What is the address of Warrensburg STP?

The address on the plant’s EPA facility record is 900 West County Highway 20, Warrensburg, IL 62573, in Macon County. Its coordinates are 39.9343, -89.0817. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Warrensburg STP treat?

Warrensburg STP treats an average of 0.06 MGD and is permitted for a design flow of 0.63 MGD.

What treatment technology does Warrensburg STP use?

Klarifi has identified one treatment structure or unit process at the Warrensburg facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Warrensburg STP?

The facility discharges under NPDES permit IL0034215, currently administratively continued, expiring June 2026.

Is Warrensburg STP in compliance?

Discharge monitoring reports show 36 violations at Warrensburg STP in the last three years, 14 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Warrensburg STP and how do I contact them?

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

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Warrensburg STP

900 West County Highway 20, Warrensburg, IL 62573 · Macon County · Publicly Owned Treatment Works

Average flow: 0.06 MGD

Design flow: 0.63 MGD

NPDES permit: IL0034215; Administratively continued

Permit expires: June 2026

Population served: 1,555; CWNS 2022

Warrensburg STP is a publicly owned wastewater treatment works in Warrensburg, Macon County, Illinois treating an average of 0.06 million gallons per day against a permitted design capacity of 0.63 MGD, serving about 1,555 residents. It discharges under NPDES permit IL0034215 (administratively continued), which expires in June 2026, with 36 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Warrensburg STP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 36

Effluent violations: 14

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

Key contacts

1 verified contact for Warrensburg STP, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at Warrensburg STP, plus the full compliance history and discharge data.

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Kenney STP

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Warrensburg 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 October 26, 2026; facility record last updated November 6, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms

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