Velarion Records
The Pay Desk is the free weekly executive pay briefing — one company at a time, every number traceable to a public filing.
You’ll confirm on The Pay Desk’s sign-up page.

Clean Water Act discharge permit · NPDES MANOEJ04P

MBTA MATTAPAN CARHOUSE, Boston, MA: NPDES MANOEJ04P discharge permit, effluent exceedances, inspections, penalties

MBTA MATTAPAN CARHOUSE, held by MASSACHUSETTS BAY TRANSPORTATION AUTHORITY (MBTA), holds NPDES permit MANOEJ04P. EPA’s file records it issued June 15, 2020 and expiring June 15, 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.

What the register holds for MBTA MATTAPAN CARHOUSE: its NPDES ID, its permit type and status, its dates, its address in Boston, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MANOEJ04P.

Identity

Facility as filedMBTA MATTAPAN CARHOUSE
Permittee as filedMASSACHUSETTS BAY TRANSPORTATION AUTHORITY (MBTA)
NPDES IDMANOEJ04P
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedJune 15, 2020
Expiration dateJune 15, 2025
Issuing agencyU.S. EPA
AddressBoston, MA 02126
Receiving water impaired303(D) Listed
SubwatershedOutlet Neponset River-Frontal Boston Harbor (HUC 010900010803)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MANOEJ04P.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MANOEJ04P.

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, MANOEJ04P.

Start the watch

How often?
  • 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 MANOEJ04P there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.