How much wastewater does Shelbyville Stw, City Of treat?

Shelbyville Stw, City Of treats an average of 0.43 MGD and is permitted for a design flow of 2 MGD.

What treatment technology does Shelbyville Stw, City Of use?

Klarifi has identified clarifiers, uncovered lagoons, biogas silos at the Shelbyville facility.

What is the NPDES permit for Shelbyville Stw, City Of?

The facility discharges under NPDES permit IL0021890, currently effective, expiring September 2029.

Is Shelbyville Stw, City Of in compliance?

Discharge monitoring reports show 24 violations at Shelbyville Stw, City Of in the last three years, 23 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Shelbyville Stw, City Of and how do I contact them?

Shelbyville Stw, City Of is a publicly owned treatment works in Shelbyville, Illinois. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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Shelbyville Stw, City Of

Shelbyville, IL · Shelby County · Publicly Owned Treatment Works

Average flow: 0.43 MGD

Design flow: 2 MGD

NPDES permit: IL0021890; Effective

Permit expires: September 2029

Population served: 4,495; CWNS 2022

Shelbyville Stw, City Of is a publicly owned wastewater treatment plant in Shelbyville, Shelby County, Illinois treating an average of 0.43 million gallons per day against a permitted design capacity of 2 MGD, serving about 4,495 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas silos. It discharges under NPDES permit IL0021890 (effective), which expires in September 2029, with 24 recorded violations in the last three years.

Treatment technology

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

Clarifiers

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Uncovered lagoons

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Biogas silos

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Compliance snapshot (last 3 years)

Total violations: 24

Effluent violations: 23

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

Key contacts

1 verified contact for Shelbyville Stw, City Of, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at Shelbyville Stw, City Of, plus the full compliance history and discharge data.

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Shelbyville Stw, City Of: 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 August 11, 2026.

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