How much wastewater does Petersburg WWTP treat?

Petersburg WWTP treats an average of 0.08 MGD.

What treatment technology does Petersburg WWTP use?

Klarifi has identified clarifiers at the Petersburg facility.

What is the NPDES permit for Petersburg WWTP?

The facility discharges under NPDES permit MIG570217, currently administratively continued, expiring April 2025.

Is Petersburg WWTP in compliance?

Discharge monitoring reports show 6 violations at Petersburg WWTP in the last three years. The full history is available in Klarifi.

Who operates Petersburg WWTP and how do I contact them?

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

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Petersburg WWTP

Petersburg, MI · Monroe County · Publicly Owned Treatment Works

Average flow: 0.08 MGD

Design flow: —

NPDES permit: MIG570217; Administratively continued

Permit expires: April 2025

Population served: 4,550; CWNS 2022

Petersburg WWTP is a publicly owned wastewater treatment works in Petersburg, Monroe County, Michigan treating an average of 0.08 million gallons per day, serving about 4,550 residents. Treatment on site includes clarifiers. It discharges under NPDES permit MIG570217 (administratively continued), which expires in April 2025, with 6 recorded violations in the last three years.

Treatment technology

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

Clarifiers

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Compliance snapshot (last 3 years)

Total violations: 6

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 Petersburg WWTP.

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Petersburg 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 September 11, 2026; facility record last updated September 2, 2025.

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