Clean Water Act discharge permit · NPDES MI0042676
YCUA REGIONAL WWTP, Ypsilanti, MI: NPDES MI0042676 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 25Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
YCUA REGIONAL WWTP, held by Ypsilanti Community Utilities Authority, holds NPDES permit MI0042676, which discharges to Lower Rouge River. EPA’s file records it issued February 22, 2018 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 | YCUA REGIONAL WWTP |
|---|---|
| Permittee as filed | Ypsilanti Community Utilities Authority |
| NPDES ID | MI0042676 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 22, 2018 |
| Expiration date | October 1, 2021 |
| Issuing agency | State |
| Address | Ypsilanti, MI 48198 |
| Receiving water | Lower Rouge River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Molt Drain-Lower River Rouge (HUC 040900040302) |
| Program components on file | Biosolids, POTW, Pretreatment |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler MID980703920; ICIS-AIR source MI00000000000B6237 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 30Pollutants on file
- 25Under a numeric limit
- 28With a violation of any kind
- 4With 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] | 22 | 35 | 5 | June 30, 2014 | 187% over the limit |
| Nitrogen, ammonia total [as N] | 36 | 27 | 3 | May 31, 2024 | 560% over the limit |
| Solids, total suspended | 10 | 11 | 3 | January 31, 2020 | 23% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 30 | 27 | 2 | June 30, 2010 | 530% over the limit |
| Oxygen, dissolved [DO] | 6 | 21 | 0 | ||
| Mercury, total [as Hg] | 14 | 16 | 0 | ||
| pH | 6 | 8 | 0 | ||
| Flow, in conduit or thru treatment plant | 5 | 8 | 0 | ||
| Coliform, fecal general | 4 | 8 | 0 | ||
| Arsenic, total [as As] | 0 | 4 | 0 | ||
| Perfluorooctanesulfonate | 0 | 4 | 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 | ||
| Chloride [as Cl] | 0 | 2 | 0 | ||
| Sulfate, total [as SO4] | 0 | 2 | 0 | ||
| Chlorine, total residual | 0 | 2 | 0 | ||
| Cyanide [A] | 10 | 0 | 0 | ||
| Di[2-ethylhexyl] phthalate [DEHP] | 10 | 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
- 13Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 8, 2024 | Pretreatment - Failure to Develop/Enforce Standards | ST6 |
| February 8, 2024 | Failure to enforce standards, local limits, and reporting requirements (>15% SNC SIU) (Level II) | ST6 |
| July 22, 2021 | Pretreatment - Failure to Develop/Enforce Standards | ST6 |
| July 22, 2021 | Failure to enforce standards, local limits, and reporting requirements (>15% SNC SIU) (Level II) | ST6 |
| December 20, 2020 | WW SSO - Discharge to Waters | ST6 |
| December 20, 2020 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| September 6, 2019 | Effluent Violations - Narrative Effluent Violation | ST6 |
| May 1, 2019 | Reporting Violations - Failure to Notify | ST6 |
| May 1, 2019 | WW SSO - Discharge to Waters | ST6 |
| May 1, 2019 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| April 26, 2019 | Reporting Violations - Failure to Notify | ST6 |
| April 2, 2019 | WW SSO - Discharge to Waters | ST6 |
| April 2, 2019 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | 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.