How much wastewater does Montour City Of STP treat?

Montour City Of STP treats an average of 0.03 MGD and is permitted for a design flow of 0.17 MGD.

What treatment technology does Montour City Of STP use?

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

What is the NPDES permit for Montour City Of STP?

The facility discharges under NPDES permit IA0058700, currently effective, expiring January 2031.

Is Montour City Of STP in compliance?

Discharge monitoring reports show 13 violations at Montour City Of STP in the last three years, 9 of them effluent limit exceedances. The full history is available in Klarifi.

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

Montour City Of STP is a publicly owned treatment works in Montour, Iowa. Klarifi lists 2 verified decision-maker contacts for this facility, available with a free trial.

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Montour City Of STP

Montour, IA 50173 · Tama County · Publicly Owned Treatment Works

Average flow: 0.03 MGD

Design flow: 0.17 MGD

NPDES permit: IA0058700; Effective

Permit expires: January 2031

Population served: 326; CWNS 2022

Montour City Of STP is a publicly owned wastewater treatment works in Montour, Tama County, Iowa treating an average of 0.03 million gallons per day against a permitted design capacity of 0.17 MGD, serving about 326 residents. It discharges under NPDES permit IA0058700 (effective), which expires in January 2031, with 13 recorded violations in the last three years.

Treatment technology

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

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 13

Effluent violations: 9

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

Key contacts

2 verified contacts for Montour 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 Montour City Of STP, plus the full compliance history and discharge data.

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Nearby wastewater treatment plants in Iowa

Sac And Fox Settlement Lagoon

Tama · 2 mi away

0.21 MGD

Legrand City Of STP

Le Grand · 3 mi away

0.08 MGD

Toledo Wastewater Treatment Facility

Toledo · 6 mi away

0.43 MGD

Garwin City Of STP

Garwin · 7 mi away

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Green Mountain - Iowa Regional Utilities Assoc.

Garwin · 7 mi away

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Tama City Of STP

Tama · 8 mi away

0.39 MGD

Gilman City Of STP

Gilman · 9 mi away

0.02 MGD

Marshalltown City Of STP

Marshalltown · 11 mi away

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Montour 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 7, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms

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