How much wastewater does Ionia WWTP treat?

Ionia WWTP treats an average of 1.51 MGD.

What treatment technology does Ionia WWTP use?

Klarifi has identified clarifiers, biogas silos, biogas balloons at the Ionia facility.

What is the NPDES permit for Ionia WWTP?

The facility discharges under NPDES permit MI0021041, currently administratively continued, expiring October 2025.

Is Ionia WWTP in compliance?

Discharge monitoring reports show 20 violations at Ionia WWTP in the last three years, 2 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, Michigan. Klarifi lists 5 verified decision-maker contacts for this facility, available with a free trial.

Try for free Log in

Ionia WWTP

Ionia, MI · Ionia County · Publicly Owned Treatment Works

Average flow: 1.51 MGD

Design flow: —

NPDES permit: MI0021041; Administratively continued

Permit expires: October 2025

Population served: 17,316; CWNS 2022

Ionia WWTP is a publicly owned wastewater treatment works in Ionia, Ionia County, Michigan treating an average of 1.51 million gallons per day, serving about 17,316 residents. Treatment on site includes clarifiers, biogas silos, biogas balloons. It discharges under NPDES permit MI0021041 (administratively continued), which expires in October 2025, with 20 recorded violations in the last three years.

Treatment technology

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

Clarifiers

Unlock

Biogas silos

Unlock

Biogas balloons

Unlock

Unlock exact unit counts →

Compliance snapshot (last 3 years)

Total violations: 20

Effluent violations: 2

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

Key contacts

5 verified contacts for Ionia WWTP, with validated emails and direct phone numbers.

Unlock 5 verified contacts (2 more than shown)

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

Try Klarifi free

Nearby wastewater treatment plants in Michigan

Muir Wwsl

Muir · 7 mi away

—

Saranac Wwsl

Saranac · 8 mi away

—

Orleans Twp Wwsl

Orleans · 9 mi away

—

Clarksville-Morrison Lake Wwsl

Saranac · 10 mi away

—

Belding WWTP

Belding · 11 mi away

—

Lakewood WW Auth WWTP

Lake Odessa · 13 mi away

0.46 MGD

Lowell WWTP

Lowell · 14 mi away

0.85 MGD

Greenville WWTP

Greenville · 16 mi away

1.48 MGD

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 September 11, 2026; facility record last updated March 6, 2025.

Try Klarifi for free

Create your own trial account and explore how Klarifi can help you.

Try for free