What is the address of Crookston WWTP?

The address on the plant’s EPA facility record is County Road 233, Crookston, MN 56716, in Polk County. Its coordinates are 47.7687, -96.6514. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Crookston WWTP treat?

Crookston WWTP is permitted for a design flow of 1.4 MGD. Its average daily flow is not available in the current EPA data.

What treatment technology does Crookston WWTP use?

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

What is the NPDES permit for Crookston WWTP?

The facility discharges under NPDES permit MN0021423, currently effective, expiring March 2031.

Is Crookston WWTP in compliance?

Discharge monitoring reports show 7 violations at Crookston WWTP in the last three years. The full history is available in Klarifi.

Who operates Crookston WWTP and how do I contact them?

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

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Crookston WWTP

County Road 233, Crookston, MN 56716 · Polk County · Publicly Owned Treatment Works

Average flow: —

Design flow: 1.4 MGD

NPDES permit: MN0021423; Effective

Permit expires: March 2031

Population served: 7,482; CWNS 2022

Crookston WWTP is a publicly owned wastewater treatment works in Crookston, Polk County, Minnesota, serving about 7,482 residents. It discharges under NPDES permit MN0021423 (effective), which expires in March 2031, with 7 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Crookston WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 7

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 Crookston WWTP.

No verified contacts on file yet

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Nearby wastewater treatment plants in Minnesota

Fisher WWTP

Fisher Township · 7 mi away

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Climax WWTP

Climax · 13 mi away

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Red Lake Falls WWTP

Red Lake Falls Township · 18 mi away

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Nielsville WWTP

Nielsville · 18 mi away

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Fertile WWTP

Fertile · 23 mi away

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Shelly WWTP

Shelly · 23 mi away

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Saint Hilaire WWTP

Saint Hilaire · 26 mi away

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Plummer

Plummer · 29 mi away

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Crookston 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 October 26, 2026; facility record last updated March 19, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms

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