What is the address of Irvington WWTP?

The address on the plant’s EPA facility record is North First Street, Irvington, IL 62848, in Washington County. Its coordinates are 38.4441, -89.1602. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Irvington WWTP treat?

Irvington WWTP treats an average of 0.05 MGD and is permitted for a design flow of 0.33 MGD.

What treatment technology does Irvington WWTP use?

Klarifi has identified 2 treatment structures and unit processes at the Irvington facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Irvington WWTP?

The facility discharges under NPDES permit ILG580006, currently effective, expiring May 2027.

Is Irvington WWTP in compliance?

Discharge monitoring reports show 2 violations at Irvington WWTP in the last three years, 2 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Irvington WWTP and how do I contact them?

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

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Irvington WWTP

North First Street, Irvington, IL 62848 · Washington County · Publicly Owned Treatment Works

Average flow: 0.05 MGD

Design flow: 0.33 MGD

NPDES permit: ILG580006; Effective

Permit expires: May 2027

Population served: 647; CWNS 2022

Irvington WWTP is a publicly owned wastewater treatment works in Irvington, Washington County, Illinois treating an average of 0.05 million gallons per day against a permitted design capacity of 0.33 MGD, serving about 647 residents. It discharges under NPDES permit ILG580006 (effective), which expires in May 2027, with 2 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Irvington WWTP.

Available with a free Klarifi account

See the full treatment train at Irvington WWTP: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 2

Effluent violations: 2

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

Key contacts

Decision-makers at Irvington WWTP.

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Nearby wastewater treatment plants in Illinois

Wamac Stp, City Of

Wamac · 4 mi away

0.14 MGD

Richview Stp, Village Of

Richview · 4 mi away

0.02 MGD

Centralia Stw Main, City Of

Centralia · 5 mi away

2.09 MGD

Hoyleton Stp, Village Of

Hoyleton · 6 mi away

0.04 MGD

Ashley Stp, City Of

Ashley · 9 mi away

0.03 MGD

Hoffman, Village Of

Hoffman · 9 mi away

0.06 MGD

Junction City Stp, Village Of

Junction City · 10 mi away

0.04 MGD

New Minden Stp, Village Of

Nashville · 11 mi away

0.02 MGD

Irvington 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 October 26, 2026; facility record last updated August 19, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms

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