How much wastewater does South Fork Sd STP treat?

South Fork Sd STP treats an average of 0.01 MGD and is permitted for a design flow of 0.4 MGD.

What treatment technology does South Fork Sd STP use?

Klarifi has identified uncovered lagoons at the Tovey facility.

What is the NPDES permit for South Fork Sd STP?

The facility discharges under NPDES permit IL0050148, currently effective, expiring May 2029.

Is South Fork Sd STP in compliance?

Discharge monitoring reports show 6 violations at South Fork Sd STP in the last three years, 6 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates South Fork Sd STP and how do I contact them?

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

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South Fork Sd STP

Tovey, IL · Christian County · Publicly Owned Treatment Works

Average flow: 0.01 MGD

Design flow: 0.4 MGD

NPDES permit: IL0050148; Effective

Permit expires: May 2029

Population served: —; CWNS 2022

South Fork Sd STP is a publicly owned wastewater treatment works in Tovey, Christian County, Illinois treating an average of 0.01 million gallons per day against a permitted design capacity of 0.4 MGD. Treatment on site includes uncovered lagoons. It discharges under NPDES permit IL0050148 (effective), which expires in May 2029, with 6 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: 6

Effluent violations: 6

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

Key contacts

Decision-makers at South Fork Sd STP.

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Nearby wastewater treatment plants in Illinois

Kincaid STP

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Pawnee Stp, Village Of

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Divernon Stp, Village Of

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Stonington Stp, Village Of

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Auburn Stp, City Of

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South Fork Sd 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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