What is the address of Henderson City Of STP?

The address on the plant’s EPA facility record is 1/4 Mile West Of Myrtle Street And West Street, Henderson, IA 51541, in Mills County. Its coordinates are 41.1398, -95.4387. For some plants the record holds the utility’s mailing address rather than the plant gate.

What treatment technology does Henderson City Of STP use?

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

What is the NPDES permit for Henderson City Of STP?

The facility discharges under NPDES permit IA0061590, currently effective, expiring May 2029.

Is Henderson City Of STP in compliance?

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

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

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

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Henderson City Of STP

1/4 Mile West Of Myrtle Street And West Street, Henderson, IA 51541 · Mills County · Publicly Owned Treatment Works

Average flow: —

Design flow: —

NPDES permit: IA0061590; Effective

Permit expires: May 2029

Population served: 144; CWNS 2022

Henderson City Of STP is a publicly owned wastewater treatment works in Henderson, Mills County, Iowa, serving about 144 residents. It discharges under NPDES permit IA0061590 (effective), which expires in May 2029, with 0 recorded violations in the last three years.

Treatment technology

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

Available with a free Klarifi account

See the full treatment train at Henderson 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 Henderson 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 Henderson City Of STP, plus the full compliance history and discharge data.

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Nearby wastewater treatment plants in Iowa

Macedonia City Of STP

Macedonia · 3 mi away

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Carson City Of STP

Carson · 6 mi away

0.07 MGD

Emerson City Of STP

Emerson · 9 mi away

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Silver City, City Of STP

Silver City · 10 mi away

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Oakland City Of STP

Oakland · 11 mi away

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Treynor City Of STP Northwest

Treynor · 12 mi away

0.07 MGD

Mineola City Of STP

Mineola · 13 mi away

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Red Oak City Of STP

Red Oak · 14 mi away

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Henderson 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 28, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms

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