Overview
Hazelton STP is a secondary wastewater treatment plant serving 753 people in Hazelton, Idaho. It discharges 272.55 megaliters annually and operates under U.S. EPA NPDES permitting.
Hazelton STP is a municipal wastewater treatment facility located on Railroad Street in Hazelton, Idaho, within Jerome County. The plant serves a small population of 753 residents and is part of the region's essential water infrastructure. The plant provides secondary treatment, a standard level required by the U.S. Clean Water Act for facilities of this scale. With a designed capacity of 514.81 megaliters and an annual discharge volume of 272.55 megaliters, it operates well within its capacity. Regulatory oversight is provided through the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Idaho Department of Environmental Quality. The treated effluent is discharged to a local waterway, contributing to the Snake River basin, which ultimately drains to the Columbia River and the Pacific Ocean. The plant plays a key role in protecting downstream water quality in this agriculturally intensive region of southern Idaho.
Environmental context
The plant discharges into a tributary of the Snake River, which flows through the arid Snake River Plain before joining the Columbia River. The downstream environment supports diverse aquatic life and is important for irrigation and recreation. Protecting water quality in this basin is critical for regional agriculture and the health of the Columbia River ecosystem.
Frequently asked questions
Hazelton STP is located on Railroad Street in Hazelton, Idaho, within Jerome County, United States.
The plant serves a population of 753 residents in the Hazelton area.
The plant discharges treated effluent to a local waterway that flows into the Snake River basin, ultimately reaching the Columbia River and the Pacific Ocean.
The plant operates under the U.S. Clean Water Act, with an NPDES permit issued by the Idaho Department of Environmental Quality, which sets discharge limits and monitoring requirements.
For small communities in the U.S., secondary treatment is standard, as required by the Clean Water Act. This typically involves biological processes to reduce organic matter and suspended solids.
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