Jcpsd Mirasol WWTP
Eureka, MO · Saint Louis County · Publicly Owned Treatment Works
- Average flow
- 0.13 MGD
- Design flow
- —
- NPDES permit
- MO0134147
- Effective
- Permit expires
- August 2028
- Population served
- 1,500
- CWNS 2022
Jcpsd Mirasol WWTP is a publicly owned wastewater treatment works in Eureka, Saint Louis County, Missouri treating an average of 0.13 million gallons per day, serving about 1,500 residents. Treatment on site includes biological treatment, other, biosolids aerobic digestion, disinfection, uv. It discharges under NPDES permit MO0134147 (effective), which expires in August 2028, with 22 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 processUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 22
- Effluent violations
- 6
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Jcpsd Mirasol WWTP.
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Nearby wastewater treatment plants in Missouri
Eureka · 2 mi away
1.13 MGD
High Ridge · 4 mi away
0.0036 MGD
High Ridge · 4 mi away
0.02 MGD
House Springs · 4 mi away
0.17 MGD
House Springs · 5 mi away
0.04 MGD
House Springs · 5 mi away
0.0002 MGD
House Springs · 5 mi away
0.03 MGD
House Springs · 5 mi away
0.07 MGD
Jcpsd Mirasol 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 September 3, 2024.