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Clean Water Act discharge permit · NPDES MIS111694

GRAND TRUNK WRR-PONTIAC LOCO, Pontiac, MI: NPDES MIS111694 discharge permit, effluent exceedances, inspections, penalties

GRAND TRUNK WRR-PONTIAC LOCO, held by Grand Trunk Western Railroad, holds NPDES permit MIS111694, which discharges to Pontiac Creek. EPA’s file records it issued January 13, 2021 and expiring March 31, 2026.

GRAND TRUNK WRR-PONTIAC LOCO, Pontiac, Michigan: Coverage under a general permit MIS111694, held by Grand Trunk Western Railroad; Effective; issued January 13, 2021, term to March 31, 2026, by State; discharges to Pontiac Creek.

Other permits held by Grand Trunk Western Railroad

GRAND TRUNK WRR-PONTIAC LOCO among its neighbors

EPA’s permit file holds 39 discharge permits in the Pontiac Creek-Clinton River subwatershed (HUC 040900030108), MIS111694 among them. Its county holds 124, 6 of them major permits; MIS111694 is a minor permit.

Other permits in the Pontiac Creek-Clinton River subwatershed (HUC 040900030108)

What the register holds for GRAND TRUNK WRR-PONTIAC LOCO: its NPDES ID, its permit type and status, its dates, its address in Pontiac, Michigan, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MIS111694.

Identity

Facility as filedGRAND TRUNK WRR-PONTIAC LOCO
Permittee as filedGrand Trunk Western Railroad
NPDES IDMIS111694
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJanuary 13, 2021
Expiration dateMarch 31, 2026
Issuing agencyState
AddressPontiac, MI 48340
Receiving waterPontiac Creek
Receiving water impaired303(D) Listed
SubwatershedPontiac Creek-Clinton River (HUC 040900030108)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MIS111694.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES MIS111694.

Inspections

EPA’s inspection file holds no inspection for NPDES MIS111694.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MIS111694.

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, MIS111694.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

The GRAND TRUNK WRR-PONTIAC LOCO permit, filed by Grand Trunk Western Railroad in Pontiac, is one of 71 general permit coverages in Oakland County and one of 39 NPDES permits in the Pontiac Creek-Clinton River subwatershed. It has no pollutants under a numeric limit and no pollutants with an effluent exceedance, and 31.0% of the county's 71 general permit coverages have a violation on file.