How much wastewater does Osceola WWTP treat?

Osceola WWTP treats an average of 2.5 MGD and is permitted for a design flow of 3.25 MGD.

What is the NPDES permit for Osceola WWTP?

The facility discharges under NPDES permit AR0021580, currently effective, expiring September 2028.

Is Osceola WWTP in compliance?

Discharge monitoring reports show 14 violations at Osceola WWTP in the last three years, 8 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Osceola WWTP and how do I contact them?

Osceola WWTP is a publicly owned treatment works in Osceola, Arkansas. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Osceola WWTP

Osceola, AR · Mississippi County · Publicly Owned Treatment Works

Average flow: 2.5 MGD

Design flow: 3.25 MGD

NPDES permit: AR0021580; Effective

Permit expires: September 2028

Population served: 6,976; CWNS 2022

Osceola WWTP is a publicly owned wastewater treatment works in Osceola, Mississippi County, Arkansas treating an average of 2.5 million gallons per day against a permitted design capacity of 3.25 MGD, serving about 6,976 residents. It discharges under NPDES permit AR0021580 (effective), which expires in September 2028, with 14 recorded violations in the last three years.

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

Treatment structure data not yet analyzed for this facility.

Compliance snapshot (last 3 years)

Total violations: 14

Effluent violations: 8

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

Decision-makers at Osceola WWTP.

No verified contacts on file yet

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Osceola WWTP: frequently asked questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed September 11, 2026; facility record last updated March 26, 2025.

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