How much wastewater does Asbury City Of STP treat?

Asbury City Of STP is permitted for a design flow of 1.63 MGD. Its average daily flow is not available in the current EPA data.

What is the NPDES permit for Asbury City Of STP?

The facility discharges under NPDES permit IA0069922, currently effective, expiring October 2029.

Is Asbury City Of STP in compliance?

Discharge monitoring reports show 1 violation at Asbury City Of STP in the last three years. The full history is available in Klarifi.

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

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

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Asbury City Of STP

Q: What treatment technology does Asbury City Of STP use?

Klarifi has identified clarifiers, uncovered lagoons, carrousels / oxidation ditches at the Asbury facility.

Asbury, IA · Dubuque County · Publicly Owned Treatment Works

Average flow: —

Design flow: 1.63 MGD

NPDES permit: IA0069922; Effective

Permit expires: October 2029

Population served: 4,554; CWNS 2022

Asbury City Of STP is a publicly owned wastewater treatment works in Asbury, Dubuque County, Iowa, serving about 4,554 residents. Treatment on site includes clarifiers, uncovered lagoons, carrousels / oxidation ditches. It discharges under NPDES permit IA0069922 (effective), which expires in October 2029, with 1 recorded violation 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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Carrousels / oxidation ditches

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Compliance snapshot (last 3 years)

Total violations: 1

Effluent violations: 0

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

Key contacts

Decision-makers at Asbury City Of STP.

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Asbury 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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