What is the address of Essex City Of STP?

The address on the plant’s EPA facility record is 1480 Airport Rd., Essex, IA 51638, in Page County. Its coordinates are 40.8319, -95.3225. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Essex City Of STP treat?

Essex City Of STP treats an average of 0.11 MGD and is permitted for a design flow of 1.35 MGD.

What treatment technology does Essex City Of STP use?

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

What is the NPDES permit for Essex City Of STP?

The facility discharges under NPDES permit IA0026603, currently effective, expiring September 2027.

Is Essex City Of STP in compliance?

Discharge monitoring reports show 45 violations at Essex City Of STP in the last three years, 41 of them effluent limit exceedances. The full history is available in Klarifi.

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

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

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Essex City Of STP

1480 Airport Rd., Essex, IA 51638 · Page County · Publicly Owned Treatment Works

Average flow: 0.11 MGD

Design flow: 1.35 MGD

NPDES permit: IA0026603; Effective

Permit expires: September 2027

Population served: 722; CWNS 2022

Essex City Of STP is a publicly owned wastewater treatment works in Essex, Page County, Iowa treating an average of 0.11 million gallons per day against a permitted design capacity of 1.35 MGD, serving about 722 residents. It discharges under NPDES permit IA0026603 (effective), which expires in September 2027, with 45 recorded violations in the last three years.

Treatment technology

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

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 45

Effluent violations: 41

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

Key contacts

1 verified contact for Essex 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 Essex City Of STP, plus the full compliance history and discharge data.

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Essex 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 · Anaerobic digester · Lift station · all terms

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