What is the address of Mountainburg WWTP?

The address on the plant’s EPA facility record is 0.5Mi SW Of Hwy 282 & Hwy 71, Mountainburg, AR 72946, in Crawford County. Its coordinates are 35.6221, -94.1783. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Mountainburg WWTP treat?

Mountainburg WWTP treats an average of 0.03 MGD and is permitted for a design flow of 0.12 MGD.

What treatment technology does Mountainburg WWTP use?

Klarifi has identified one treatment structure or unit process at the Mountainburg facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Mountainburg WWTP?

The facility discharges under NPDES permit AR0021512, currently administratively continued, expiring November 2025.

Is Mountainburg WWTP in compliance?

Discharge monitoring reports show 107 violations at Mountainburg WWTP in the last three years, 107 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Mountainburg WWTP and how do I contact them?

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

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Mountainburg WWTP

0.5Mi SW Of Hwy 282 & Hwy 71, Mountainburg, AR 72946 · Crawford County · Publicly Owned Treatment Works

Average flow: 0.03 MGD

Design flow: 0.12 MGD

NPDES permit: AR0021512; Administratively continued

Permit expires: November 2025

Population served: 528; CWNS 2022

Mountainburg WWTP is a publicly owned wastewater treatment works in Mountainburg, Crawford County, Arkansas treating an average of 0.03 million gallons per day against a permitted design capacity of 0.12 MGD, serving about 528 residents. It discharges under NPDES permit AR0021512 (administratively continued), which expires in November 2025, with 107 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Mountainburg WWTP.

Available with a free Klarifi account

See the full treatment train at Mountainburg WWTP: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 107

Effluent violations: 107

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

Key contacts

Decision-makers at Mountainburg WWTP.

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Mountainburg 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 October 26, 2026; facility record last updated July 24, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms

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