Cadillac WWTP
1121 Plett Rd, Cadillac, MI 49601 · Wexford County · Publicly Owned Treatment Works
- Average flow
- 1.99 MGD
- Design flow
- —
- NPDES permit
- MI0020257
- Effective
- Permit expires
- October 2027
- Population served
- 11,932
- CWNS 2022
Cadillac WWTP is a publicly owned wastewater treatment works in Cadillac, Wexford County, Michigan treating an average of 1.99 million gallons per day, serving about 11,932 residents. It discharges under NPDES permit MI0020257 (effective), which expires in October 2027, with 20 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Cadillac WWTP.
Available with a free Klarifi account
See the full treatment train at Cadillac WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 20
- Effluent violations
- 14
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Cadillac
Cadillac's capital improvement plan lists 81 water, sewer and wastewater line items worth $16M starting 2025–2030. The largest budgeted items are shown here.
All water and sewer capital projects in Cadillac →
| Project | Budget | Years |
|---|---|---|
| WWTP Headworks Project | $3,500,000 | 2027–2027 |
| Sewer Lining | $1,300,000 | 2025–2030 |
| Gas Storage and Energy Production | $600,000 | 2030–2030 |
| Gas Storage and Energy Production | $600,000 | 2025–2025 |
| Sewer Combo Unit | $550,000 | 2029–2029 |
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
14 verified contacts for Cadillac WWTP, with validated emails and direct phone numbers.
Unlock 14 verified contacts (11 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Cadillac WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Michigan
Marion · 18 mi away
—
Reed City · 28 mi away
0.51 MGD
Houghton Lake · 30 mi away
1.71 MGD
Traverse City · 36 mi away
4.58 MGD
Prudenville · 36 mi away
1.05 MGD
Barryton · 38 mi away
0.87 MGD
Roscommon · 44 mi away
0.08 MGD
Clare · 45 mi away
0.55 MGD
Cadillac 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 March 6, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms