St. Joe - Spencerville WWTP
6313 Sr 1, St. Joe, IN 46785 · De Kalb County · Publicly Owned Treatment Works
- Average flow
- 0.05 MGD
- Design flow
- 0.17 MGD
- NPDES permit
- IN0058441
- Effective
- Permit expires
- May 2027
- Population served
- 1,030
- CWNS 2022
St. Joe - Spencerville WWTP is a publicly owned wastewater treatment works in St. Joe, De Kalb County, Indiana treating an average of 0.05 million gallons per day against a permitted design capacity of 0.17 MGD, serving about 1,030 residents. It discharges under NPDES permit IN0058441 (effective), which expires in May 2027, with 87 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at St. Joe - Spencerville WWTP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 87
- Effluent violations
- 86
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for St. Joe - Spencerville WWTP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at St. Joe - Spencerville WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Indiana
Butler · 9 mi away
2.12 MGD
Garrett · 12 mi away
0.75 MGD
Woodburn · 12 mi away
0.25 MGD
Hamilton · 16 mi away
0.16 MGD
Corunna · 16 mi away
—
Laotto · 16 mi away
0.14 MGD
Avilla · 17 mi away
0.3 MGD
Ashley · 18 mi away
0.16 MGD
St. Joe - Spencerville 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 November 27, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms