How much wastewater does Joiner, City Of-WWTP treat?

Joiner, City Of-WWTP treats an average of 0.07 MGD and is permitted for a design flow of 0.1 MGD.

What treatment technology does Joiner, City Of-WWTP use?

Klarifi has identified uncovered lagoons at the Joiner facility.

What is the NPDES permit for Joiner, City Of-WWTP?

The facility discharges under NPDES permit AR0022152, currently effective, expiring September 2026.

Is Joiner, City Of-WWTP in compliance?

Discharge monitoring reports show 70 violations at Joiner, City Of-WWTP in the last three years, 51 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Joiner, City Of-WWTP and how do I contact them?

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

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Joiner, City Of-WWTP

Joiner, AR · Mississippi County · Publicly Owned Treatment Works

Average flow: 0.07 MGD

Design flow: 0.1 MGD

NPDES permit: AR0022152; Effective

Permit expires: September 2026

Population served: 498; CWNS 2022

Joiner, City Of-WWTP is a publicly owned wastewater treatment works in Joiner, Mississippi County, Arkansas treating an average of 0.07 million gallons per day against a permitted design capacity of 0.1 MGD, serving about 498 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit AR0022152 (effective), which expires in September 2026, with 70 recorded violations in the last three years.

Treatment technology

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

Uncovered lagoons

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Compliance snapshot (last 3 years)

Total violations: 70

Effluent violations: 51

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

Key contacts

Decision-makers at Joiner, City Of-WWTP.

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Joiner, City Of-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 July 24, 2026.

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