Clean Water Act discharge permit · NPDES MI0023973
SAGINAW TWP WWTP, Saginaw, MI: NPDES MI0023973 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 28Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
SAGINAW TWP WWTP, held by Saginaw Charter Township, holds NPDES permit MI0023973, which discharges to Tittabawassee River. EPA’s file records it issued August 30, 2019 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 | SAGINAW TWP WWTP |
|---|---|
| Permittee as filed | Saginaw Charter Township |
| NPDES ID | MI0023973 |
| 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 | August 30, 2019 |
| Expiration date | October 1, 2023 |
| Issuing agency | State |
| Address | Saginaw, MI 48638 |
| Receiving water | Tittabawassee River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Parker Swamp Drain-Tittabawassee River (HUC 040802010607) |
| Program components on file | Biosolids, CSO, 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
- 37Pollutants on file
- 28Under a numeric limit
- 37With a violation of any kind
- 10With 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 |
|---|---|---|---|---|---|
| Coliform, fecal general | 4 | 56 | 17 | June 30, 2026 | 1,400% over the limit |
| Solids, total suspended | 6 | 71 | 13 | April 30, 2026 | 756% over the limit |
| Chlorine, total residual | 3 | 33 | 11 | February 28, 2022 | 3,584% over the limit |
| Mercury, total [as Hg] | 6 | 39 | 10 | September 30, 2011 | 125% over the limit |
| pH | 4 | 43 | 9 | December 31, 2025 | |
| Phosphorus, total [as P] | 6 | 56 | 6 | November 30, 2023 | 200% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 10 | 37 | 3 | April 30, 2009 | 124% over the limit |
| Solids, suspended percent removal | 2 | 10 | 3 | April 30, 2013 | 60% over the limit |
| BOD, carb-5 day, 20 deg C, percent removal | 2 | 18 | 1 | April 30, 2013 | 7% over the limit |
| Copper, total [as Cu] | 0 | 13 | 1 | April 30, 2009 | 19% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 56 | 0 | ||
| Nitrogen, ammonia total [as N] | 7 | 44 | 0 | ||
| BOD, 5-day, 20 deg. C | 0 | 24 | 0 | ||
| Thallium, total [as Tl] | 0 | 24 | 0 | ||
| Silver, total [as Ag] | 0 | 24 | 0 | ||
| Perfluorooctanoic acid (PFOA) | 4 | 18 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 18 | 0 | ||
| Perfluorooctanesulfonate | 4 | 12 | 0 | ||
| Cadmium, total [as Cd] | 0 | 12 | 0 | ||
| Beryllium, total [as Be] | 0 | 6 | 0 | ||
| Cyanide [A] | 0 | 6 | 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 | 1 | 0 | ||
| Sulfate, total [as SO4] | 0 | 1 | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 16, 2024 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| November 18, 2024 | Failure to enforce standards, local limits, and reporting requirements (>15% SNC SIU) (Level II) | ST6 |
| September 11, 2023 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| September 19, 2022 | Monitoring Violations - Invalid/Unrepresentative Sample | 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.