What is the address of Sweet Grass WWTF?

The address on the plant’s EPA facility record is South Of Canadian Border Rd, East Of Rr, Sweet Grass, MT 59484, in Toole County. Its coordinates are 48.9960, -111.9546. For some plants the record holds the utility’s mailing address rather than the plant gate.

What treatment technology does Sweet Grass WWTF use?

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

What is the NPDES permit for Sweet Grass WWTF?

The facility discharges under NPDES permit MT0031437, currently administratively continued, expiring January 2023.

Is Sweet Grass WWTF in compliance?

Discharge monitoring reports show no violations at Sweet Grass WWTF in the last three years.

Who operates Sweet Grass WWTF and how do I contact them?

Sweet Grass WWTF is a publicly owned treatment works in Sweet Grass, Montana. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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Sweet Grass WWTF

South Of Canadian Border Rd, East Of Rr, Sweet Grass, MT 59484 · Toole County · Publicly Owned Treatment Works

Average flow: —

Design flow: —

NPDES permit: MT0031437; Administratively continued

Permit expires: January 2023

Population served: —; CWNS 2022

Sweet Grass WWTF is a publicly owned wastewater treatment works in Sweet Grass, Toole County, Montana. It discharges under NPDES permit MT0031437 (administratively continued), which expires in January 2023, with 0 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Sweet Grass WWTF.

Available with a free Klarifi account

See the full treatment train at Sweet Grass WWTF: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 0

Effluent violations: 0

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

Key contacts

1 verified contact for Sweet Grass WWTF, with validated emails and direct phone numbers.

Unlock 1 verified contact

Names, validated emails and direct phone numbers for decision-makers at Sweet Grass WWTF, plus the full compliance history and discharge data.

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Nearby wastewater treatment plants in Montana

Sunburst WWTF

Sunburst · 9 mi away

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Town Of Kevin WWTF

Kevin · 17 mi away

0.0083 MGD

City Of Cut Bank WWTF

Cut Bank · 29 mi away

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City Of Shelby Wastewater Lagoons

Shelby · 33 mi away

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Town Of Valier WWTF

Valier · 49 mi away

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City Of Conrad WWTF

Conrad · 56 mi away

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Town Of Chester WWTF

Chester · 57 mi away

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Brady County Water Sewer District

Brady · 66 mi away

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Sweet Grass WWTF: 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 February 9, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms

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