Clean Water Act discharge permit · NPDES MIS510404
GRAND TRUNK WRR-FLINT, Flint, MI: NPDES MIS510404 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
GRAND TRUNK WRR-FLINT, held by Grand Trunk WRR, holds NPDES permit MIS510404, which discharges to Call Drain. 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 (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | GRAND TRUNK WRR-FLINT |
|---|---|
| Permittee as filed | Grand Trunk WRR |
| NPDES ID | MIS510404 |
| 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 48507 |
| Receiving water | Call Drain |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Carman Creek-Swartz Creek (HUC 040802040307) |
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 MIS510404.
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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 22, 2021 | Management Practice Violations - Best Management Practice Deficiencies | ST6 |
| July 22, 2021 | Failure to eliminate or relocate industrial stormwater outfalls from identified sensitive areas | ST6 |
| July 22, 2021 | Other noncompliance related to industrial stormwater discharges | 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
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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 MIS510404 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.