How much wastewater does Hatfield WWTP treat?

Hatfield WWTP treats an average of 0.05 MGD and is permitted for a design flow of 0.07 MGD.

What treatment technology does Hatfield WWTP use?

Klarifi has identified uncovered lagoons at the Hatfield facility.

What is the NPDES permit for Hatfield WWTP?

The facility discharges under NPDES permit AR0035483, currently effective, expiring March 2027.

Is Hatfield WWTP in compliance?

Discharge monitoring reports show 27 violations at Hatfield WWTP in the last three years, 27 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Hatfield WWTP and how do I contact them?

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

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Hatfield WWTP

Hatfield, AR · Polk County · Publicly Owned Treatment Works

Average flow: 0.05 MGD

Design flow: 0.07 MGD

NPDES permit: AR0035483; Effective

Permit expires: March 2027

Population served: 345; CWNS 2022

Hatfield WWTP is a publicly owned wastewater treatment works in Hatfield, Polk County, Arkansas treating an average of 0.05 million gallons per day against a permitted design capacity of 0.07 MGD, serving about 345 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit AR0035483 (effective), which expires in March 2027, with 27 recorded violations in the last three years.

Treatment technology

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

Uncovered lagoons

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Compliance snapshot (last 3 years)

Total violations: 27

Effluent violations: 27

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

Key contacts

Decision-makers at Hatfield WWTP.

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Hatfield 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 July 25, 2026.

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