Clean Water Act discharge permit · NPDES MI0059522
SOUTH LYON PS MS4-OAKLAND, South Lyon, MI: NPDES MI0059522 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
SOUTH LYON PS MS4-OAKLAND, held by South Lyon Community Schools, holds NPDES permit MI0059522. EPA’s file records it issued October 27, 2016 and expiring October 1, 2021. 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 | SOUTH LYON PS MS4-OAKLAND |
|---|---|
| Permittee as filed | South Lyon Community Schools |
| NPDES ID | MI0059522 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 27, 2016 |
| Expiration date | October 1, 2021 |
| Issuing agency | State |
| Address | South Lyon, MI 48178 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Inchwagh Lake (HUC 040900050109) |
| NAICS | 611110 – Elementary and Secondary Schools |
| SIC | 8211 – Elementary And Secondary Schools |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
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 MI0059522.
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
- 7Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 7, 2026 | Failure to comply with a requirement regarding Public Participation / Involvement | ST6 |
| May 7, 2026 | Failure to comply with a requirement regarding Pollution Prevention / Good Housekeeping | ST6 |
| May 7, 2026 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| May 7, 2026 | Failure to comply with a requirement regarding Illicit Discharge Detection and Elimination | ST6 |
| April 19, 2022 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| April 19, 2022 | Failure to comply with a requirement regarding Pollution Prevention / Good Housekeeping | ST6 |
| April 19, 2022 | Failure to comply with a requirement regarding Post-Construction Runoff Control | 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.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.