Clean Water Act discharge permit · NPDES MI0001686
DTE-ST CLAIR PLANT, East China,, MI: NPDES MI0001686 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 12Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
DTE-ST CLAIR PLANT, held by DTE Energy Electric Company, holds NPDES permit MI0001686, which discharges to St Clair River. EPA’s file records it issued August 27, 2015 and expiring October 1, 2018. 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 | DTE-ST CLAIR PLANT |
|---|---|
| Permittee as filed | DTE Energy Electric Company |
| NPDES ID | MI0001686 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 27, 2015 |
| Expiration date | October 1, 2018 |
| Issuing agency | State |
| Address | East China,, MI 48054 |
| Receiving water | St Clair River |
| Subwatershed | Bunce Creek-Frontal Saint Clair River (HUC 040900010307) |
| Other EPA IDs (FRS) | RCRA handler MID000721548 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 13Pollutants on file
- 12Under a numeric limit
- 13With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Mercury, total [as Hg] | 6 | 563 | 4 | January 31, 2026 | 231% over the limit |
| Solids, total suspended | 16 | 278 | 2 | March 31, 2016 | 7% over the limit |
| Chlorine, total residual | 1 | 34 | 2 | July 31, 2010 | 55% over the limit |
| Oil & Grease | 16 | 233 | 1 | August 31, 2019 | 36% over the limit |
| Flow, in conduit or thru treatment plant | 18 | 372 | 0 | ||
| Chlorination duration | 1 | 31 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 29 | 0 | ||
| pH | 2 | 28 | 0 | ||
| Copper, total [as Cu] | 2 | 19 | 0 | ||
| Iron, total [as Fe] | 2 | 16 | 0 | ||
| Thermal Discharge | 1 | 16 | 0 | ||
| Outfall observation,visual, y/n response | 1 | 14 | 0 | ||
| Cyanide [A] | 0 | 1 | 0 |
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 |
|---|---|---|
| March 15, 2019 | Effluent Violations - Narrative Effluent Violation | ST6 |
| January 28, 2019 | Effluent Violations - Narrative Effluent Violation | ST6 |
| May 6, 2018 | Effluent Violations - Narrative Effluent Violation | 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, MI0001686.
Start the watch
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- 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 MI0001686 there.
Nearby on the register
- Discharge permits in East China,
- Every permit record in East China,, 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.