What is the address of Manistique WWTP?

The address on the plant’s EPA facility record is 321 Traders Point Dr, Manistique, MI 49854, in Schoolcraft County. Its coordinates are 45.9509, -86.2511. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Manistique WWTP treat?

Manistique WWTP treats an average of 1.24 MGD.

What treatment technology does Manistique WWTP use?

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

What is the NPDES permit for Manistique WWTP?

The facility discharges under NPDES permit MI0023515, currently administratively continued, expiring October 2025.

Is Manistique WWTP in compliance?

Discharge monitoring reports show 25 violations at Manistique WWTP in the last three years, 25 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Manistique WWTP and how do I contact them?

Manistique WWTP is a publicly owned treatment works in Manistique, Michigan. Klarifi lists 4 verified decision-maker contacts for this facility, available with a free trial.

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Manistique WWTP

321 Traders Point Dr, Manistique, MI 49854 · Schoolcraft County · Publicly Owned Treatment Works

Average flow: 1.24 MGD

Design flow: —

NPDES permit: MI0023515; Administratively continued

Permit expires: October 2025

Population served: 3,603; CWNS 2022

Manistique WWTP is a publicly owned wastewater treatment works in Manistique, Schoolcraft County, Michigan treating an average of 1.24 million gallons per day, serving about 3,603 residents. It discharges under NPDES permit MI0023515 (administratively continued), which expires in October 2025, with 25 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Manistique WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 25

Effluent violations: 25

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

Key contacts

4 verified contacts for Manistique WWTP, with validated emails and direct phone numbers.

Unlock 4 verified contacts (1 more than shown)

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

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—

Powers Wwsl

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Manistique 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 February 27, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms

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