How much wastewater does Laharpe Stp, City Of treat?

Laharpe Stp, City Of treats an average of 0.07 MGD and is permitted for a design flow of 0.61 MGD.

What treatment technology does Laharpe Stp, City Of use?

Klarifi has identified aerated lagoons at the Laharpe facility.

What is the NPDES permit for Laharpe Stp, City Of?

The facility discharges under NPDES permit ILG580093, currently effective, expiring May 2027.

Is Laharpe Stp, City Of in compliance?

Discharge monitoring reports show 11 violations at Laharpe Stp, City Of in the last three years, 11 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Laharpe Stp, City Of and how do I contact them?

Laharpe Stp, City Of is a publicly owned treatment works in Laharpe, Illinois. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Laharpe Stp, City Of

Laharpe, IL · Hancock County · Publicly Owned Treatment Works

Average flow: 0.07 MGD

Design flow: 0.61 MGD

NPDES permit: ILG580093; Effective

Permit expires: May 2027

Population served: 1,133; CWNS 2022

Laharpe Stp, City Of is a publicly owned wastewater treatment works in Laharpe, Hancock County, Illinois treating an average of 0.07 million gallons per day against a permitted design capacity of 0.61 MGD, serving about 1,133 residents. Treatment on site includes aerated lagoons. It discharges under NPDES permit ILG580093 (effective), which expires in May 2027, with 11 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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Compliance snapshot (last 3 years)

Total violations: 11

Effluent violations: 11

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

Key contacts

Decision-makers at Laharpe Stp, City Of.

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Laharpe Stp, 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 April 23, 2025.

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