What is the address of Humphrey, City Of - WWTP?

The address on the plant’s EPA facility record is Union Street, Humphrey, AR 72073, in Jefferson County. Its coordinates are 34.4192, -91.7141. For some plants the record holds the utility’s mailing address rather than the plant gate.

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

Humphrey, City Of - WWTP treats an average of 0.02 MGD and is permitted for a design flow of 0.1 MGD.

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

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

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

The facility discharges under NPDES permit AR0022284, currently effective, expiring August 2027.

Is Humphrey, City Of - WWTP in compliance?

Discharge monitoring reports show 260 violations at Humphrey, City Of - WWTP in the last three years, 260 of them effluent limit exceedances. The full history is available in Klarifi.

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

Humphrey, City Of - WWTP is a publicly owned treatment works in Humphrey, Arkansas. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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Humphrey, City Of - WWTP

Union Street, Humphrey, AR 72073 · Jefferson County · Publicly Owned Treatment Works

Average flow: 0.02 MGD

Design flow: 0.1 MGD

NPDES permit: AR0022284; Effective

Permit expires: August 2027

Population served: 467; CWNS 2022

Humphrey, City Of - WWTP is a publicly owned wastewater treatment works in Humphrey, Jefferson County, Arkansas treating an average of 0.02 million gallons per day against a permitted design capacity of 0.1 MGD, serving about 467 residents. It discharges under NPDES permit AR0022284 (effective), which expires in August 2027, with 260 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Humphrey, City Of - WWTP.

Available with a free Klarifi account

See the full treatment train at Humphrey, City Of - WWTP: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 260

Effluent violations: 260

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

Key contacts

1 verified contact for Humphrey, City Of - WWTP, with validated emails and direct phone numbers.

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

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Humphrey, 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 October 26, 2026; facility record last updated April 23, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms

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