Cass City WWTP
Cass City, MI · Tuscola County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
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- NPDES permit
- MI0022594
- Effective
- Permit expires
- October 2027
- Population served
- 2,694
- CWNS 2022
Cass City WWTP is a publicly owned wastewater treatment works in Cass City, Tuscola County, Michigan, serving about 2,694 residents. Treatment on site includes clarifiers, uncovered lagoons. It discharges under NPDES permit MI0022594 (effective), which expires in October 2027, with 3 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
- 3
- Effluent violations
- 3
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Cass City WWTP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Cass City WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Michigan
Elmwood · 6 mi away
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Owendale · 12 mi away
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Caro · 13 mi away
0.26 MGD
Snover · 13 mi away
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Unionville · 15 mi away
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Sebewaing · 16 mi away
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Elkton · 17 mi away
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Bad Axe · 18 mi away
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Cass City 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 May 19, 2025.