Ranchester Wastewater Lagoons
Located In The Nenw, Section 20, Township 57 North, Range 85 West, Ranchester, WY 82839 · Sheridan County · Publicly Owned Treatment Works
- Average flow
- 0.12 MGD
- Design flow
- —
- NPDES permit
- WY0022161
- Effective
- Permit expires
- September 2030
- Population served
- —
- CWNS 2022
Ranchester Wastewater Lagoons is a publicly owned wastewater treatment works in Ranchester, Sheridan County, Wyoming treating an average of 0.12 million gallons per day. It discharges under NPDES permit WY0022161 (effective), which expires in September 2030, with 13 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Ranchester Wastewater Lagoons.
Available with a free Klarifi account
See the full treatment train at Ranchester Wastewater Lagoons: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 13
- Effluent violations
- 13
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Ranchester Wastewater Lagoons, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Ranchester Wastewater Lagoons, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wyoming
Sheridan · 12 mi away
2.11 MGD
Clearmont · 42 mi away
—
Buffalo · 44 mi away
0.75 MGD
Greybull · 53 mi away
0.07 MGD
Basin · 57 mi away
0.58 MGD
Manderson · 60 mi away
0.02 MGD
Ten Sleep · 62 mi away
0.15 MGD
Byron · 67 mi away
0.08 MGD
Ranchester Wastewater Lagoons: 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 May 7, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms