What is the address of Manson WWTP?

The address on the plant’s EPA facility record is Udall Ave, Manson, IA 50563, in Calhoun County. Its coordinates are 42.5097, -94.5284. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Manson WWTP treat?

Manson WWTP treats an average of 0.08 MGD and is permitted for a design flow of 0.97 MGD.

What treatment technology does Manson WWTP use?

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

What is the NPDES permit for Manson WWTP?

The facility discharges under NPDES permit IA0027189, currently effective, expiring May 2030.

Is Manson WWTP in compliance?

Discharge monitoring reports show 6 violations at Manson WWTP in the last three years, 6 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Manson WWTP and how do I contact them?

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

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Manson WWTP

Udall Ave, Manson, IA 50563 · Calhoun County · Publicly Owned Treatment Works

Average flow: 0.08 MGD

Design flow: 0.97 MGD

NPDES permit: IA0027189; Effective

Permit expires: May 2030

Population served: 1,709; CWNS 2022

Manson WWTP is a publicly owned wastewater treatment works in Manson, Calhoun County, Iowa treating an average of 0.08 million gallons per day against a permitted design capacity of 0.97 MGD, serving about 1,709 residents. It discharges under NPDES permit IA0027189 (effective), which expires in May 2030, with 6 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Manson WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 6

Effluent violations: 6

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

Key contacts

1 verified contact for Manson WWTP, with validated emails and direct phone numbers.

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

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Manson 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 March 28, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biological nutrient removal · Tertiary treatment · all terms

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