How much wastewater does Chinle WWTF treat?

Chinle WWTF treats an average of 0.71 MGD and is permitted for a design flow of 0.78 MGD.

What is the NPDES permit for Chinle WWTF?

The facility discharges under NPDES permit NN0020265, currently administratively continued, expiring August 2023.

Is Chinle WWTF in compliance?

Discharge monitoring reports show 160 violations at Chinle WWTF in the last three years, 108 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Chinle WWTF and how do I contact them?

Chinle WWTF is a publicly owned treatment works in Chinle, Arizona. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Chinle WWTF

Chinle, AZ · Apache County · Publicly Owned Treatment Works

Average flow: 0.71 MGD

Design flow: 0.78 MGD

NPDES permit: NN0020265; Administratively continued

Permit expires: August 2023

Population served: —; CWNS 2022

Chinle WWTF is a publicly owned wastewater treatment works in Chinle, Apache County, Arizona treating an average of 0.71 million gallons per day against a permitted design capacity of 0.78 MGD. It discharges under NPDES permit NN0020265 (administratively continued), which expires in August 2023, with 160 recorded violations in the last three years.

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

Treatment structure data not yet analyzed for this facility.

Compliance snapshot (last 3 years)

Total violations: 160

Effluent violations: 108

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

Decision-makers at Chinle WWTF.

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Nearby wastewater treatment plants in Arizona

Ganado WWTP

Ganado · 33 mi away

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Window Rock Wastewater Treatment Facility

Fort Defiance · 47 mi away

0.39 MGD

Kayenta WWTF

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Painted Mesa Water Reclamation Facility

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Tuba City WWTP

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City Of Winslow - WWTP

Winslow · 100 mi away

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Rio De Flag WWTP

Flagstaff · 134 mi away

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Tusayan Sanitary District

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0.03 MGD

Chinle 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 September 11, 2026; facility record last updated November 3, 2025.

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