What is the address of North English City Of STP?

The address on the plant’s EPA facility record is 2234 335th St, North English, IA 52316, in Iowa County. Its coordinates are 41.5146, -92.0508. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does North English City Of STP treat?

North English City Of STP treats an average of 0.1 MGD and is permitted for a design flow of 0.95 MGD.

What is the NPDES permit for North English City Of STP?

The facility discharges under NPDES permit IA0034282, currently effective, expiring May 2029.

Is North English City Of STP in compliance?

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

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

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

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North English City Of STP

2234 335th St, North English, IA 52316 · Iowa County · Publicly Owned Treatment Works

Average flow: 0.1 MGD

Design flow: 0.95 MGD

NPDES permit: IA0034282; Effective

Permit expires: May 2029

Population served: 1,065; CWNS 2022

North English City Of STP is a publicly owned wastewater treatment works in North English, Iowa County, Iowa treating an average of 0.1 million gallons per day against a permitted design capacity of 0.95 MGD, serving about 1,065 residents. It discharges under NPDES permit IA0034282 (effective), which expires in May 2029, with 0 recorded violations in the last three years.

Treatment technology

Treatment structures and unit processes at North English City Of STP.

Treatment structure data not yet analyzed for this facility.

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

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North English 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 28, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms

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