Clean Water Act discharge permit · NPDES MI0053562
DIMONDALE/WINDSOR WWTP, Dimondale, MI: NPDES MI0053562 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 23Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
DIMONDALE/WINDSOR WWTP, held by Village of Dimondale, holds NPDES permit MI0053562, which discharges to Grand River. EPA’s file records it issued October 23, 2018 and expiring October 1, 2022. 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 | DIMONDALE/WINDSOR WWTP |
|---|---|
| Permittee as filed | Village of Dimondale |
| NPDES ID | MI0053562 |
| 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 | October 23, 2018 |
| Expiration date | October 1, 2022 |
| Issuing agency | State |
| Address | Dimondale, MI 48821 |
| Receiving water | Grand River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Silver Creek-Grand River (HUC 040500040703) |
| 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
- 24Pollutants on file
- 23Under a numeric limit
- 24With 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 |
|---|---|---|---|---|---|
| Solids, suspended percent removal | 2 | 30 | 8 | August 31, 2011 | 967% over the limit |
| Oxygen, dissolved [DO] | 2 | 40 | 7 | June 30, 2024 | 25% over the limit |
| Nitrogen, ammonia total [as N] | 8 | 66 | 2 | July 31, 2020 | 60% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 8 | 133 | 1 | June 30, 2026 | 13% over the limit |
| Solids, total suspended | 8 | 89 | 1 | July 31, 2014 | 9% over the limit |
| Coliform, fecal general | 2 | 47 | 1 | March 31, 2011 | 31% over the limit |
| Phosphorus, total [as P] | 4 | 23 | 1 | November 30, 2010 | 27% over the limit |
| Solids, total | 3 | 140 | 0 | ||
| Arsenic, dry weight | 3 | 140 | 0 | ||
| Selenium, dry weight | 3 | 140 | 0 | ||
| Copper, dry weight | 3 | 140 | 0 | ||
| Cadmium, dry weight | 3 | 140 | 0 | ||
| Nitrogen, total Kjeldahl | 3 | 140 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 140 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 140 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 140 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 140 | 0 | ||
| Nitrogen, sludge, total, dry weight [as N] | 3 | 140 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 140 | 0 | ||
| Potassium, sludge, total, dry weight [as K] | 3 | 140 | 0 | ||
| Phosphorus, sludge, total, dry weight [as P] | 3 | 140 | 0 | ||
| pH | 2 | 46 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 46 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 0 | 20 | 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
- 7Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 30, 2023 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| March 16, 2021 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| March 16, 2021 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| October 31, 2020 | Reporting Violations - Late Submittal of DMRs | ST6 |
| March 18, 2020 | WW SSO - Discharge to Waters | ST6 |
| March 18, 2020 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| February 21, 2017 | 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, MI0053562.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 MI0053562 there.
Nearby on the register
- Discharge permits in Dimondale
- Every permit record in Dimondale, A to Z
- Discharge permits in Michigan
- Every permit record in Michigan, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.