Clean Water Act discharge permit · NPDES MI0021474
BOYNE CITY WWTP, Boyne City, MI: NPDES MI0021474 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 27Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
BOYNE CITY WWTP, held by City of Boyne City, holds NPDES permit MI0021474, which discharges to Lake Charlevoix. EPA’s file records it issued June 28, 2020 and expiring October 1, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | BOYNE CITY WWTP |
|---|---|
| Permittee as filed | City of Boyne City |
| NPDES ID | MI0021474 |
| 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, 2020 |
| Expiration date | October 1, 2024 |
| Issuing agency | State |
| Address | Boyne City, MI 49712 |
| Receiving water | Lake Charlevoix |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Boyne River (HUC 040601050205) |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 29Pollutants on file
- 27Under a numeric limit
- 29With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Phosphorus, total [as P] | 4 | 54 | 14 | January 31, 2026 | 156% over the limit |
| Coliform, fecal general | 4 | 96 | 10 | June 30, 2021 | 230% over the limit |
| TU Static 24 Hr Acute Pimephales promelas | 1 | 50 | 7 | January 31, 2026 | 148% over the limit |
| Solids, total suspended | 4 | 75 | 3 | June 30, 2022 | 380% over the limit |
| Toxicity [acute], Ceriodaphnia dubia | 1 | 45 | 2 | April 30, 2025 | 63% over the limit |
| pH | 2 | 38 | 2 | July 31, 2023 | |
| Mercury, total [as Hg] | 6 | 203 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 72 | 0 | ||
| TU Static 24 Hr Acute Daphnia magna | 1 | 58 | 0 | ||
| Cyanide [A] | 0 | 38 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 36 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 21 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 18 | 0 | ||
| Solids, total | 3 | 12 | 0 | ||
| Arsenic, dry weight | 3 | 12 | 0 | ||
| Selenium, dry weight | 3 | 12 | 0 | ||
| Copper, dry weight | 3 | 12 | 0 | ||
| Cadmium, dry weight | 3 | 12 | 0 | ||
| Nitrogen, total Kjeldahl | 3 | 12 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 12 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 12 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 12 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 12 | 0 | ||
| Nitrogen, sludge, total, dry weight [as N] | 3 | 12 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 12 | 0 | ||
| Potassium, sludge, total, dry weight [as K] | 3 | 12 | 0 | ||
| Phosphorus, sludge, total, dry weight [as P] | 3 | 12 | 0 | ||
| Toxic Units Static 24 Hr Acute Ceriodaphnia dubia | 1 | 2 | 0 | ||
| Copper, total [as Cu] | 0 | 2 | 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
- 14Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 18, 2025 | Monitoring Violations - Analysis not Conducted | ST6 |
| March 21, 2024 | Monitoring Violations - Analysis not Conducted | ST6 |
| February 10, 2023 | Failure to enforce standards, local limits, and reporting requirements (>15% SNC SIU) (Level II) | ST6 |
| February 10, 2023 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| September 21, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| August 21, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| July 21, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| July 1, 2022 | Management Practice Violations - No Licensed/Certified Operator | ST6 |
| December 8, 2020 | Pretreatment - Failure to Develop/Enforce Standards | ST6 |
| December 8, 2020 | Failure to enforce against pass through and/or interference (Level I) | ST6 |
| November 16, 2020 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| October 1, 2019 | Pretreatment - Failure to Develop/Enforce Standards | ST6 |
| October 1, 2019 | Failure to enforce against pass through and/or interference (Level I) | ST6 |
| July 26, 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.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.