Williston City Of
Williston, ND · Williams County · Publicly Owned Treatment Works
- Average flow
- 3.16 MGD
- Design flow
- 6 MGD
- NPDES permit
- 3603557683
- Effective
- Permit expires
- March 2028
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Uncovered lagoons
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Biological P removal
unit processBiological N removal
unit processBiosolids Mechanical Dewatering
unit processDisinfection, UV
unit processBiosolids Aerobic Digestion
unit processScreening
unit processPrimary Clarification or Sedimentation
unit processSuspended Growth, Aerobic
unit processUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 4
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
16 verified contacts for Williston City Of, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Williston City Of — plus full compliance history and discharge data.
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Data sourced from public EPA / NPDES records and Klarifi analysis. Last updated April 2025.