Clean Water Act discharge permit · NPDES MI0022829
DEXTER WWTP, Dexter, MI: NPDES MI0022829 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 29Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
DEXTER WWTP, held by Daniel Schlaff, City of Dexter, holds NPDES permit MI0022829. EPA’s file records it issued September 28, 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 | DEXTER WWTP |
|---|---|
| Permittee as filed | Daniel Schlaff, City of Dexter |
| NPDES ID | MI0022829 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | September 28, 2018 |
| Expiration date | October 1, 2022 |
| Issuing agency | State |
| Address | Dexter, MI 48130 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Sutton Lake-Mill Creek (HUC 040900050204) |
| 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
- 29Pollutants on file
- 29Under a numeric limit
- 28With 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 | 2 | 43 | 8 | June 30, 2020 | 52,532% over the limit |
| Phosphorus, total [as P] | 20 | 203 | 3 | July 31, 2009 | 73% over the limit |
| Coliform, fecal general | 2 | 66 | 3 | October 31, 2013 | 64% over the limit |
| Solids, total suspended | 4 | 126 | 2 | May 31, 2011 | 78% over the limit |
| Oxygen, dissolved [DO] | 2 | 38 | 2 | September 30, 2018 | 20% over the limit |
| pH | 2 | 63 | 1 | June 30, 2017 | |
| BOD, carbonaceous [5 day, 20 C] | 4 | 124 | 0 | ||
| Mercury, total [as Hg] | 4 | 102 | 0 | ||
| Nitrogen, ammonia total [as N] | 4 | 70 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 62 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 2 | 31 | 0 | ||
| Solids, suspended percent removal | 2 | 31 | 0 | ||
| Copper, total [as Cu] | 4 | 20 | 0 | ||
| Arsenic, dry weight | 3 | 12 | 0 | ||
| Selenium, dry weight | 3 | 12 | 0 | ||
| Cadmium, dry weight | 3 | 12 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 12 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 12 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 12 | 0 | ||
| Phosphorus, sludge, total, dry weight [as P] | 3 | 12 | 0 | ||
| Solids, total | 3 | 11 | 0 | ||
| Copper, dry weight | 3 | 11 | 0 | ||
| Nitrogen, total Kjeldahl | 3 | 11 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 11 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 11 | 0 | ||
| Nitrogen, sludge, total, dry weight [as N] | 3 | 11 | 0 | ||
| Potassium, sludge, total, dry weight [as K] | 3 | 11 | 0 | ||
| Cyanide [A] | 1 | 1 | 0 | ||
| Vanadium, total [as V] | 1 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| April 21, 2021 | 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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Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.