Ketchum Sun Valley WWTP
Ketchum, ID · Blaine County · Publicly Owned Treatment Works
- Average flow
- 1.02 MGD
- Design flow
- 4 MGD
- NPDES permit
- ID0020281
- Administratively continued
- Permit expires
- July 2017
- Population served
- 5,338
- CWNS 2022
Ketchum Sun Valley WWTP is a publicly owned wastewater treatment works in Ketchum, Blaine County, Idaho treating an average of 1.02 million gallons per day against a permitted design capacity of 4 MGD, serving about 5,338 residents. Treatment on site includes biogas balloons. It discharges under NPDES permit ID0020281 (administratively continued), which expires in July 2017, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Biogas balloons
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Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Ketchum Sun Valley WWTP.
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Nearby wastewater treatment plants in Idaho
Fairfield · 32 mi away
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Carey · 33 mi away
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Mackay · 41 mi away
0.07 MGD
Richfield · 44 mi away
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Shoshone · 49 mi away
0.13 MGD
Jerome · 65 mi away
3.59 MGD
Glenns Ferry · 69 mi away
—
Buhl · 75 mi away
0.29 MGD
Ketchum Sun Valley WWTP: 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 5, 2025.