Clean Water Act discharge permit · NPDES MIG670360
ENERGY TRANSFER-OWOSSO TERMINAL, Owosso, MI: NPDES MIG670360 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 16Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
ENERGY TRANSFER-OWOSSO TERMINAL, held by Sunoco Partners Marketing and Terminals LP, holds NPDES permit MIG670360, which discharges to Maple River. EPA’s file records it issued September 25, 2018 and expiring April 1, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | ENERGY TRANSFER-OWOSSO TERMINAL |
|---|---|
| Permittee as filed | Sunoco Partners Marketing and Terminals LP |
| NPDES ID | MIG670360 |
| 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 | September 25, 2018 |
| Expiration date | April 1, 2023 |
| Issuing agency | State |
| Address | Owosso, MI 48867 |
| Receiving water | Maple River |
| Subwatershed | Town of Ovid-Maple River (HUC 040500050105) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 16Pollutants on file
- 16Under a numeric limit
- 3With 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 |
|---|---|---|---|---|---|
| Ethylbenzene | 3 | 112 | 0 | ||
| Volume, total | 1 | 57 | 0 | ||
| Solids, total suspended | 3 | 9 | 0 | ||
| Benzene, ethylbenzene, toluene, xylene combination | 3 | 0 | 0 | ||
| Toluene | 3 | 0 | 0 | ||
| Benzene | 3 | 0 | 0 | ||
| Ethylbenzene | 3 | 0 | 0 | ||
| Chlorine, total residual | 3 | 0 | 0 | ||
| Xylenes [total], dry weight | 3 | 0 | 0 | ||
| Flow rate | 2 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Oil & Grease | 1 | 0 | 0 | ||
| Equipment inspection - visual | 1 | 0 | 0 | ||
| Chlorination duration | 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 MIG670360.
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 MIG670360.
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
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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 MIG670360 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.