St Johnsbury
St Johnsbury, VT · Caledonia County · Publicly Owned Treatment Works
- Average flow
- 0.95 MGD
- Design flow
- —
- NPDES permit
- 3601423421
- EXP
- Permit expires
- March 2023
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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Biogas silos
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Primary Clarification or Sedimentation
unit processAttached Growth, Aerobic
unit processSludge Blanket, Anaerobic
unit processBiosolids Anaerobic Digestion without Energy Recovery
unit processBiosolids Mechanical Dewatering
unit processScreening
unit processDechlorination
unit processDisinfection, chlorine/ chloramine
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Compliance snapshot (last 3 years)
- Total violations
- 18
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Contacts for St Johnsbury are available in the Klarifi platform.
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Names, validated emails and direct phone numbers for decision-makers at St Johnsbury — plus full compliance history and discharge data.
Try Klarifi freeData sourced from public EPA / NPDES records and Klarifi analysis. Last updated April 2025.