Clean Water Act discharge permit · NPDES MI0060257
MWC LLC, St. John, MI: NPDES MI0060257 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 16Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
MWC LLC, held by MWC, LLC, holds NPDES permit MI0060257, which discharges to St. Johns Big Ditch Drain. EPA’s file records it issued August 29, 2019 and expiring October 1, 2023.
MWC LLC, St. John, Michigan: Individual permit MI0060257, held by MWC, LLC; Administratively continued (past its expiration date and still in force until reissued); issued August 29, 2019, term to October 1, 2023, by State; discharges to St. Johns Big Ditch Drain; Cheese Manufacturing.
- Sulfate, total [as SO4]: 4 limits, 66 violations of any kind, 0 effluent exceedances.
- Solids, total dissolved: 4 limits, 63 violations of any kind, 0 effluent exceedances.
- Chloride [as Cl]: 4 limits, 59 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 4 limits, 53 violations of any kind, 0 effluent exceedances.
- Nitrogen, ammonia total [as N]: 16 limits, 50 violations of any kind, 0 effluent exceedances.
- BOD, carbonaceous [5 day, 20 C]: 16 limits, 50 violations of any kind, 0 effluent exceedances.
- Toxicity, choice of species: 2 limits, 35 violations of any kind, 0 effluent exceedances.
- Static 48 Hr Chronic Pimphales Promelas: 2 limits, 32 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 2 limits, 30 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 4 limits, 29 violations of any kind, 0 effluent exceedances.
- Toxicity [acute], Ceriodaphnia dubia: 1 limit, 16 violations of any kind, 0 effluent exceedances.
- TU Static 24 Hr Acute Pimephales promelas: 1 limit, 16 violations of any kind, 0 effluent exceedances.
- pH: 2 limits, 9 violations of any kind, 0 effluent exceedances.
- Outfall observation,visual, y/n response: 1 limit, 8 violations of any kind, 0 effluent exceedances.
- Oxygen, dissolved [DO]: 1 limit, 4 violations of any kind, 0 effluent exceedances.
- Chlorine, total residual: 1 limit, 3 violations of any kind, 0 effluent exceedances.
- April 23, 2026: Notice of Violation (State).
- March 6, 2026: Evaluation (S).
- June 21, 2025: Reporting Violations - Late Submittal of DMRs (ST6).
- April 16, 2024: Permit Violations - Discharge Without a Valid Permit (ST6).
- August 11, 2023: Permit Violations - Discharge Without a Valid Permit (ST6).
- July 6, 2023: Permit Violations - Discharge Without a Valid Permit (ST6).
- July 5, 2023: Permit Violations - Discharge Without a Valid Permit (ST6).
- May 31, 2023: Permit Violations - Discharge Without a Valid Permit (ST6).
- September 9, 2022: Permit Violations - Discharge Without a Valid Permit (ST6).
- September 8, 2022: Permit Violations - Discharge Without a Valid Permit (ST6).
- July 21, 2022: Reporting Violations - Late Submittal of DMRs (ST6).
- May 13, 2022: Permit Violations - Discharge Without a Valid Permit (ST6).
- April 21, 2022: Reporting Violations - Late Submittal of DMRs (ST6).
- March 21, 2022: Reporting Violations - Late Submittal of DMRs (ST6).
- June 21, 2021: Reporting Violations - Late Submittal of DMRs (ST6).
- April 8, 2021: Permit Violations - Discharge Without a Valid Permit (ST6).
- February 25, 2021: Permit Violations - Discharge Without a Valid Permit (ST6).
- December 25, 2020: Permit Violations - Discharge Without a Valid Permit (ST6).
- November 21, 2019: Reporting Violations - Late Submittal of DMRs (ST6).
- October 21, 2019: Reporting Violations - Late Submittal of DMRs (ST6).
MWC LLC among its neighbors
EPA’s permit file holds 6 discharge permits in the Doty Brook-Hayworth Creek subwatershed (HUC 040500050502), MI0060257 among them.
Other permits in the Doty Brook-Hayworth Creek subwatershed (HUC 040500050502)
- CLINTON CDC MS4-CLINTON, Saint Johns: MI0060105, minor permit, permit term to October 1, 2024
- CLINTON CDC-NUISANCE PLANT, Clinton County: MIG031042, minor permit, permit term to February 1, 2022
- MWC (MICHIGAN), LLC, Saint Johns: MIS410829, minor permit, discharging to St. Johns Big Ditch Drain, permit term to April 1, 2024
- ST JOHNS WWTP, St Johns: MI0026468, major permit, discharging to St. Johns Big Ditch Drain, permit term to October 1, 2018
- WORTHINGTON AG PARTS-ST JOHNS, St. Johns: MIS420077, minor permit, discharging to Doty Brook, permit term to April 1, 2029
Identity
| Facility as filed | MWC LLC |
|---|---|
| Permittee as filed | MWC, LLC |
| NPDES ID | MI0060257 |
| 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 | August 29, 2019 |
| Expiration date | October 1, 2023 |
| Issuing agency | State |
| Address | St. John, MI 48879 |
| Receiving water | St. Johns Big Ditch Drain |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Doty Brook-Hayworth Creek (HUC 040500050502) |
| NAICS | 311513 – Cheese Manufacturing |
| SIC | 2022 – Cheese, Natural And Processed |
Effluent limits and exceedances
- 16Pollutants on file
- 16Under a numeric limit
- 16With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| Sulfate, total [as SO4] | 4 | 66 | 0 | ||
| Solids, total dissolved | 4 | 63 | 0 | ||
| Chloride [as Cl] | 4 | 59 | 0 | ||
| Phosphorus, total [as P] | 4 | 53 | 0 | ||
| Nitrogen, ammonia total [as N] | 16 | 50 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 16 | 50 | 0 | ||
| Toxicity, choice of species | 2 | 35 | 0 | ||
| Static 48 Hr Chronic Pimphales Promelas | 2 | 32 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 30 | 0 | ||
| Solids, total suspended | 4 | 29 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 16 | 0 | ||
| TU Static 24 Hr Acute Pimephales promelas | 1 | 16 | 0 | ||
| pH | 2 | 9 | 0 | ||
| Outfall observation,visual, y/n response | 1 | 8 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 4 | 0 | ||
| Chlorine, total residual | 1 | 3 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MI0060257.
Inspections, violations and enforcement
- 18Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 21, 2025 | Reporting Violations - Late Submittal of DMRs | ST6 |
| April 16, 2024 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| August 11, 2023 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| July 6, 2023 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| July 5, 2023 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| May 31, 2023 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| September 9, 2022 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| September 8, 2022 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| July 21, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| May 13, 2022 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| April 21, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| March 21, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| June 21, 2021 | Reporting Violations - Late Submittal of DMRs | ST6 |
| April 8, 2021 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| February 25, 2021 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| December 25, 2020 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| November 21, 2019 | Reporting Violations - Late Submittal of DMRs | ST6 |
| October 21, 2019 | Reporting Violations - Late Submittal of DMRs | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| March 6, 2026 | Evaluation | S |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| April 23, 2026 | Notice of Violation | State |
Watch this permit
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.