How much wastewater does Waldo, City Of treat?

Waldo, City Of treats an average of 0.02 MGD and is permitted for a design flow of 0.35 MGD.

What is the NPDES permit for Waldo, City Of?

The facility discharges under NPDES permit AR0043508, currently effective, expiring April 2028.

Is Waldo, City Of in compliance?

Discharge monitoring reports show 10 violations at Waldo, City Of in the last three years, 10 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Waldo, City Of and how do I contact them?

Waldo, City Of is a publicly owned treatment works in Waldo, Arkansas. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Waldo, City Of

Waldo, AR · Columbia County · Publicly Owned Treatment Works

Average flow: 0.02 MGD

Design flow: 0.35 MGD

NPDES permit: AR0043508; Effective

Permit expires: April 2028

Population served: 1,150; CWNS 2022

Waldo, City Of is a publicly owned wastewater treatment plant in Waldo, Columbia County, Arkansas treating an average of 0.02 million gallons per day against a permitted design capacity of 0.35 MGD, serving about 1,150 residents. It discharges under NPDES permit AR0043508 (effective), which expires in April 2028, with 10 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: 10

Effluent violations: 10

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

Key contacts

Decision-makers at Waldo, City Of.

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Waldo, City Of: 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 24, 2026.

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