Ki Sawyer WWTP-Marquette Co
Gwinn, MI · Marquette County · Publicly Owned Treatment Works
- Average flow
- 0.17 MGD
- Design flow
- —
- NPDES permit
- MI0021423
- Effective
- Permit expires
- October 2030
- Population served
- —
- CWNS 2022
Ki Sawyer WWTP-Marquette Co is a publicly owned wastewater treatment works in Gwinn, Marquette County, Michigan treating an average of 0.17 million gallons per day. Treatment on site includes uncovered lagoons, biogas balloons. It discharges under NPDES permit MI0021423 (effective), which expires in October 2030, with 6 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 6
- Effluent violations
- 5
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Ki Sawyer WWTP-Marquette Co, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Ki Sawyer WWTP-Marquette Co, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Michigan
Gwinn · 5 mi away
—
Marquette · 13 mi away
2.62 MGD
Palmer · 13 mi away
0.03 MGD
Ishpeming · 18 mi away
1.09 MGD
Rock · 27 mi away
—
Munising · 35 mi away
0.45 MGD
Channing · 36 mi away
—
Gladstone · 38 mi away
0.38 MGD
Ki Sawyer WWTP-Marquette Co: 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 July 11, 2026.