How much wastewater does Northwood City Of STP treat?

Northwood City Of STP is permitted for a design flow of 1.49 MGD. Its average daily flow is not available in the current EPA data.

What is the NPDES permit for Northwood City Of STP?

The facility discharges under NPDES permit IA0032395, currently effective, expiring September 2029.

Is Northwood City Of STP in compliance?

Discharge monitoring reports show 1 violation at Northwood City Of STP in the last three years. The full history is available in Klarifi.

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

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

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Northwood City Of STP

Q: What treatment technology does Northwood City Of STP use?

Klarifi has identified uncovered lagoons, biogas balloons, disinfection, uv, suspended growth, aerobic at the Northwood facility.

Northwood, IA · Worth County · Publicly Owned Treatment Works

Average flow: —

Design flow: 1.49 MGD

NPDES permit: IA0032395; Effective

Permit expires: September 2029

Population served: 2,072; CWNS 2022

Northwood City Of STP is a publicly owned wastewater treatment works in Northwood, Worth County, Iowa, serving about 2,072 residents. Treatment on site includes uncovered lagoons, biogas balloons, disinfection, uv, suspended growth, aerobic. It discharges under NPDES permit IA0032395 (effective), which expires in September 2029, with 1 recorded violation in the last three years.

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

Uncovered lagoons

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Biogas balloons

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Disinfection, UV

unit process

Suspended Growth, Aerobic

unit process

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Compliance snapshot (last 3 years)

Total violations: 1

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

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Northwood 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 September 11, 2026; facility record last updated February 3, 2025.

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