Hightstown Boro AWWTP
Hightstown, NJ · Mercer County · Publicly Owned Treatment Works
- Average flow
- 0.25 MGD
- Design flow
- —
- NPDES permit
- NJ0029475
- Effective
- Permit expires
- September 2027
- Population served
- 5,276
- CWNS 2022
Hightstown Boro AWWTP is a publicly owned wastewater treatment works in Hightstown, Mercer County, New Jersey treating an average of 0.25 million gallons per day, serving about 5,276 residents. Treatment on site includes clarifiers, biogas silos. It discharges under NPDES permit NJ0029475 (effective), which expires in September 2027, with 44 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 44
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Hightstown Boro AWWTP.
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Nearby wastewater treatment plants in New Jersey
East Windsor · 2 mi away
2.38 MGD
Millstone Township · 5 mi away
0.08 MGD
Allentown · 8 mi away
0.13 MGD
Manalapan · 10 mi away
5.83 MGD
Montgomery · 10 mi away
0.4 MGD
Lawrenceville · 10 mi away
5.5 MGD
Chesterfield · 11 mi away
0.6 MGD
Skillman · 12 mi away
0.13 MGD
Hightstown Boro AWWTP: 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 April 24, 2025.