How much wastewater does Walcott City Of STP (south) treat?

Walcott City Of STP (south) treats an average of 0.45 MGD and is permitted for a design flow of 3 MGD.

What treatment technology does Walcott City Of STP (south) use?

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

What is the NPDES permit for Walcott City Of STP (south)?

The facility discharges under NPDES permit IA0061891, currently effective, expiring September 2031.

Is Walcott City Of STP (south) in compliance?

Discharge monitoring reports show 33 violations at Walcott City Of STP (south) in the last three years, 15 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Walcott City Of STP (south) and how do I contact them?

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

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Walcott City Of STP (south)

Walcott, IA 52773 · Scott County · Publicly Owned Treatment Works

Average flow: 0.45 MGD

Design flow: 3 MGD

NPDES permit: IA0061891; Effective

Permit expires: September 2031

Population served: 1,551; CWNS 2022

Walcott City Of STP (south) is a publicly owned wastewater treatment works in Walcott, Scott County, Iowa treating an average of 0.45 million gallons per day against a permitted design capacity of 3 MGD, serving about 1,551 residents. It discharges under NPDES permit IA0061891 (effective), which expires in September 2031, with 33 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Walcott City Of STP (south).

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 33

Effluent violations: 15

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

Key contacts

1 verified contact for Walcott City Of STP (south), with validated emails and direct phone numbers.

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

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Nearby wastewater treatment plants in Iowa

Stockton City Of STP

Stockton · 4 mi away

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Blue Grass City Of STP

Blue Grass · 6 mi away

0.32 MGD

Davenport, City Of-West Locust Lagoon

Davenport · 6 mi away

—

Durant City Of STP

Durant · 7 mi away

0.14 MGD

Donahue City Of STP

Donahue · 9 mi away

—

Montpelier Sanitary District, Village Of

Montpelier · 9 mi away

0.02 MGD

New Liberty, City Of-STP

New Liberty · 10 mi away

—

Buffalo City Of STP

Buffalo · 10 mi away

0.27 MGD

Walcott City Of STP (south): 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 · Ozonation · Activated sludge · all terms

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