ST JOHNSBURY STP, Saint Johnsbury

Overview

ST JOHNSBURY STP serves Saint Johnsbury, Vermont, treating wastewater for approximately 8,400 residents. The plant discharges into the local watershed, ultimately draining to the Connecticut River and Long Island Sound.

ST JOHNSBURY STP is a municipal wastewater treatment plant located in Saint Johnsbury, Vermont, serving a population of about 8,400 people. The facility is situated in Caledonia County and is part of the town's essential infrastructure for managing domestic wastewater. As a US-based plant, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting, typically administered by the Vermont Department of Environmental Conservation. For a community of this size, secondary treatment is the standard requirement to meet federal and state water quality standards. The plant's treated effluent is discharged into a receiving water body that flows into the Passumpsic River, a tributary of the Connecticut River. The Connecticut River drains into Long Island Sound, making the plant's performance relevant to downstream water quality in this major estuary.

Environmental context

The plant's discharge enters the Passumpsic River, which joins the Connecticut River, one of New England's largest rivers. The Connecticut River flows south to Long Island Sound, a vital estuary supporting diverse marine life, including fish, shellfish, and migratory birds. The watershed is ecologically sensitive, with efforts to maintain water quality for recreation and aquatic habitats.

Frequently asked questions

ST JOHNSBURY STP is located at 799 Bay Street in Saint Johnsbury, Vermont, within Caledonia County.

The plant serves approximately 8,400 residents in the Saint Johnsbury area.

The plant discharges treated effluent into a local water body that flows into the Passumpsic River, a tributary of the Connecticut River.

As a US facility, it operates under the Clean Water Act and is regulated through the NPDES permit program, typically enforced by the Vermont Department of Environmental Conservation.

For a community of this size, secondary treatment is standard, which includes biological processes to remove organic matter and suspended solids before discharge.