Hilliard WWTF
Hilliard, FL · Nassau County · Publicly Owned Treatment Works
- Average flow
- 0.32 MGD
- Design flow
- 0.48 MGD
- NPDES permit
- 3604252632
- Effective
- Permit expires
- February 2030
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
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Primary Clarification or Sedimentation
unit processBiosolids Mechanical Dewatering
unit processScreening
unit processDisinfection, chlorine/ chloramine
unit processBiosolids Aerobic Digestion
unit processUnlock exact unit counts →
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
2 verified contacts for Hilliard WWTF, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Hilliard WWTF — plus full compliance history and discharge data.
Try Klarifi freeNearby wastewater treatment plants in Florida
Callahan · 10 mi away
0.15 MGD
Yulee · 22 mi away
2.21 MGD
Jacksonville · 28 mi away
0.19 MGD
Jacksonville · 29 mi away
23.11 MGD
Macclenny · 32 mi away
0.72 MGD
Jacksonville · 34 mi away
12.19 MGD
Middleburg · 41 mi away
1.58 MGD
Middleburg · 42 mi away
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Data sourced from public EPA / NPDES records and Klarifi analysis. Last updated November 2025.