Clean Water Act discharge permit · NPDES MI0043281
WEST IRON CO SA WWTP, Caspian, MI: NPDES MI0043281 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 28Pollutants under a numeric limit
- 11Pollutants with an effluent exceedance
WEST IRON CO SA WWTP, held by West Iron County Sewer Authority, holds NPDES permit MI0043281, which discharges to Iron River. EPA’s file records it issued September 23, 2019 and expiring October 1, 2023. 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 | WEST IRON CO SA WWTP |
|---|---|
| Permittee as filed | West Iron County Sewer Authority |
| NPDES ID | MI0043281 |
| 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 | September 23, 2019 |
| Expiration date | October 1, 2023 |
| Issuing agency | State |
| Address | Caspian, MI 49915 |
| Receiving water | Iron River |
| Subwatershed | Iron River (HUC 040301060308) |
| 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
- 31Pollutants on file
- 28Under a numeric limit
- 31With a violation of any kind
- 11With 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 | 12 | 8 | April 30, 2026 | 61% over the limit |
| Nitrogen, ammonia total [as N] | 11 | 11 | 4 | July 31, 2026 | 128% over the limit |
| Coliform, fecal general | 2 | 9 | 3 | April 30, 2023 | 89% over the limit |
| Chlorine, total residual | 1 | 7 | 3 | February 28, 2021 | 1,124% over the limit |
| Solids, total suspended | 4 | 18 | 2 | April 30, 2026 | 11% over the limit |
| Mercury, total [as Hg] | 6 | 14 | 2 | October 31, 2005 | 6,900% over the limit |
| pH | 2 | 10 | 2 | June 30, 2019 | |
| Toxicity, choice of species | 2 | 5 | 2 | October 31, 2020 | 99,999% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 8 | 21 | 1 | July 31, 2025 | 60% over the limit |
| BOD, carb-5 day, 20 deg C, percent removal | 2 | 4 | 1 | April 30, 2014 | 4% over the limit |
| Toxicity [acute], Ceriodaphnia dubia | 1 | 3 | 1 | March 31, 2009 | 20% over the limit |
| Phosphorus, total [as P] | 4 | 10 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 8 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 4 | 0 | ||
| Solids, total | 3 | 3 | 0 | ||
| Arsenic, dry weight | 3 | 3 | 0 | ||
| Selenium, dry weight | 3 | 3 | 0 | ||
| Copper, dry weight | 3 | 3 | 0 | ||
| Cadmium, dry weight | 3 | 3 | 0 | ||
| Nitrogen, total Kjeldahl | 3 | 3 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 3 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 3 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 3 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 3 | 0 | ||
| Nitrogen, sludge, total, dry weight [as N] | 3 | 3 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 3 | 0 | ||
| Potassium, sludge, total, dry weight [as K] | 3 | 3 | 0 | ||
| Phosphorus, sludge, total, dry weight [as P] | 3 | 3 | 0 | ||
| Static 48 Hr Chronic Pimphales Promelas | 0 | 3 | 0 | ||
| TU Static 24 Hr Acute Pimephales promelas | 0 | 2 | 0 | ||
| Copper, total [as Cu] | 0 | 1 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 28, 2018 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| July 6, 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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Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.