Big Piney Wastewater Lagoon
Big Piney, WY · Sublette County · Publicly Owned Treatment Works
- Average flow
- 0.14 MGD
- Design flow
- —
- NPDES permit
- WY0020133
- Effective
- Permit expires
- March 2028
- Population served
- —
- CWNS 2022
Big Piney Wastewater Lagoon is a publicly owned wastewater treatment works in Big Piney, Sublette County, Wyoming treating an average of 0.14 million gallons per day. Treatment on site includes uncovered lagoons. It discharges under NPDES permit WY0020133 (effective), which expires in March 2028, with 13 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Uncovered lagoons
Unlock
Unlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 13
- Effluent violations
- 6
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Big Piney Wastewater Lagoon, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Big Piney Wastewater Lagoon, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wyoming
Marbleton · 2 mi away
0.31 MGD
Thayne · 53 mi away
0.14 MGD
Cokeville · 55 mi away
0.04 MGD
Kemmerer · 56 mi away
0.23 MGD
Jackson · 69 mi away
1.94 MGD
Fort Washakie · 72 mi away
0.1 MGD
Dubois · 72 mi away
0.06 MGD
Lander · 74 mi away
1.24 MGD
Big Piney Wastewater Lagoon: 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 March 12, 2025.