Clean Water Act discharge permit · NPDES MIG081312
FORMER DPI - ALPENA, Alpena, MI: NPDES MIG081312 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
FORMER DPI - ALPENA, held by Thunder Bay Development, LLC, holds NPDES permit MIG081312, which discharges to Lake Huron. EPA’s file records it issued July 20, 2026 and expiring April 1, 2030. 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.
What the register holds for FORMER DPI - ALPENA: its NPDES ID, its permit type and status, its dates, its address in Alpena, Michigan, its receiving water, and 11 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MIG081312.
Identity
| Facility as filed | FORMER DPI - ALPENA |
|---|---|
| Permittee as filed | Thunder Bay Development, LLC |
| NPDES ID | MIG081312 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | July 20, 2026 |
| Expiration date | April 1, 2030 |
| Issuing agency | State |
| Address | Alpena, MI 49707 |
| Receiving water | Lake Huron |
| Subwatershed | Grass Creek-Frontal Lake Huron (HUC 040700030309) |
| Other EPA IDs (FRS) | RCRA handler MID005338157 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 11Pollutants on file
- 11Under a numeric limit
- 0With 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 |
|---|---|---|---|---|---|
| Phosphorus, total [as P] | 4 | 0 | 0 | ||
| Perfluorooctanesulfonate | 4 | 0 | 0 | ||
| Perfluorononanoic acid (PFNA) | 4 | 0 | 0 | ||
| Perfluorohexane Sulfonate | 4 | 0 | 0 | ||
| Perfluorooctanoic acid (PFOA) | 3 | 0 | 0 | ||
| Perfluorobutanesulfonic acid (PFBS) | 3 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Equipment inspection - visual | 1 | 0 | 0 | ||
| Outfall observation,visual, y/n response | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MIG081312.
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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MIG081312.
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, MIG081312.
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- One state — $4,990/year
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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 MIG081312 there.
Nearby on the register
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- Every permit record in Alpena, A to Z
- Discharge permits in Michigan
- Every permit record in Michigan, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.