How much wastewater does Red Oak City Of STP treat?

Red Oak City Of STP is permitted for a design flow of 3.6 MGD. Its average daily flow is not available in the current EPA data.

What is the NPDES permit for Red Oak City Of STP?

The facility discharges under NPDES permit IA0040266, currently effective, expiring January 2030.

Is Red Oak City Of STP in compliance?

Discharge monitoring reports show 7 violations at Red Oak City Of STP in the last three years, 5 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Red Oak City Of STP and how do I contact them?

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

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Red Oak City Of STP

Q: What treatment technology does Red Oak City Of STP use?

Klarifi has identified clarifiers, uncovered lagoons, biogas silos, biogas balloons at the Red Oak facility.

Red Oak, IA · Montgomery County · Publicly Owned Treatment Works

Average flow: —

Design flow: 3.6 MGD

NPDES permit: IA0040266; Effective

Permit expires: January 2030

Population served: 5,945; CWNS 2022

Red Oak City Of STP is a publicly owned wastewater treatment works in Red Oak, Montgomery County, Iowa, serving about 5,945 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas silos, biogas balloons. It discharges under NPDES permit IA0040266 (effective), which expires in January 2030, with 7 recorded violations in the last three years.

Treatment technology

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

Clarifiers

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Uncovered lagoons

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Biogas silos

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Biogas balloons

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Compliance snapshot (last 3 years)

Total violations: 7

Effluent violations: 5

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

Key contacts

Decision-makers at Red Oak City Of STP.

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Red Oak City Of STP: 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 March 28, 2025.

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