Clean Water Act discharge permit · NPDES MI0020044
MUNISING WWTP, Munising, MI: NPDES MI0020044 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 25Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
MUNISING WWTP, held by City of Munising, holds NPDES permit MI0020044, which discharges to Anna River. EPA’s file records it issued June 28, 2019 and expiring October 1, 2023. 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 | MUNISING WWTP |
|---|---|
| Permittee as filed | City of Munising |
| NPDES ID | MI0020044 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | June 28, 2019 |
| Expiration date | October 1, 2023 |
| Issuing agency | State |
| Address | Munising, MI 49862 |
| Receiving water | Anna River |
| Subwatershed | Anna River (HUC 040202010202) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 27Pollutants on file
- 25Under a numeric limit
- 27With a violation of any kind
- 7With 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, suspended percent removal | 2 | 33 | 10 | April 30, 2017 | 73% over the limit |
| pH | 2 | 59 | 9 | March 31, 2026 | |
| Solids, total suspended | 4 | 107 | 8 | April 30, 2013 | 403% over the limit |
| Oxygen, dissolved [DO] | 2 | 65 | 4 | July 31, 2015 | 19% over the limit |
| Chlorine, total residual | 0 | 26 | 4 | September 30, 2008 | 5,453% over the limit |
| Coliform, fecal general | 2 | 51 | 1 | September 30, 2019 | 4% over the limit |
| Phosphorus, total [as P] | 4 | 48 | 1 | July 31, 2023 | 10% over the limit |
| Nitrogen, ammonia total [as N] | 16 | 121 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 100 | 0 | ||
| Mercury, total [as Hg] | 6 | 77 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 50 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 2 | 25 | 0 | ||
| Beryllium, total [as Be] | 0 | 24 | 0 | ||
| Solids, total | 3 | 3 | 0 | ||
| Arsenic, dry weight | 3 | 3 | 0 | ||
| Selenium, dry weight | 3 | 3 | 0 | ||
| Copper, dry weight | 3 | 3 | 0 | ||
| Cadmium, dry weight | 3 | 3 | 0 | ||
| Nitrogen, total Kjeldahl | 3 | 3 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 3 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 3 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 3 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 3 | 0 | ||
| Nitrogen, sludge, total, dry weight [as N] | 3 | 3 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 3 | 0 | ||
| Potassium, sludge, total, dry weight [as K] | 3 | 3 | 0 | ||
| Phosphorus, sludge, total, dry weight [as P] | 3 | 3 | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 21, 2025 | Reporting Violations - Late Submittal of DMRs | ST6 |
| October 31, 2020 | Reporting Violations - Late Submittal of DMRs | ST6 |
| April 19, 2017 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| April 1, 2017 | Monitoring Violations - Improper Analysis or Lab Error | 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
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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 MI0020044 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.