Clean Water Act discharge permit · NPDES MI0028401
MONROE METRO WWTP, Monroe, MI: NPDES MI0028401 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 27Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
MONROE METRO WWTP, held by City of Monroe, holds NPDES permit MI0028401. EPA’s file records it issued July 27, 2018 and expiring October 1, 2019. 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 | MONROE METRO WWTP |
|---|---|
| Permittee as filed | City of Monroe |
| NPDES ID | MI0028401 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | July 27, 2018 |
| Expiration date | October 1, 2019 |
| Issuing agency | State |
| Address | Monroe, MI 48161 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Plum Creek (HUC 041000010201) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 27Pollutants on file
- 27Under a numeric limit
- 12With a violation of any kind
- 8With 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 | 8 | 108 | 8 | October 31, 2021 | 567% over the limit |
| Coliform, fecal general | 2 | 50 | 5 | February 28, 2022 | 623% over the limit |
| pH | 2 | 37 | 5 | March 31, 2009 | |
| Solids, suspended percent removal | 4 | 25 | 5 | February 28, 2009 | 83% over the limit |
| Chlorine, total residual | 1 | 17 | 5 | December 31, 2021 | 1,032% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 8 | 98 | 2 | January 31, 2002 | 80% over the limit |
| BOD, carb-5 day, 20 deg C, percent removal | 4 | 21 | 2 | January 31, 2007 | 79% over the limit |
| Oxygen, dissolved [DO] | 1 | 17 | 1 | August 31, 2003 | 100% over the limit |
| Phosphorus, total [as P] | 8 | 164 | 0 | ||
| Flow, in conduit or thru treatment plant | 8 | 112 | 0 | ||
| Nitrogen, ammonia total [as N] | 20 | 92 | 0 | ||
| Mercury, total [as Hg] | 4 | 11 | 0 | ||
| Solids, total | 3 | 0 | 0 | ||
| Arsenic, dry weight | 3 | 0 | 0 | ||
| Selenium, dry weight | 3 | 0 | 0 | ||
| Copper, dry weight | 3 | 0 | 0 | ||
| Cadmium, dry weight | 3 | 0 | 0 | ||
| Nitrogen, total Kjeldahl | 3 | 0 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 0 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 0 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 0 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 0 | 0 | ||
| Nitrogen, sludge, total, dry weight [as N] | 3 | 0 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 0 | 0 | ||
| Potassium, sludge, total, dry weight [as K] | 3 | 0 | 0 | ||
| Phosphorus, sludge, total, dry weight [as P] | 3 | 0 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 0 | 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 |
|---|---|---|
| August 9, 2024 | Failure to enforce standards, local limits, and reporting requirements (>15% SNC SIU) (Level II) | ST6 |
| October 21, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| September 8, 2022 | Pretreatment - Failure to Develop/Enforce Standards | ST6 |
| September 8, 2022 | Failure to enforce standards, local limits, and reporting requirements (>15% SNC SIU) (Level II) | 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 MI0028401 there.
Nearby on the register
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- Every permit record in Michigan, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.