How much wastewater does Calumet City Of STP treat?

Calumet City Of STP is permitted for a design flow of 0.04 MGD. Its average daily flow is not available in the current EPA data.

What treatment technology does Calumet City Of STP use?

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

What is the NPDES permit for Calumet City Of STP?

The facility discharges under NPDES permit IA0062049, currently administratively continued, expiring September 2016.

Is Calumet City Of STP in compliance?

Discharge monitoring reports show no violations at Calumet City Of STP in the last three years.

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

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

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Calumet City Of STP

Calumet, IA 51009 · O Brien County · Publicly Owned Treatment Works

Average flow: —

Design flow: 0.04 MGD

NPDES permit: IA0062049; Administratively continued

Permit expires: September 2016

Population served: 146; CWNS 2022

Calumet City Of STP is a publicly owned wastewater treatment works in Calumet, O Brien County, Iowa, serving about 146 residents. It discharges under NPDES permit IA0062049 (administratively continued), which expires in September 2016, with 0 recorded violations in the last three years.

Treatment technology

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

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 0

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 Calumet 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 Calumet City Of STP, plus the full compliance history and discharge data.

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Calumet 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 · Anaerobic digester · Lift station · all terms

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