Three Rivers WWTP
Three Rivers, MI · St. Joseph County · Publicly Owned Treatment Works
- Average flow
- 0.88 MGD
- Design flow
- —
- NPDES permit
- MI0020991
- Effective
- Permit expires
- October 2026
- Population served
- 8,731
- CWNS 2022
Three Rivers WWTP is a publicly owned wastewater treatment works in Three Rivers, St. Joseph County, Michigan treating an average of 0.88 million gallons per day, serving about 8,731 residents. Treatment on site includes clarifiers, biogas silos. It discharges under NPDES permit MI0020991 (effective), which expires in October 2026, with 46 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
- 46
- Effluent violations
- 42
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Three Rivers
Three Rivers's capital improvement plan lists 51 water, sewer and wastewater line items worth $22M starting 2025–2031. The largest budgeted items are shown here.
All water and sewer capital projects in Three Rivers →
| Project | Budget | Years |
|---|---|---|
| MDOT Roadways Watermain Replacements | $5,980,000 | 2029–2029 |
| Sewers Under MDOT Roads | $2,494,063 | 2029–2029 |
| Well 5, 6, 7 Generator Replacement | $1,296,000 | 2025–2025 |
| S HOOKER (W MICHIGAN TO BROADWAY) - DWSRF | $862,000 | 2031–2031 |
| Various Sewer Relining Projects | $805,000 | 2025–2025 |
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
17 verified contacts for Three Rivers WWTP, with validated emails and direct phone numbers.
Unlock 17 verified contacts (14 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Three Rivers WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Michigan
Centreville · 6 mi away
—
White Pigeon · 10 mi away
0.16 MGD
Mendon · 12 mi away
—
Sturgis · 15 mi away
1.13 MGD
Lawton · 19 mi away
0.08 MGD
Decatur · 21 mi away
—
Bronson · 23 mi away
0.17 MGD
Paw Paw · 24 mi away
0.12 MGD
Three Rivers 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 April 4, 2025.