Ten Sleep Wastewater Lagoons
Ten Sleep, WY · Washakie County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- —
- NPDES permit
- WYG740962
- Terminated
- Permit expires
- July 2026
- Population served
- —
- CWNS 2022
Ten Sleep Wastewater Lagoons is a publicly owned wastewater treatment works in Ten Sleep, Washakie County, Wyoming. Treatment on site includes aerated lagoons. It discharges under NPDES permit WYG740962 (terminated), which expires in July 2026, with 14 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 14
- Effluent violations
- 14
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Ten Sleep Wastewater Lagoons, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Ten Sleep Wastewater Lagoons, plus the full compliance history and discharge data.
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Manderson · 30 mi away
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Basin · 38 mi away
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Buffalo · 40 mi away
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Greybull · 45 mi away
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Thermopolis · 46 mi away
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Kaycee · 47 mi away
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Sheridan · 60 mi away
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Ten Sleep 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 September 11, 2026; facility record last updated April 13, 2025.