Kayenta WWTF
1 M East Of Kayenta, Kayenta, AZ 86033 · Navajo County · Publicly Owned Treatment Works
- Average flow
- 0.26 MGD
- Design flow
- 0.9 MGD
- NPDES permit
- NN0020281
- Effective
- Permit expires
- January 2029
- Population served
- —
- CWNS 2022
Kayenta WWTF is a publicly owned wastewater treatment works in Kayenta, Navajo County, Arizona treating an average of 0.26 million gallons per day against a permitted design capacity of 0.9 MGD. It discharges under NPDES permit NN0020281 (effective), which expires in January 2029, with 142 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in August 2024.
Treatment technology
One treatment structure or unit process identified at Kayenta WWTF.
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See the full treatment train at Kayenta WWTF: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 142
- Effluent violations
- 66
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Kayenta WWTF in EPA's ICIS system.
- Formal actions
- 2
- 1 since FY2020
- Compliance actions
- $101M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Aug 2024
NTUA Kayenta WWTP
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $1.1M
EPA's description of the case:
“This is an Administrative Order on Consent (AOC) between the Navajo Tribal Utility Authority (NTUA) and the U.S. EPA to achieve compliance with the Clean Water Act and the Facility's National…”
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Source: EPA ECHO, civil enforcement case 09-2016-1509.
Full case history with a free Klarifi account
Every action against Kayenta WWTF with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
4 verified contacts for Kayenta WWTF, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Kayenta WWTF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Arizona
Chinle · 52 mi away
0.24 MGD
Tuba City · 74 mi away
0.44 MGD
Ganado · 80 mi away
—
Fort Defiance · 99 mi away
0.4 MGD
Grand Canyon · 118 mi away
0.07 MGD
Winslow · 119 mi away
—
Holbrook · 126 mi away
—
Flagstaff · 132 mi away
2.15 MGD
Kayenta WWTF: 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 August 5, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms