City Of Winslow - WWTP
Winslow, AZ · Navajo County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 2.2 MGD
- NPDES permit
- AZ0026310
- Effective
- Permit expires
- February 2031
- Population served
- —
- CWNS 2022
City Of Winslow - WWTP is a publicly owned wastewater treatment works in Winslow, Navajo County, Arizona. Treatment on site includes clarifiers, uncovered lagoons, carrousels / oxidation ditches, biogas silos. It discharges under NPDES permit AZ0026310 (effective), which expires in February 2031, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Uncovered lagoons
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Carrousels / oxidation ditches
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Biogas silos
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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 City Of Winslow - WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Arizona
Holbrook · 30 mi away
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Flagstaff · 54 mi away
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Payson · 68 mi away
0.69 MGD
Ganado · 78 mi away
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Tuba City · 79 mi away
0.42 MGD
Cottonwood · 80 mi away
1.04 MGD
Williams · 86 mi away
—
Whiteriver · 94 mi away
0.58 MGD
City Of Winslow - 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 July 28, 2026.