How much wastewater does Lamar, City Of treat?

Lamar, City Of treats an average of 0.1 MGD and is permitted for a design flow of 0.11 MGD.

What treatment technology does Lamar, City Of use?

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

What is the NPDES permit for Lamar, City Of?

The facility discharges under NPDES permit AR0035491, currently effective, expiring June 2029.

Is Lamar, City Of in compliance?

Discharge monitoring reports show 86 violations at Lamar, City Of in the last three years, 86 of them effluent limit exceedances. The full history is available in Klarifi.

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

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

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Lamar, City Of

Lamar, AR · Johnson County · Publicly Owned Treatment Works

Average flow: 0.1 MGD

Design flow: 0.11 MGD

NPDES permit: AR0035491; Effective

Permit expires: June 2029

Population served: 2,379; CWNS 2022

Lamar, City Of is a publicly owned wastewater treatment plant in Lamar, Johnson County, Arkansas treating an average of 0.1 million gallons per day against a permitted design capacity of 0.11 MGD, serving about 2,379 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit AR0035491 (effective), which expires in June 2029, with 86 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: 86

Effluent violations: 86

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

Key contacts

Decision-makers at Lamar, City Of.

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Lamar, 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 25, 2026.

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