Clean Water Act discharge permit · NPDES MI0056324
KALAMAZOO LAKE WWTP, Saugatuck, MI: NPDES MI0056324 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 26Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
KALAMAZOO LAKE WWTP, held by Kalamazoo Lake Sewer & Water Authority, holds NPDES permit MI0056324, which discharges to Kalamazoo River. EPA’s file records it issued December 5, 2016 and expiring October 1, 2020. 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 | KALAMAZOO LAKE WWTP |
|---|---|
| Permittee as filed | Kalamazoo Lake Sewer & Water Authority |
| NPDES ID | MI0056324 |
| 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 | December 5, 2016 |
| Expiration date | October 1, 2020 |
| Issuing agency | State |
| Address | Saugatuck, MI 49453 |
| Receiving water | Kalamazoo River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Goshorn Creek-Kalamazoo River (HUC 040500030912) |
| 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
- 26Under 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 |
|---|---|---|---|---|---|
| Chlorine, total residual | 1 | 37 | 6 | December 31, 2025 | 795% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 87 | 3 | August 31, 2016 | 55% over the limit |
| Oxygen, dissolved [DO] | 1 | 23 | 2 | August 31, 2010 | 100% over the limit |
| Solids, total suspended | 4 | 87 | 1 | April 30, 2013 | 6% over the limit |
| pH | 2 | 42 | 1 | March 31, 2001 | |
| Solids, suspended percent removal | 2 | 21 | 1 | April 30, 2013 | 47% over the limit |
| Mercury, total [as Hg] | 6 | 386 | 0 | ||
| Phosphorus, total [as P] | 4 | 48 | 0 | ||
| Coliform, fecal general | 2 | 44 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 40 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 2 | 20 | 0 | ||
| Hexachlorobenzene | 0 | 11 | 0 | ||
| Solids, total | 3 | 6 | 0 | ||
| Arsenic, dry weight | 3 | 6 | 0 | ||
| Selenium, dry weight | 3 | 6 | 0 | ||
| Copper, dry weight | 3 | 6 | 0 | ||
| Cadmium, dry weight | 3 | 6 | 0 | ||
| Nitrogen, total Kjeldahl | 3 | 6 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 6 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 6 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 6 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 6 | 0 | ||
| Nitrogen, sludge, total, dry weight [as N] | 3 | 6 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 6 | 0 | ||
| Potassium, sludge, total, dry weight [as K] | 3 | 6 | 0 | ||
| Phosphorus, sludge, total, dry weight [as P] | 3 | 6 | 0 | ||
| Chloride [as Cl] | 0 | 4 | 0 | ||
| Sulfate, total [as SO4] | 0 | 4 | 0 | ||
| Nitrogen, ammonia total [as N] | 3 | 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
- 17Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 21, 2026 | Reporting Violations - Late Submittal of DMRs | ST6 |
| August 21, 2025 | Reporting Violations - Late Submittal of DMRs | ST6 |
| July 24, 2025 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| July 24, 2025 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| July 23, 2025 | Management Practice Violations - No Licensed/Certified Operator | ST6 |
| March 21, 2025 | Reporting Violations - Late Submittal of DMRs | ST6 |
| August 24, 2023 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| December 1, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| June 21, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| October 31, 2021 | Reporting Violations - Late Submittal of DMRs | ST6 |
| October 4, 2021 | Management Practice Violations - Best Management Practice Deficiencies | ST6 |
| October 4, 2021 | Failure to eliminate or relocate industrial stormwater outfalls from identified sensitive areas | ST6 |
| October 4, 2021 | Other noncompliance related to industrial stormwater discharges | ST6 |
| September 28, 2021 | Management Practice Violations - Best Management Practice Deficiencies | ST6 |
| September 28, 2021 | Failure to eliminate or relocate industrial stormwater outfalls from identified sensitive areas | ST6 |
| September 28, 2021 | Other noncompliance related to industrial stormwater discharges | ST6 |
| August 30, 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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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 MI0056324 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.