What is the address of Hoffman WWTP?

The address on the plant’s EPA facility record is 127 Main Avenue PO Box 227, Hoffman, MN 56339, in Grant County. Its coordinates are 45.8262, -95.7752. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Hoffman WWTP treat?

Hoffman WWTP is permitted for a design flow of 0.16 MGD. Its average daily flow is not available in the current EPA data.

What treatment technology does Hoffman WWTP use?

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

What is the NPDES permit for Hoffman WWTP?

The facility discharges under NPDES permit MNG585134, currently expired, expiring November 2023.

Is Hoffman WWTP in compliance?

Discharge monitoring reports show 3 violations at Hoffman WWTP in the last three years. The full history is available in Klarifi.

Who operates Hoffman WWTP and how do I contact them?

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

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Hoffman WWTP

127 Main Avenue PO Box 227, Hoffman, MN 56339 · Grant County · Publicly Owned Treatment Works

Average flow: —

Design flow: 0.16 MGD

NPDES permit: MNG585134; Expired

Permit expires: November 2023

Population served: 698; CWNS 2022

Hoffman WWTP is a publicly owned wastewater treatment works in Hoffman, Grant County, Minnesota, serving about 698 residents. It discharges under NPDES permit MNG585134 (expired), which expires in November 2023, with 3 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Hoffman WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 3

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 Hoffman WWTP.

No verified contacts on file yet

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Nearby wastewater treatment plants in Minnesota

Farwell Kensington Sanitary D

Kensington · 7 mi away

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Barrett WWTP

Barrett · 8 mi away

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Evansville WWTP

Evansville · 12 mi away

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Lowry WWTP

Lowry · 15 mi away

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Elbow Lake WWTP

Elbow Lake · 15 mi away

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Garfield WWTP

Garfield · 16 mi away

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Alexandria Lake Area Sanitary District

Alexandria · 18 mi away

2.75 MGD

Morris WWTP

Morris · 19 mi away

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Hoffman 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 September 11, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biological nutrient removal · Tertiary treatment · all terms

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