How much wastewater does Malcom City Of STP treat?

Malcom City Of STP is permitted for a design flow of 0.16 MGD. Its average daily flow is not available in the current EPA data.

What treatment technology does Malcom City Of STP use?

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

What is the NPDES permit for Malcom City Of STP?

The facility discharges under NPDES permit IA0048011, currently effective, expiring October 2030.

Is Malcom City Of STP in compliance?

Discharge monitoring reports show 6 violations at Malcom City Of STP in the last three years. The full history is available in Klarifi.

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

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

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Malcom City Of STP

Malcom, IA 50157 · Poweshiek County · Publicly Owned Treatment Works

Average flow: —

Design flow: 0.16 MGD

NPDES permit: IA0048011; Effective

Permit expires: October 2030

Population served: 270; CWNS 2022

Malcom City Of STP is a publicly owned wastewater treatment works in Malcom, Poweshiek County, Iowa, serving about 270 residents. It discharges under NPDES permit IA0048011 (effective), which expires in October 2030, with 6 recorded violations in the last three years.

Treatment technology

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

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 6

Effluent violations: 0

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

Key contacts

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

Unlock 1 verified contact

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

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Nearby wastewater treatment plants in Iowa

Brooklyn City Of STP

Brooklyn · 6 mi away

0.2 MGD

Poweshiek Water Association

Brooklyn · 6 mi away

—

Grinnell, City Of STP

Grinnell · 11 mi away

1.35 MGD

Searsboro City Of STP

Searsboro · 12 mi away

—

Deep River, City Of STP

Deep River · 13 mi away

—

Victor City Of STP

Victor · 13 mi away

0.15 MGD

Barnes City, City Of STP

Barnes City · 14 mi away

—

Lynnville City Of STP

Lynnville · 15 mi away

—

Malcom 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 February 10, 2025.

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

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