How much wastewater does Mondamin City Of STP treat?

Mondamin City Of STP treats an average of 0.03 MGD and is permitted for a design flow of 1.22 MGD.

What treatment technology does Mondamin City Of STP use?

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

What is the NPDES permit for Mondamin City Of STP?

The facility discharges under NPDES permit IA0023507, currently administratively continued, expiring June 2007.

Is Mondamin City Of STP in compliance?

Discharge monitoring reports show 34 violations at Mondamin City Of STP in the last three years, 34 of them effluent limit exceedances. The full history is available in Klarifi.

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

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

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Mondamin City Of STP

Mondamin, IA 51557 · Harrison County · Publicly Owned Treatment Works

Average flow: 0.03 MGD

Design flow: 1.22 MGD

NPDES permit: IA0023507; Administratively continued

Permit expires: June 2007

Population served: 442; CWNS 2022

Mondamin City Of STP is a publicly owned wastewater treatment works in Mondamin, Harrison County, Iowa treating an average of 0.03 million gallons per day against a permitted design capacity of 1.22 MGD, serving about 442 residents. It discharges under NPDES permit IA0023507 (administratively continued), which expires in June 2007, with 34 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Mondamin City Of STP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 34

Effluent violations: 34

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

Key contacts

1 verified contact for Mondamin City Of STP, with validated emails and direct phone numbers.

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

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Nearby wastewater treatment plants in Iowa

Modale, City Of STP

Modale · 6 mi away

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Little Sioux River Sioux STP

Little Sioux · 7 mi away

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Pisgah City Of STP

Pisgah · 9 mi away

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Missouri Valley City Of STP

Missouri Valley · 12 mi away

0.34 MGD

Logan WWTP

Logan · 13 mi away

0.08 MGD

Woodbine WWTP

Woodbine · 15 mi away

0.13 MGD

Blencoe City Of STP

Blencoe · 16 mi away

0.01 MGD

Moorhead City Of STP

Moorhead · 16 mi away

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Mondamin 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 October 26, 2026; facility record last updated March 20, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms

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