What is the address of Ionia WWTP?

The address on the plant’s EPA facility record is E Main St & East St, Ionia, IA 50645, in Chickasaw County. Its coordinates are 42.9795, -85.0751. For some plants the record holds the utility’s mailing address rather than the plant gate.

What treatment technology does Ionia WWTP use?

Klarifi has identified 2 treatment structures and unit processes at the Ionia facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Ionia WWTP?

The facility discharges under NPDES permit IA0058777, currently effective, expiring February 2031.

Is Ionia WWTP in compliance?

Discharge monitoring reports show 10 violations at Ionia WWTP in the last three years, 4 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Ionia WWTP and how do I contact them?

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

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Ionia WWTP

E Main St & East St, Ionia, IA 50645 · Chickasaw County · Publicly Owned Treatment Works

Average flow: —

Design flow: —

NPDES permit: IA0058777; Effective

Permit expires: February 2031

Population served: 340; CWNS 2022

Ionia WWTP is a publicly owned wastewater treatment works in Ionia, Chickasaw County, Iowa, serving about 340 residents. It discharges under NPDES permit IA0058777 (effective), which expires in February 2031, with 10 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Ionia WWTP.

Available with a free Klarifi account

See the full treatment train at Ionia WWTP: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 10

Effluent violations: 4

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

Key contacts

1 verified contact for Ionia WWTP, with validated emails and direct phone numbers.

Unlock 1 verified contact

Names, validated emails and direct phone numbers for decision-makers at Ionia WWTP, plus the full compliance history and discharge data.

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Ionia WWTP: 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 January 31, 2025.

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

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