Hillsborough WWTP Town Of
Hillsborough, NC · Orange County · Publicly Owned Treatment Works
- Average flow
- 0.89 MGD
- Design flow
- 3 MGD
- NPDES permit
- NC0026433
- Effective
- Permit expires
- January 2030
- Population served
- 7,294
- CWNS 2022
Hillsborough WWTP Town Of is a publicly owned wastewater treatment works in Hillsborough, Orange County, North Carolina treating an average of 0.89 million gallons per day against a permitted design capacity of 3 MGD, serving about 7,294 residents. Treatment on site includes clarifiers. It discharges under NPDES permit NC0026433 (effective), which expires in January 2030, with 1 recorded violation 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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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.
Capital improvement projects in Hillsborough
Hillsborough's capital improvement plan lists 18 water, sewer and wastewater line items worth $52M starting 2024–2029. The largest budgeted items are shown here.
All water and sewer capital projects in Hillsborough →
| Project | Budget | Years |
|---|---|---|
| Cates Creek Outfall Upgrade (expenses) | $11,020,000 | 2025–2031 |
| Adron F. Thompson Facility Renovation & Expansion (expenses) | $7,310,600 | 2024–2025 |
| Eno River Interceptor Upgrade - East (expenses) | $5,950,000 | 2024–2029 |
| Hasell Water Tank Replacement (expenses) | $5,845,000 | 2024–2029 |
| Elizabeth Brady Pump Station and Force Main Upgrade (expenses) | $5,300,000 | 2024–2029 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
Decision-makers at Hillsborough WWTP Town Of.
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Nearby wastewater treatment plants in North Carolina
Chapel Hill · 13 mi away
4.48 MGD
Graham · 16 mi away
1.9 MGD
Butner · 17 mi away
1.36 MGD
Durham · 17 mi away
4.35 MGD
Cary · 24 mi away
5.91 MGD
Pittsboro · 25 mi away
0.06 MGD
Apex · 29 mi away
—
Siler City · 30 mi away
2.1 MGD
Hillsborough WWTP Town Of: 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 March 20, 2025.