How much wastewater does Marion, City Of treat?

Marion, City Of treats an average of 1.33 MGD and is permitted for a design flow of 1.6 MGD.

What treatment technology does Marion, City Of use?

Klarifi has identified aerated lagoons, uncovered lagoons at the Marion facility.

What is the NPDES permit for Marion, City Of?

The facility discharges under NPDES permit AR0021971, currently effective, expiring December 2028.

Is Marion, City Of in compliance?

Discharge monitoring reports show 95 violations at Marion, City Of in the last three years, 27 of them effluent limit exceedances. The full history is available in Klarifi.

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

Marion, City Of is a publicly owned treatment works in Marion, Arkansas. Klarifi lists 3 verified decision-maker contacts for this facility, available with a free trial.

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Marion, City Of

Marion, AR · Crittenden County · Publicly Owned Treatment Works

Average flow: 1.33 MGD

Design flow: 1.6 MGD

NPDES permit: AR0021971; Effective

Permit expires: December 2028

Population served: 14,007; CWNS 2022

Marion, City Of is a publicly owned wastewater treatment plant in Marion, Crittenden County, Arkansas treating an average of 1.33 million gallons per day against a permitted design capacity of 1.6 MGD, serving about 14,007 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit AR0021971 (effective), which expires in December 2028, with 95 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: 95

Effluent violations: 27

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

Key contacts

3 verified contacts for Marion, City Of, with validated emails and direct phone numbers.

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

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Nearby wastewater treatment plants in Arkansas

West Memphis Wastewater Treatment Facility

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Edmondson, City Of

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Crawfordsville, City Of

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Turrell, City Of

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Earle Waterworks

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Gilmore, City Of

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Birdsong, City Of WWTP

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Horseshoe Lake Wwt Facility

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Marion, 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 August 9, 2026.

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