Clean Water Act discharge permit · NPDES MI0023540
MARSHALL WWTP, Marshall, MI: NPDES MI0023540 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 33Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
MARSHALL WWTP, held by City of Marshall, holds NPDES permit MI0023540, which discharges to Kalamazoo River. EPA’s file records it issued June 29, 2021 and expiring October 1, 2025. 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 | MARSHALL WWTP |
|---|---|
| Permittee as filed | City of Marshall |
| NPDES ID | MI0023540 |
| 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 | June 29, 2021 |
| Expiration date | October 1, 2025 |
| Issuing agency | State |
| Address | Marshall, MI 49068 |
| Receiving water | Kalamazoo River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Buckhorn Lake-Kalamazoo River (HUC 040500030407) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 33Pollutants on file
- 33Under a numeric limit
- 14With a violation of any kind
- 5With 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 | 19 | 8 | July 31, 2022 | 133% over the limit |
| Solids, total suspended | 4 | 51 | 3 | May 31, 2022 | 68% over the limit |
| Coliform, fecal general | 2 | 24 | 2 | April 30, 2019 | 338% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 8 | 49 | 1 | March 31, 2006 | 12% over the limit |
| Chlorine, total residual | 1 | 12 | 1 | June 30, 2015 | 68% over the limit |
| Nitrogen, ammonia total [as N] | 12 | 26 | 0 | ||
| Phosphorus, total [as P] | 4 | 25 | 0 | ||
| pH | 2 | 22 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 22 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 10 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 2 | 5 | 0 | ||
| Mercury, total [as Hg] | 4 | 4 | 0 | ||
| Chloride [as Cl] | 2 | 2 | 0 | ||
| Sulfate, total [as SO4] | 2 | 2 | 0 | ||
| Selenium, total [as Se] | 4 | 0 | 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 | ||
| Toxicity, choice of species | 2 | 0 | 0 | ||
| Static 48 Hr Chronic Pimphales Promelas | 2 | 0 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 0 | 0 | ||
| TU Static 24 Hr Acute Pimephales promelas | 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
- 6Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 14, 2022 | Reporting Violations - Failure to Notify | ST6 |
| September 20, 2021 | Management Practice Violations - No Licensed/Certified Operator | ST6 |
| October 31, 2020 | Reporting Violations - Late Submittal of DMRs | ST6 |
| October 15, 2019 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| October 15, 2019 | Reporting Violations - Failure to Notify | ST6 |
| May 6, 2017 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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 September 15, 2026.