MSD Coldwater WWTP
Florissant, MO · St Louis County · Publicly Owned Treatment Works
- Average flow
- 23.08 MGD
- Design flow
- 40 MGD
- NPDES permit
- 3601308450
- Effective
- Permit expires
- December 2022
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Biogas silos
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Dechlorination
unit processBiosolids Thickening
unit processPrimary Clarification or Sedimentation
unit processDisinfection, chlorine/ chloramine
unit processScreening
unit processBiological Treatment, Other
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Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for MSD Coldwater WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at MSD Coldwater WWTP — plus full compliance history and discharge data.
Try Klarifi freeData sourced from public EPA / NPDES records and Klarifi analysis. Last updated May 2025.