Great Plains Hall Wastewater
PO Box 396, Fort Washakie, WY 82514 · Fremont County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.1 MGD
- NPDES permit
- WYG589102
- Effective
- Permit expires
- March 2027
- Population served
- —
- CWNS 2022
Great Plains Hall Wastewater is a publicly owned wastewater treatment works in Fort Washakie, Fremont County, Wyoming. It discharges under NPDES permit WYG589102 (effective), which expires in March 2027. EPA has recorded 1 formal enforcement action naming the plant, the latest in September 2024.
Treatment technology
One treatment structure or unit process identified at Great Plains Hall Wastewater.
Available with a free Klarifi account
See the full treatment train at Great Plains Hall Wastewater: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- —
- Effluent violations
- —
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 Great Plains Hall Wastewater in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $22,480
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Sep 2024
Great Plains (Arapaho Community) Lagoon
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $22,480
Source: EPA ECHO, civil enforcement case 08-2024-0245.
Full case history with a free Klarifi account
Every action against Great Plains Hall Wastewater with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Great Plains Hall Wastewater.
No verified contacts on file yet
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Nearby wastewater treatment plants in Wyoming
Hudson · 7 mi away
0.22 MGD
Lander · 15 mi away
1.11 MGD
Ethete · 17 mi away
0.01 MGD
Fort Washakie · 18 mi away
0.16 MGD
Thermopolis · 49 mi away
0.27 MGD
Dubois · 69 mi away
0.06 MGD
Worland · 76 mi away
0.76 MGD
Meeteetse · 83 mi away
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Great Plains Hall Wastewater: 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 April 13, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Filter press · FOG · all terms