How much wastewater does Grand Rapids WWTP treat?

Grand Rapids WWTP treats an average of 5.8 MGD and is permitted for a design flow of 15.2 MGD.

What treatment technology does Grand Rapids WWTP use?

Klarifi has identified clarifiers, uncovered lagoons at the Grand Rapids facility.

What is the NPDES permit for Grand Rapids WWTP?

The facility discharges under NPDES permit MN0022080, currently expired, expiring January 2025.

Is Grand Rapids WWTP in compliance?

Discharge monitoring reports show 6 violations at Grand Rapids WWTP in the last three years, 6 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Grand Rapids WWTP and how do I contact them?

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

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Grand Rapids WWTP

Grand Rapids, MN · Itasca County · Publicly Owned Treatment Works

Average flow: 5.8 MGD

Design flow: 15.2 MGD

NPDES permit: MN0022080; Expired

Permit expires: January 2025

Population served: 14,815; CWNS 2022

Grand Rapids WWTP is a publicly owned wastewater treatment works in Grand Rapids, Itasca County, Minnesota treating an average of 5.8 million gallons per day against a permitted design capacity of 15.2 MGD, serving about 14,815 residents. Treatment on site includes clarifiers, uncovered lagoons. It discharges under NPDES permit MN0022080 (expired), which expires in January 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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Uncovered lagoons

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Compliance snapshot (last 3 years)

Total violations: 6

Effluent violations: 6

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

Key contacts

Decision-makers at Grand Rapids WWTP.

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Nearby wastewater treatment plants in Minnesota

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Floodwood WWTP

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Palisade WWTP

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Grand Rapids 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 11, 2026.

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