Clean Water Act discharge permit · NPDES MI0020532
ALLEGAN WRRF, Allegan, MI: NPDES MI0020532 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 26Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
ALLEGAN WRRF, held by City of Allegan, holds NPDES permit MI0020532, which discharges to Kalamazoo River. EPA’s file records it issued April 28, 2021 and expiring October 1, 2025. 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 | ALLEGAN WRRF |
|---|---|
| Permittee as filed | City of Allegan |
| NPDES ID | MI0020532 |
| 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 | April 28, 2021 |
| Expiration date | October 1, 2025 |
| Issuing agency | State |
| Address | Allegan, MI 49010 |
| Receiving water | Kalamazoo River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Lake Allegan-Kalamazoo River (HUC 040500030907) |
| Program components on file | Biosolids, POTW |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler MIK266291442 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 29Pollutants on file
- 26Under a numeric limit
- 15With a violation of any kind
- 9With 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, total suspended | 4 | 160 | 36 | February 29, 2024 | 584% over the limit |
| Coliform, fecal general | 2 | 57 | 17 | February 29, 2024 | 916% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 141 | 9 | July 31, 2013 | 118% over the limit |
| Chlorine, total residual | 0 | 28 | 8 | May 31, 2005 | 1,163% over the limit |
| Copper, total [as Cu] | 2 | 6 | 6 | May 31, 2018 | 541% over the limit |
| Solids, suspended percent removal | 2 | 36 | 5 | October 31, 2009 | 385% over the limit |
| Phosphorus, total [as P] | 4 | 68 | 4 | January 31, 2024 | 60% over the limit |
| pH | 2 | 69 | 3 | January 31, 2024 | |
| BOD, carb-5 day, 20 deg C, percent removal | 2 | 33 | 1 | January 31, 2009 | 30% over the limit |
| Mercury, total [as Hg] | 6 | 236 | 0 | ||
| Nitrogen, ammonia total [as N] | 4 | 89 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 66 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 32 | 0 | ||
| Pentachlorophenol | 0 | 28 | 0 | ||
| Silver, total [as Ag] | 0 | 7 | 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
- 14Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 11, 2025 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| September 3, 2025 | Effluent Violations - Narrative Effluent Violation | ST6 |
| August 24, 2025 | Effluent Violations - Narrative Effluent Violation | ST6 |
| September 30, 2024 | Failure to issue/reissue control mechanisms to at least 90% of SIU/CIUs w/in 6 months (Level II) | ST6 |
| September 27, 2024 | Monitoring Violations - Analysis not Conducted | ST6 |
| September 16, 2024 | Failure to enforce standards, local limits, and reporting requirements (>15% SNC SIU) (Level II) | ST6 |
| March 1, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| October 30, 2023 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| September 26, 2023 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| October 31, 2021 | Reporting Violations - Late Submittal of DMRs | ST6 |
| September 29, 2021 | Pretreatment - Failure to Develop/Enforce Standards | ST6 |
| September 29, 2021 | Failure to enforce standards, local limits, and reporting requirements (>15% SNC SIU) (Level II) | ST6 |
| March 28, 2018 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| March 28, 2018 | Management Practice Violations - Improper Chemical Handling | 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.