Clean Water Act discharge permit · NPDES MIG250189
GREAT LAKES CASTINGS, Ludington, MI: NPDES MIG250189 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 4Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
GREAT LAKES CASTINGS, held by Great Lakes Castings LLC, holds NPDES permit MIG250189, which discharges to Lincoln River. EPA’s file records it issued July 11, 2019 and expiring April 1, 2023. 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 | GREAT LAKES CASTINGS |
|---|---|
| Permittee as filed | Great Lakes Castings LLC |
| NPDES ID | MIG250189 |
| 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 | July 11, 2019 |
| Expiration date | April 1, 2023 |
| Issuing agency | State |
| Address | Ludington, MI 49431 |
| Receiving water | Lincoln River |
| Subwatershed | Lincoln Lake-Lincoln River (HUC 040601010203) |
| NAICS | 331511 – Iron Foundries |
| SIC | 3321 – Gray And Ductile Iron Foundries |
| Other EPA IDs (FRS) | RCRA handler MID006016935; ICIS-AIR source MI00000000000A3934 |
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
- 5Pollutants on file
- 4Under a numeric limit
- 4With a violation of any kind
- 0With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 4 | 36 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 17 | 0 | ||
| Outfall observation,visual, y/n response | 2 | 16 | 0 | ||
| Chlorine, total residual | 0 | 1 | 0 | ||
| pH | 4 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MIG250189.
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
- 9Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 21, 2024 | Reporting Violations - Late Submittal of DMRs | ST6 |
| November 21, 2023 | Reporting Violations - Late Submittal of DMRs | ST6 |
| May 21, 2023 | Reporting Violations - Late Submittal of DMRs | ST6 |
| August 21, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| June 1, 2022 | Effluent Violations - Numeric effluent violation | ST6 |
| December 21, 2019 | Reporting Violations - Late Submittal of DMRs | ST6 |
| November 21, 2019 | Reporting Violations - Late Submittal of DMRs | ST6 |
| October 21, 2019 | Reporting Violations - Late Submittal of DMRs | ST6 |
| September 21, 2019 | Reporting Violations - Late Submittal of DMRs | 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, MIG250189.
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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 MIG250189 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.