Dcsd, Treatment Plant 4
Wentzville, MO · St. Charles County · Publicly Owned Treatment Works
- Average flow
- 0.49 MGD
- Design flow
- —
- NPDES permit
- 3604448423
- Effective
- Permit expires
- June 2030
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Wentzville
| Project | Budget | Years |
|---|---|---|
| Waterline Extensions and Replacement | $13,450,000 | 2025–2028 |
| Deep Aquifer Water Well and Storage | $12,000,000 | 2025–2026 |
| New Water Storage Tank with Water Main Improvements | $9,000,000 | 2025–2026 |
| 2-MG GM Ground Storage Tank Coating Interior and Booster Pump Rebuild | $3,400,000 | 2025–2026 |
| Bypass Trunk Relief | $2,300,000 | 2025–2026 |
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
Contacts for Dcsd, Treatment Plant 4 are available in the Klarifi platform.
Unlock contacts for this facility
Names, validated emails and direct phone numbers for decision-makers at Dcsd, Treatment Plant 4 — plus full compliance history and discharge data.
Try Klarifi freeData sourced from public EPA / NPDES records and Klarifi analysis. Last updated July 2025.