Lodge Grass, Town Of WWTF
Lodge Grass, MT 59050 · Big Horn County · Publicly Owned Treatment Works
- Average flow
- 0.0089 MGD
- 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 treating an average of 0.0089 million gallons per day against a permitted design capacity of 0.28 MGD, serving about 559 residents. It discharges under NPDES permit MT0021890 (effective), which expires in December 2028, with 56 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in August 2019.
Treatment technology
2 treatment structures and unit processes identified at Lodge Grass, Town Of WWTF.
Available with a free Klarifi account
See the full treatment train at Lodge Grass, Town Of WWTF: structures, unit processes and planned upgrades, with exact unit counts.
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.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Lodge Grass, Town Of WWTF in EPA's ICIS system.
- Formal actions
- 2
- 0 since FY2020
- Compliance actions
- $4M
- required by EPA orders
- EPA inspections
- 2
- latest Sep 2004
Latest case · Aug 2019
Town of Lodge Grass
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $198
EPA's description of the case:
“The Town failed to report discharge monitoring data to the EPA for periods in 2017 through 2019.”
Source: EPA ECHO, civil enforcement case 08-2019-0065.
Full case history with a free Klarifi account
Every action against Lodge Grass, Town Of WWTF with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
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
0.48 MGD
Billings · 63 mi away
20.32 MGD
Laurel · 71 mi away
0.29 MGD
Forsyth · 73 mi away
0.23 MGD
Bridger · 75 mi away
0.04 MGD
Fromberg · 75 mi away
0.04 MGD
Park City · 77 mi away
0.08 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 October 26, 2026; facility record last updated November 6, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms