St. Paul WWTP
108 Webster St, St Paul, IN 47272 · Decatur County · Publicly Owned Treatment Works
- Average flow
- 0.12 MGD
- Design flow
- 0.15 MGD
- NPDES permit
- IN0020842
- Effective
- Permit expires
- October 2030
- Population served
- 960
- CWNS 2022
St. Paul WWTP is a publicly owned wastewater treatment works in St Paul, Decatur County, Indiana treating an average of 0.12 million gallons per day against a permitted design capacity of 0.15 MGD, serving about 960 residents. It discharges under NPDES permit IN0020842 (effective), which expires in October 2030, with 41 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at St. Paul WWTP.
Available with a free Klarifi account
See the full treatment train at St. Paul WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 41
- Effluent violations
- 28
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for St. Paul WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at St. Paul WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Indiana
Waldron · 4 mi away
0.11 MGD
Milroy · 9 mi away
0.2 MGD
Hartsville · 11 mi away
0.03 MGD
Homer · 11 mi away
0.07 MGD
Shelbyville · 12 mi away
6.11 MGD
Rushville · 16 mi away
1.76 MGD
Greensburg · 17 mi away
0.06 MGD
Morristown · 18 mi away
0.44 MGD
St. Paul 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 6, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms