Marquette WWTP
1930 US 41 South, Marquette, MI 49855 · Marquette County · Publicly Owned Treatment Works
- Average flow
- 2.86 MGD
- Design flow
- —
- NPDES permit
- MI0023531
- Effective
- Permit expires
- October 2027
- Population served
- 24,562
- CWNS 2022
Marquette WWTP is a publicly owned wastewater treatment works in Marquette, Marquette County, Michigan treating an average of 2.86 million gallons per day, serving about 24,562 residents. It discharges under NPDES permit MI0023531 (effective), which expires in October 2027, with 25 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Marquette WWTP.
Available with a free Klarifi account
See the full treatment train at Marquette WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 25
- Effluent violations
- 16
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Marquette
Marquette's capital improvement plan lists 7 water, sewer and wastewater line items worth $902K starting 2025–2025. The largest budgeted items are shown here.
All water and sewer capital projects in Marquette →
| Project | Budget | Years |
|---|---|---|
| Aeration Building Repairs | $606,000 | 2025–2025 |
| Effluent Pump controls | $90,000 | 2025–2026 |
| Sewer Line Replacement | $85,000 | 2025–2025 |
| Lift Station Repair and Rebuild | $45,000 | 2025–2026 |
| Unforseen Expenses | $35,000 | 2025–2026 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
15 verified contacts for Marquette WWTP, with validated emails and direct phone numbers.
Unlock 15 verified contacts (12 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Marquette WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Michigan
Palmer · 11 mi away
0.03 MGD
Gwinn · 13 mi away
0.18 MGD
Ishpeming · 15 mi away
1.48 MGD
Gwinn · 17 mi away
—
Republic · 30 mi away
—
Munising · 36 mi away
0.48 MGD
Rock · 39 mi away
0.43 MGD
Channing · 42 mi away
0.9 MGD
Marquette 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 August 7, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms