How much wastewater does Goodfield STP treat?

Goodfield STP treats an average of 0.05 MGD and is permitted for a design flow of 0.4 MGD.

What treatment technology does Goodfield STP use?

Klarifi has identified aerated lagoons, uncovered lagoons at the Goodfield facility.

What is the NPDES permit for Goodfield STP?

The facility discharges under NPDES permit IL0048054, currently effective, expiring May 2031.

Is Goodfield STP in compliance?

Discharge monitoring reports show 22 violations at Goodfield STP in the last three years, 1 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Goodfield STP and how do I contact them?

Goodfield STP is a publicly owned treatment works in Goodfield, Illinois. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Goodfield STP

Goodfield, IL · Woodford County · Publicly Owned Treatment Works

Average flow: 0.05 MGD

Design flow: 0.4 MGD

NPDES permit: IL0048054; Effective

Permit expires: May 2031

Population served: 471; CWNS 2022

Goodfield STP is a publicly owned wastewater treatment works in Goodfield, Woodford County, Illinois treating an average of 0.05 million gallons per day against a permitted design capacity of 0.4 MGD, serving about 471 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit IL0048054 (effective), which expires in May 2031, with 22 recorded violations in the last three years.

Treatment technology

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

Aerated lagoons

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Uncovered lagoons

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Compliance snapshot (last 3 years)

Total violations: 22

Effluent violations: 1

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

Key contacts

Decision-makers at Goodfield STP.

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Goodfield STP: 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 November 7, 2025.

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