Sweet Grass WWTF
Sweet Grass, MT · 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. Treatment on site includes uncovered lagoons. It discharges under NPDES permit MT0031437 (administratively continued), which expires in January 2023, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Uncovered lagoons
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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.
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Names, validated emails and direct phone numbers for decision-makers at Sweet Grass WWTF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Montana
Sunburst · 9 mi away
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Kevin · 17 mi away
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Cut Bank · 29 mi away
0.17 MGD
Shelby · 33 mi away
0.53 MGD
Valier · 49 mi away
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Conrad · 56 mi away
0.16 MGD
Chester · 57 mi away
—
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 September 11, 2026; facility record last updated February 9, 2025.