How much wastewater does Tuba City WWTP treat?

Tuba City WWTP treats an average of 0.42 MGD and is permitted for a design flow of 1.1 MGD.

What treatment technology does Tuba City WWTP use?

Klarifi has identified aerated lagoons, uncovered lagoons at the Tuba City facility.

What is the NPDES permit for Tuba City WWTP?

The facility discharges under NPDES permit NN0020290, currently effective, expiring April 2027.

Is Tuba City WWTP in compliance?

Discharge monitoring reports show 138 violations at Tuba City WWTP in the last three years, 94 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Tuba City WWTP and how do I contact them?

Tuba City WWTP is a publicly owned treatment works in Tuba City, Arizona. Klarifi lists 4 verified decision-maker contacts for this facility, available with a free trial.

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Tuba City WWTP

Tuba City, AZ · Coconino County · Publicly Owned Treatment Works

Average flow: 0.42 MGD

Design flow: 1.1 MGD

NPDES permit: NN0020290; Effective

Permit expires: April 2027

Population served: —; CWNS 2022

Tuba City WWTP is a publicly owned wastewater treatment works in Tuba City, Coconino County, Arizona treating an average of 0.42 million gallons per day against a permitted design capacity of 1.1 MGD. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit NN0020290 (effective), which expires in April 2027, with 138 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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Uncovered lagoons

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Compliance snapshot (last 3 years)

Total violations: 138

Effluent violations: 94

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

Key contacts

4 verified contacts for Tuba City WWTP, with validated emails and direct phone numbers.

Unlock 4 verified contacts (1 more than shown)

Names, validated emails and direct phone numbers for decision-makers at Tuba City WWTP, plus the full compliance history and discharge data.

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Tuba City 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 November 6, 2025.

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