What is the address of Vandalia Stp, City Of?

The address on the plant’s EPA facility record is Interstate 70 And US 51, Vandalia, IL 62471, in Fayette County. Its coordinates are 38.9797, -89.0919. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Vandalia Stp, City Of treat?

Vandalia Stp, City Of treats an average of 0.38 MGD.

What treatment technology does Vandalia Stp, City Of use?

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

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

The facility discharges under NPDES permit ILL023574, currently effective, expiring December 2030.

Is Vandalia Stp, City Of in compliance?

Discharge monitoring reports show no violations at Vandalia Stp, City Of in the last three years.

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

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

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Vandalia Stp, City Of

Interstate 70 And US 51, Vandalia, IL 62471 · Fayette County · Publicly Owned Treatment Works

Average flow: 0.38 MGD

Design flow: —

NPDES permit: ILL023574; Effective

Permit expires: December 2030

Population served: 6,662; CWNS 2022

Vandalia Stp, City Of is a publicly owned wastewater treatment works in Vandalia, Fayette County, Illinois treating an average of 0.38 million gallons per day, serving about 6,662 residents. It discharges under NPDES permit ILL023574 (effective), which expires in December 2030, with 0 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Vandalia Stp, City Of.

Available with a free Klarifi account

See the full treatment train at Vandalia Stp, City Of: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 0

Effluent violations: 0

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

Key contacts

Decision-makers at Vandalia Stp, City Of.

No verified contacts on file yet

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Nearby wastewater treatment plants in Illinois

Brownstown Stp, Village Of

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Mulberry Grove Sd

Mulberry Grove · 10 mi away

0.01 MGD

Ramsey Stp, Village Of

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Vandalia 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 21, 2026; facility record last updated August 9, 2026.

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