Clean Water Act discharge permit · NPDES MI0020672
HARBOR BEACH WWTP, Harbor Beach, MI: NPDES MI0020672 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 27Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
HARBOR BEACH WWTP, held by City of Harbor Beach, holds NPDES permit MI0020672, which discharges to Lake Huron. EPA’s file records it issued August 31, 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 | HARBOR BEACH WWTP |
|---|---|
| Permittee as filed | City of Harbor Beach |
| NPDES ID | MI0020672 |
| 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 | August 31, 2020 |
| Expiration date | October 1, 2024 |
| Issuing agency | State |
| Address | Harbor Beach, MI 48441 |
| Receiving water | Lake Huron |
| Subwatershed | Spring Creek-Frontal Lake Huron (HUC 040801040105) |
| Program components on file | Biosolids, POTW |
| 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
- 15With 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 |
|---|---|---|---|---|---|
| Mercury, total [as Hg] | 6 | 96 | 8 | October 31, 2022 | 153% over the limit |
| Coliform, fecal general | 2 | 25 | 7 | September 30, 2022 | 327% over the limit |
| Solids, suspended percent removal | 2 | 15 | 7 | April 30, 2021 | 87% over the limit |
| Phosphorus, total [as P] | 4 | 19 | 5 | February 29, 2020 | 170% over the limit |
| Solids, total suspended | 4 | 30 | 2 | December 31, 2018 | 60% over the limit |
| Chlorine, total residual | 1 | 9 | 2 | March 31, 2019 | 795% over the limit |
| Spinosad [DE-105] | 4 | 98 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 80 | 0 | ||
| Nitrogen, ammonia total [as N] | 16 | 28 | 0 | ||
| pH | 2 | 16 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 14 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 2 | 8 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 8 | 0 | ||
| Copper, total [as Cu] | 0 | 4 | 0 | ||
| Dechlorination reagent, gen | 0 | 3 | 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 |
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 |
|---|---|---|
| April 21, 2026 | Reporting Violations - Late Submittal of DMRs | ST6 |
| October 21, 2024 | Reporting Violations - Late Submittal of DMRs | ST6 |
| October 21, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| February 21, 2022 | Reporting Violations - Late Submittal of DMRs | 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 MI0020672 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 October 14, 2026.