Clean Water Act discharge permit · NPDES NJG156256
KLOCKNER & KLOCKNER PLUME, Rockaway Boro, NJ: NPDES NJG156256 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
KLOCKNER & KLOCKNER PLUME, held by NORTHROP GRUMMAN SPACE SYSTEMS, holds NPDES permit NJG156256. EPA’s file records it issued August 12, 2020 and expiring July 31, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | KLOCKNER & KLOCKNER PLUME |
|---|---|
| Permittee as filed | NORTHROP GRUMMAN SPACE SYSTEMS |
| NPDES ID | NJG156256 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 12, 2020 |
| Expiration date | July 31, 2025 |
| Address | Rockaway Boro, NJ 07866 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Beaver Brooker (HUC 020301030402) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 9With a violation of any kind
- 1With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 3 | 1 | December 31, 2025 | 22% over the limit |
| Zinc, total recoverable | 2 | 6 | 0 | ||
| pH | 2 | 4 | 0 | ||
| Solids, total suspended | 2 | 4 | 0 | ||
| Carbon, tot organic [TOC] | 2 | 4 | 0 | ||
| Chromium, total recoverable | 2 | 4 | 0 | ||
| Tetrachloroethylene | 2 | 4 | 0 | ||
| Trichloroethylene | 2 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 4 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES NJG156256.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, NJG156256.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID NJG156256 there.
Nearby on the register
- Discharge permits in Rockaway Boro
- Every permit record in Rockaway Boro, A to Z
- Discharge permits in New Jersey
- Every permit record in New Jersey, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.