Clean Water Act discharge permit · NPDES MIS510396
MASS TRANS AUTHORITY-FLINT, Flint, MI: NPDES MIS510396 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MASS TRANS AUTHORITY-FLINT, held by Mass Transportation Authority, holds NPDES permit MIS510396, which discharges to Gilkey Creek. EPA’s file records it issued May 19, 2020 and expiring April 1, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | MASS TRANS AUTHORITY-FLINT |
|---|---|
| Permittee as filed | Mass Transportation Authority |
| NPDES ID | MIS510396 |
| 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 | May 19, 2020 |
| Expiration date | April 1, 2025 |
| Issuing agency | State |
| Address | Flint, MI 48503 |
| Receiving water | Gilkey Creek |
| Subwatershed | Gilkey Creek-Flint River (HUC 040802040410) |
| SIC | 4111 – Local And Suburban Transit |
| Other EPA IDs (FRS) | RCRA handler MID985614015 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
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 MIS510396.
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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| April 11, 2025 | Failure to develop, maintain, or get approval of an adequate SWPPP (industrial stormwater) | ST6 |
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, MIS510396.
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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 MIS510396 there.
Nearby on the register
- Discharge permits in Flint
- Every permit record in Flint, A to Z
- Discharge permits in Michigan
- Every permit record in Michigan, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.