Clean Water Act discharge permit · NPDES MIS510504
SUNDOG MARINA-HARRISON TWP, Harrison Township, MI: NPDES MIS510504 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
SUNDOG MARINA-HARRISON TWP, held by River Port Village, dba Sundog Marina, holds NPDES permit MIS510504, which discharges to Clinton River. 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 (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for SUNDOG MARINA-HARRISON TWP: its NPDES ID, its permit type and status, its dates, its address in Harrison Township, Michigan, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MIS510504.
Identity
| Facility as filed | SUNDOG MARINA-HARRISON TWP |
|---|---|
| Permittee as filed | River Port Village, dba Sundog Marina |
| NPDES ID | MIS510504 |
| 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 | Harrison Township, MI 48045 |
| Receiving water | Clinton River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Cranberry Marsh Drain-Clinton River (HUC 040900030402) |
| SIC | 4493 – Marinas |
| Other EPA IDs (FRS) | RCRA handler MI0000042044 |
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
- 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 MIS510504.
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 MIS510504.
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, MIS510504.
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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 MIS510504 there.
Nearby on the register
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- Every permit record in Harrison Township, A to Z
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- Every permit record in Michigan, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.