Clean Water Act discharge permit · NPDES MI0058623
CASS CO-LAKES AREA SA WWTP, Marcellus, MI: NPDES MI0058623 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 24Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
CASS CO-LAKES AREA SA WWTP, held by Cass County Board of Public Works, holds NPDES permit MI0058623, which discharges to Creamery Creek. EPA’s file records it issued September 11, 2017 and expiring October 1, 2021. 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 | CASS CO-LAKES AREA SA WWTP |
|---|---|
| Permittee as filed | Cass County Board of Public Works |
| NPDES ID | MI0058623 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 11, 2017 |
| Expiration date | October 1, 2021 |
| Issuing agency | State |
| Address | Marcellus, MI 49067 |
| Receiving water | Creamery Creek |
| Subwatershed | Pickerel Lake-Rocky River (HUC 040500010603) |
| 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
- 24Pollutants on file
- 24Under a numeric limit
- 7With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 11 | 6 | 6 | September 30, 2025 | 165% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 8 | 9 | 5 | August 31, 2025 | 300% over the limit |
| Coliform, fecal general | 2 | 4 | 4 | February 28, 2023 | 866% over the limit |
| pH | 2 | 3 | 3 | August 31, 2025 | |
| Phosphorus, total [as P] | 8 | 2 | 2 | September 30, 2022 | 250% over the limit |
| Solids, total suspended | 8 | 1 | 1 | January 31, 2023 | 27% over the limit |
| Oxygen, dissolved [DO] | 2 | 1 | 1 | June 30, 2018 | 6% over the limit |
| 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 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 2 | 0 | 0 | ||
| Solids, suspended percent removal | 2 | 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
- 8Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 21, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| January 21, 2020 | Reporting Violations - Late Submittal of DMRs | ST6 |
| November 23, 2019 | WW SSO - Discharge to Waters | ST6 |
| November 23, 2019 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| October 7, 2019 | Management Practice Violations - Failure to Maintain Records | ST6 |
| May 28, 2019 | WW SSO - Discharge to Waters | ST6 |
| May 28, 2019 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| April 21, 2018 | 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.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.