Clean Water Act discharge permit · NPDES MAPIU00HW
MASSACHUSETTS BAY TRANSPORTATION AUTHORITY (MBTA), Medford, MA: NPDES MAPIU00HW discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MASSACHUSETTS BAY TRANSPORTATION AUTHORITY (MBTA), held by MBTA Wellington Carhouse, holds NPDES permit MAPIU00HW. EPA’s file records it issued June 17, 2024 and expiring June 15, 2026. 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 MASSACHUSETTS BAY TRANSPORTATION AUTHORITY (MBTA): its NPDES ID, its permit type and status, its dates, its address in Medford, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAPIU00HW.
Identity
| Facility as filed | MASSACHUSETTS BAY TRANSPORTATION AUTHORITY (MBTA) |
|---|---|
| Permittee as filed | MBTA Wellington Carhouse |
| NPDES ID | MAPIU00HW |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual industrial user permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 17, 2024 |
| Expiration date | June 15, 2026 |
| Issuing agency | Mwra Deer Island Treatment Plant |
| Address | Medford, MA 02155 |
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 MAPIU00HW.
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 MAPIU00HW.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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, MAPIU00HW.
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 MAPIU00HW there.
Nearby on the register
- Discharge permits in Medford
- Every permit record in Medford, A to Z
- Discharge permits in Massachusetts
- Every permit record in Massachusetts, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.