Lodge Grass, Town Of WWTF
Lodge Grass, MT · Big Horn County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.28 MGD
- NPDES permit
- MT0021890
- Effective
- Permit expires
- December 2028
- Population served
- 559
- CWNS 2022
Lodge Grass, Town Of WWTF is a publicly owned wastewater treatment works in Lodge Grass, Big Horn County, Montana, serving about 559 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit MT0021890 (effective), which expires in December 2028, with 56 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 56
- Effluent violations
- 54
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Lodge Grass, Town Of WWTF, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Lodge Grass, Town Of WWTF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Montana
Crow Agency · 20 mi away
—
Lame Deer · 40 mi away
0.47 MGD
Billings · 63 mi away
20.31 MGD
Laurel · 71 mi away
0.29 MGD
Forsyth · 73 mi away
0.19 MGD
Bridger · 75 mi away
—
Park City · 77 mi away
0.1 MGD
Joliet · 78 mi away
0.06 MGD
Lodge Grass, Town Of 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 November 6, 2025.