Overview
Walnut Ridge WWTP serves Pocahontas, Arkansas, treating wastewater for approximately 4,815 residents. The plant discharges into the local watershed, contributing to the region's water quality management.
Walnut Ridge WWTP is a municipal wastewater treatment facility located in Pocahontas, Arkansas, United States. It serves a population of around 4,815 residents, reflecting a small to medium-sized agglomeration typical of rural communities in the region. As a US-based plant, it operates under the Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all discharges. Plants of this scale commonly employ secondary treatment to meet federal standards for organic matter and suspended solids removal. The treated effluent is discharged into a local water body, likely a tributary of the Black River or the White River system, which flows into the Mississippi River and ultimately the Gulf of Mexico. This downstream connection underscores the plant's role in protecting both local aquatic habitats and the broader Mississippi River Basin ecosystem.
Environmental context
The plant discharges into the Black River watershed, which flows into the White River and then the Mississippi River, eventually reaching the Gulf of Mexico. This river system supports diverse aquatic life, including fish and migratory birds, and is ecologically sensitive to nutrient loading. Effective treatment helps prevent eutrophication and maintains water quality for downstream communities and habitats.
Frequently asked questions
Walnut Ridge WWTP is located at 1083 Oak Street, Pocahontas, Randolph County, Arkansas, United States.
The plant serves approximately 4,815 residents in the Pocahontas area.
The plant discharges treated effluent into a local water body within the Black River watershed, which flows to the White River and Mississippi River.
As a US plant, it operates under the Clean Water Act and requires an NPDES permit issued by the Arkansas Department of Energy and Environment or the EPA.
Plants of this scale typically use secondary treatment (biological treatment) to meet EPA standards for BOD and TSS removal, often with disinfection.
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