New Jersey wastewater permits expiring in 2028
10 NPDES permits · 19 MGD combined average flow
10 publicly owned wastewater treatment plants in New Jersey hold NPDES permits that expire during 2028, issued by New Jersey Department of Environmental Protection. The table lists each plant with its permit number, expiry month, average flow, treatment technology and three-year violation count, in order of expiry.
An NPDES permit runs for five years. To keep discharging, a plant must apply for renewal at least 180 days before the expiry date, and the renewed permit usually arrives with tighter effluent limits, new monitoring requirements or a compliance schedule. That is why the year a permit expires is the year a plant starts budgeting for upgrades: nutrient removal, disinfection, capacity or controls.
| Facility | City | Avg flow (MGD) | NPDES permit | Expires | Technology | Violations (3y) |
|---|---|---|---|---|---|---|
| Par Troy Hills Twp MUA WWTP @ Whippany River | Parsippany | 7.98 | NJG124753 | Jan 2028 | Clarifiers, Biogas silos | 88 |
| Berkeley Heights WPCF | Berkeley Heights | 1.15 | NJ0027961 | Mar 2028 | Clarifiers, Biogas silos | 133 |
| Milford Boro Sewer Auth | Milford | 0.18 | NJ0021890 | Mar 2028 | — | 0 |
| Frenchtown Wastewater Treatment Plant | Frenchtown | 0.08 | NJ0029831 | Mar 2028 | Clarifiers, Carrousels / oxidation ditches | 25 |
| North Bergen Twp MUA Woodcliff STP | North Bergen | 2.41 | NJ0029084 | Jun 2028 | Clarifiers, Biogas balloons | 17 |
| Beverly Sewerage Authority | Beverly | 0.44 | NJ0027481 | Jun 2028 | Clarifiers, Uncovered lagoons | 66 |
| Caldwell Boro MUA Caldwell WWTP | West Caldwell | 2.98 | NJ0020427 | Sep 2028 | Clarifiers, Carrousels / oxidation ditches, Biogas balloons | 68 |
| Delran Sewerage Authority | Delran | 1.87 | NJ0023507 | Sep 2028 | — | 37 |
| Logan Township MUA | Bridgeport | 1.46 | NJ0027545 | Sep 2028 | Clarifiers, Aerated lagoons, Uncovered lagoons | 2 |
| Riverton STP | Riverton | 0.12 | NJ0021610 | Dec 2028 | Aerated lagoons, Uncovered lagoons | 27 |
New Jersey permit renewals in 2028: 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.