What is the address of Stephenson WWTP?

The address on the plant’s EPA facility record is S 502 Section St, Stephenson, MI 49887, in Menominee County. Its coordinates are 45.4131, -87.6137. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Stephenson WWTP treat?

Stephenson WWTP treats an average of 0.15 MGD.

What treatment technology does Stephenson WWTP use?

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

What is the NPDES permit for Stephenson WWTP?

The facility discharges under NPDES permit MIG570221, currently administratively continued, expiring April 2025.

Is Stephenson WWTP in compliance?

Discharge monitoring reports show 8 violations at Stephenson WWTP in the last three years, 8 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Stephenson WWTP and how do I contact them?

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

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Stephenson WWTP

S 502 Section St, Stephenson, MI 49887 · Menominee County · Publicly Owned Treatment Works

Average flow: 0.15 MGD

Design flow: —

NPDES permit: MIG570221; Administratively continued

Permit expires: April 2025

Population served: 892; CWNS 2022

Stephenson WWTP is a publicly owned wastewater treatment works in Stephenson, Menominee County, Michigan treating an average of 0.15 million gallons per day, serving about 892 residents. It discharges under NPDES permit MIG570221 (administratively continued), which expires in April 2025, with 8 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Stephenson WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 8

Effluent violations: 8

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

Key contacts

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

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

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Stephenson 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 September 11, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms

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