Clean Water Act discharge permit · NPDES MDR002553
NORTHROP GRUMMAN SYSTEMS CORP. BWI, Linthicum, MD: NPDES MDR002553 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
NORTHROP GRUMMAN SYSTEMS CORP. BWI, held by NORTHROP GRUMMAN SYSTEMS CORP., holds NPDES permit MDR002553, which discharges to Patapsco Lower North Branch. EPA’s file records it issued January 30, 2024 and expiring January 31, 2028. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for NORTHROP GRUMMAN SYSTEMS CORP. BWI: its NPDES ID, its permit type and status, its dates, its address in Linthicum, Maryland, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MDR002553.
Identity
| Facility as filed | NORTHROP GRUMMAN SYSTEMS CORP. BWI |
|---|---|
| Permittee as filed | NORTHROP GRUMMAN SYSTEMS CORP. |
| NPDES ID | MDR002553 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | January 30, 2024 |
| Expiration date | January 31, 2028 |
| Issuing agency | MARYLAND DEPARTMENT OF THE ENVIRONMEN |
| Address | Linthicum, MD 21090 |
| Receiving water | PATAPSCO LOWER NORTH BRANCH |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Deep Run-Patapsco River (HUC 020600031102) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES MDR002553.
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 MDR002553.
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, MDR002553.
Start the watch
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- One watershed — $2,990/year
- One state — $4,990/year
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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 MDR002553 there.
Nearby on the register
- Discharge permits in Linthicum
- Every permit record in Linthicum, A to Z
- Discharge permits in Maryland
- Every permit record in Maryland, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.