to sensitive waters like the Long Island Sound. This typically includes biological treatment with nutrient removal to meet strict nitrogen and phosphorus limits.