Festus-Crystal City WWTP
Crystal City, MO · Jefferson County · Publicly Owned Treatment Works
- Average flow
- 1.81 MGD
- Design flow
- —
- NPDES permit
- MO0080632
- Administratively continued
- Permit expires
- September 2021
- Population served
- 7,500
- CWNS 2022
Festus-Crystal City WWTP is a publicly owned wastewater treatment works in Crystal City, Jefferson County, Missouri treating an average of 1.81 million gallons per day, serving about 7,500 residents. Treatment on site includes biological treatment, other, biosolids aerobic digestion, disinfection, uv, screening. It discharges under NPDES permit MO0080632 (administratively continued), which expires in September 2021, with 14 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Biological Treatment, Other
unit processBiosolids Aerobic Digestion
unit processDisinfection, UV
unit processScreening
unit processUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 14
- Effluent violations
- 14
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Festus-Crystal City WWTP.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in Missouri
Pevely · 5 mi away
0.7 MGD
Pevely · 5 mi away
0.004 MGD
Hillsboro · 6 mi away
0.003 MGD
Crystal City · 6 mi away
0.1 MGD
Desoto · 6 mi away
0.03 MGD
Barnhart · 7 mi away
0.05 MGD
Barnhart · 9 mi away
0.48 MGD
De Soto · 9 mi away
0.44 MGD
Festus-Crystal City 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 24, 2025.