Clean Water Act discharge permit · NPDES MI0021482
ROSCOMMON WWTP, Roscommon, MI: NPDES MI0021482 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 23Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
ROSCOMMON WWTP, held by Village of Roscommon, holds NPDES permit MI0021482, which discharges to South Branch Au Sable River. EPA’s file records it issued August 28, 2020 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 | ROSCOMMON WWTP |
|---|---|
| Permittee as filed | Village of Roscommon |
| NPDES ID | MI0021482 |
| 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 28, 2020 |
| Expiration date | October 1, 2023 |
| Issuing agency | State |
| Address | Roscommon, MI 48653 |
| Receiving water | South Branch Au Sable River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Hudson Creek-South Branch Au Sable River (HUC 040700070107) |
| 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
- 26Pollutants on file
- 23Under a numeric limit
- 26With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| Phosphorus, total [as P] | 4 | 83 | 7 | September 30, 2015 | 27% over the limit |
| Coliform, fecal general | 2 | 68 | 2 | July 31, 2016 | 209% over the limit |
| Nitrogen, ammonia total [as N] | 12 | 65 | 1 | July 31, 2019 | 22% over the limit |
| Solids, total suspended | 4 | 63 | 1 | September 30, 2019 | 43% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 33 | 1 | August 31, 2005 | 92% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 68 | 0 | ||
| pH | 2 | 66 | 0 | ||
| Chlorination | 0 | 38 | 0 | ||
| Wetland overflow, y/n response | 0 | 38 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 34 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 31 | 0 | ||
| Chlorine, total residual | 1 | 9 | 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 |
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
- 5Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 7, 2025 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| August 7, 2025 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| August 7, 2025 | Management Practice Violations - Failure to Maintain Records | ST6 |
| April 21, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| February 21, 2019 | 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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MI0021482.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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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 MI0021482 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.