How much wastewater does Nashville Stp, City Of treat?

Nashville Stp, City Of treats an average of 0.28 MGD and is permitted for a design flow of 1.7 MGD.

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

The facility discharges under NPDES permit IL0027081, currently effective, expiring April 2027.

Is Nashville Stp, City Of in compliance?

Discharge monitoring reports show 10 violations at Nashville Stp, City Of in the last three years, 10 of them effluent limit exceedances. The full history is available in Klarifi.

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

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

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Nashville Stp, City Of

Nashville, IL · Washington County · Publicly Owned Treatment Works

Average flow: 0.28 MGD

Design flow: 1.7 MGD

NPDES permit: IL0027081; Effective

Permit expires: April 2027

Population served: 3,410; CWNS 2022

Nashville Stp, City Of is a publicly owned wastewater treatment works in Nashville, Washington County, Illinois treating an average of 0.28 million gallons per day against a permitted design capacity of 1.7 MGD, serving about 3,410 residents. It discharges under NPDES permit IL0027081 (effective), which expires in April 2027, with 10 recorded violations in the last three years.

Treatment technology

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

Treatment structure data not yet analyzed for this facility.

Compliance snapshot (last 3 years)

Total violations: 10

Effluent violations: 10

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

Key contacts

1 verified contact for Nashville Stp, City Of, with validated emails and direct phone numbers.

Unlock 1 verified contact

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

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Nashville 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 August 19, 2026.

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