How much wastewater does Villisca City Of STP treat?

Villisca City Of STP treats an average of 0.18 MGD and is permitted for a design flow of 1.95 MGD.

What treatment technology does Villisca City Of STP use?

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

What is the NPDES permit for Villisca City Of STP?

The facility discharges under NPDES permit IA0032549, currently effective, expiring March 2028.

Is Villisca City Of STP in compliance?

Discharge monitoring reports show 11 violations at Villisca City Of STP in the last three years, 11 of them effluent limit exceedances. The full history is available in Klarifi.

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

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

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Villisca City Of STP

Villisca, IA 50864 · Montgomery County · Publicly Owned Treatment Works

Average flow: 0.18 MGD

Design flow: 1.95 MGD

NPDES permit: IA0032549; Effective

Permit expires: March 2028

Population served: 1,309; CWNS 2022

Villisca City Of STP is a publicly owned wastewater treatment works in Villisca, Montgomery County, Iowa treating an average of 0.18 million gallons per day against a permitted design capacity of 1.95 MGD, serving about 1,309 residents. It discharges under NPDES permit IA0032549 (effective), which expires in March 2028, with 11 recorded violations in the last three years.

Treatment technology

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

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 11

Effluent violations: 11

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

Key contacts

1 verified contact for Villisca 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 Villisca City Of STP, plus the full compliance history and discharge data.

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Nearby wastewater treatment plants in Iowa

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Clarinda City Of STP

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Corning City Of STP

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New Market City Of STP

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Gravity, City Of-(southern Iowa Rural Water Association)

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Villisca 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 September 11, 2026.

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

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