Clean Water Act discharge permit · NPDES MIG490275
SUPERIOR SAND & GRAVEL INC, Hancock, MI: NPDES MIG490275 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
SUPERIOR SAND & GRAVEL INC, held by Superior Sand & Gravel Incorporated, holds NPDES permit MIG490275, which discharges to Portage Lake Ship Canal. EPA’s file records it issued July 30, 2015 and expiring April 1, 2020. 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 | SUPERIOR SAND & GRAVEL INC |
|---|---|
| Permittee as filed | Superior Sand & Gravel Incorporated |
| NPDES ID | MIG490275 |
| 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 | July 30, 2015 |
| Expiration date | April 1, 2020 |
| Issuing agency | State |
| Address | Hancock, MI 49930 |
| Receiving water | Portage Lake Ship Canal |
| Receiving water impaired | 303(D) Listed |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 5Pollutants on file
- 5Under a numeric limit
- 5With a violation of any kind
- 1With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 4 | 330 | 3 | July 31, 2019 | 123% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 164 | 0 | ||
| pH | 2 | 162 | 0 | ||
| Outfall observation,visual, y/n response | 1 | 81 | 0 | ||
| Solids, total dissolved | 1 | 20 | 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
- 22Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 21, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| August 21, 2019 | Reporting Violations - Late Submittal of DMRs | ST6 |
| October 21, 2018 | Reporting Violations - Late Submittal of DMRs | ST6 |
| September 21, 2018 | Reporting Violations - Late Submittal of DMRs | ST6 |
| August 21, 2018 | Reporting Violations - Late Submittal of DMRs | ST6 |
| July 21, 2018 | Reporting Violations - Late Submittal of DMRs | ST6 |
| June 21, 2018 | Reporting Violations - Late Submittal of DMRs | ST6 |
| May 21, 2018 | Reporting Violations - Late Submittal of DMRs | ST6 |
| April 21, 2018 | Reporting Violations - Late Submittal of DMRs | ST6 |
| March 21, 2018 | Reporting Violations - Late Submittal of DMRs | ST6 |
| January 21, 2018 | Reporting Violations - Late Submittal of DMRs | ST6 |
| November 21, 2017 | Reporting Violations - Late Submittal of DMRs | ST6 |
| October 21, 2017 | Reporting Violations - Late Submittal of DMRs | ST6 |
| September 21, 2017 | Reporting Violations - Late Submittal of DMRs | ST6 |
| August 21, 2017 | Reporting Violations - Late Submittal of DMRs | ST6 |
| July 21, 2017 | Reporting Violations - Late Submittal of DMRs | ST6 |
| June 21, 2017 | Reporting Violations - Late Submittal of DMRs | ST6 |
| May 21, 2017 | Reporting Violations - Late Submittal of DMRs | ST6 |
| April 21, 2017 | Reporting Violations - Late Submittal of DMRs | ST6 |
| March 21, 2017 | Reporting Violations - Late Submittal of DMRs | ST6 |
| February 21, 2017 | Reporting Violations - Late Submittal of DMRs | ST6 |
| January 21, 2017 | Reporting Violations - Late Submittal of DMRs | 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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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 MIG490275 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.