Klarifi Logo
Try for freeLog in
Klarifi Logo

Hightstown Boro AWWTP

167 Oak Lane, Hightstown, NJ 08520 · Mercer County · Publicly Owned Treatment Works

Average flow
0.28 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 0.28 million gallons per day, serving about 5,276 residents. It discharges under NPDES permit NJ0029475 (effective), which expires in September 2027, with 39 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in June 2023.

Treatment technology

2 treatment structures and unit processes identified at Hightstown Boro AWWTP.

Available with a free Klarifi account

See the full treatment train at Hightstown Boro AWWTP: structures, unit processes and planned upgrades, with exact unit counts.

Create a free account

Compliance snapshot (last 3 years)

Total violations
39
Effluent violations
3

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

EPA enforcement history

Federal civil enforcement cases, compliance inspections and informal actions recorded for Hightstown Boro AWWTP in EPA's ICIS system.

Formal actions
2
1 since FY2020
Penalties assessed
$1,000
all cases
Compliance actions
$5,000
required by EPA orders
EPA inspections
0
none on record

Latest case · Jun 2023

Borough of Hightstown

Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $5,000

EPA's description of the case:

“This Order has been developed to enforce NJPDES permit requirements regarding proper O&M of the sanitary sewer collection system.”

Source: EPA ECHO, civil enforcement case 02-2023-3003.

Full case history with a free Klarifi account

Every action against Hightstown Boro AWWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.

Create a free account

Key contacts

Decision-makers at Hightstown Boro AWWTP.

No verified contacts on file yet

Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.

Try Klarifi free

Nearby wastewater treatment plants in New Jersey

East Windsor Water Pollution Control Plant

East Windsor · 2 mi away

2.53 MGD

Roosevelt Boro MUA WWTP

Millstone Township · 5 mi away

0.11 MGD

Allentown STP

Allentown · 8 mi away

0.14 MGD

Pine Brook STP

Manalapan · 10 mi away

5.82 MGD

Stage Ii Treatment Plant

Montgomery · 10 mi away

0.43 MGD

Ewing Lawrence Sewer Auth

Lawrenceville · 10 mi away

7.31 MGD

Ac Wagner Youth Corr Fac

Chesterfield · 11 mi away

0.65 MGD

0.16 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 October 26, 2026; facility record last updated April 24, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms


Try Klarifi for free

Create your own trial account and explore how Klarifi can help you.

Try for free