Npsd Interim Saline Creek Regional WWTP
Fenton, MO · Jefferson County · Publicly Owned Treatment Works
- Average flow
- 1.71 MGD
- Design flow
- —
- NPDES permit
- MO0128490
- Effective
- Permit expires
- June 2023
- Population served
- 888
- CWNS 2022
Npsd Interim Saline Creek Regional WWTP is a publicly owned wastewater treatment works in Fenton, Jefferson County, Missouri treating an average of 1.71 million gallons per day, serving about 888 residents. Treatment on site includes clarifiers, uncovered lagoons, carrousels / oxidation ditches, biological treatment, other, biosolids aerobic digestion and other unit processes. It discharges under NPDES permit MO0128490 (effective), which expires in June 2023, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Uncovered lagoons
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Carrousels / oxidation ditches
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Biological Treatment, Other
unit processBiosolids Aerobic Digestion
unit processBiosolids Thickening
unit processDisinfection, UV
unit processScreening
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Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Npsd Interim Saline Creek Regional WWTP.
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Nearby wastewater treatment plants in Missouri
Fenton · 2 mi away
0.0018 MGD
Fenton · 2 mi away
3.6 MGD
Valley Park · 5 mi away
10.4 MGD
High Ridge · 6 mi away
0.02 MGD
House Springs · 6 mi away
0.07 MGD
High Ridge · 6 mi away
0.0036 MGD
House Springs · 7 mi away
0.0002 MGD
House Springs · 7 mi away
0.04 MGD
Npsd Interim Saline Creek Regional 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 May 20, 2025.