Clean Water Act discharge permit · NPDES MN0025330
ZUMBROTA WWTP, Zumbrota, MN: NPDES MN0025330 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 19Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
ZUMBROTA WWTP, held by Zumbrota WWTP, holds NPDES permit MN0025330, which discharges to Zumbro R N Fk. EPA’s file records it issued March 21, 2014 and expiring February 28, 2019. 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 | ZUMBROTA WWTP |
|---|---|
| Permittee as filed | Zumbrota WWTP |
| NPDES ID | MN0025330 |
| 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 | March 21, 2014 |
| Expiration date | February 28, 2019 |
| Address | Zumbrota, MN 55992 |
| Receiving water | ZUMBRO R N FK |
| Subwatershed | North Fork Zumbro River (HUC 070400040405) |
| 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
- 31Pollutants on file
- 19Under a numeric limit
- 23With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 7 | 49 | 43 | July 31, 2026 | 942% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 34 | 28 | July 31, 2022 | 376% over the limit |
| Solids, suspended percent removal | 1 | 12 | 11 | June 30, 2026 | 307% over the limit |
| Coliform, fecal MPN + membrane ftl 44.5 C | 1 | 3 | 3 | October 31, 2025 | 67% over the limit |
| pH | 4 | 5 | 1 | May 31, 1998 | |
| Chlorine, total residual | 1 | 5 | 1 | October 31, 2014 | 1,742% over the limit |
| Nitrogen, Kjeldahl, total [as N] | 1 | 7 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 7 | 0 | ||
| Nitrogen, total [as N] | 0 | 7 | 0 | ||
| Solids, total dissolved | 1 | 5 | 0 | ||
| Bicarbonate ion- [as HCO3] | 0 | 5 | 0 | ||
| Specific conductance | 0 | 4 | 0 | ||
| Calcium, total [as Ca] | 0 | 4 | 0 | ||
| Magnesium, total [as Mg] | 0 | 4 | 0 | ||
| Sodium, total [as Na] | 0 | 4 | 0 | ||
| Potassium, total [as K] | 0 | 4 | 0 | ||
| Chloride [as Cl] | 0 | 4 | 0 | ||
| Sulfate, total [as SO4] | 0 | 4 | 0 | ||
| Hardness, Ca Mg Calculated [mg/L as CaCO3] | 0 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 3 | 3 | 0 | ||
| Carbonaceous oxygen demand, % removal | 0 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 1 | 0 | ||
| Lead, total [as Pb] | 0 | 1 | 0 | ||
| Phosphorus, total [as P] | 3 | 0 | 0 | ||
| Precipitation, total defined period/in | 1 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 0 | 0 | ||
| Copper, dissolved [as Cu] | 1 | 0 | 0 | ||
| Copper, total [as Cu] | 1 | 0 | 0 | ||
| Mercury, dissolved [as Hg] | 1 | 0 | 0 | ||
| Mercury, total [as Hg] | 1 | 0 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MN0025330.
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
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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 MN0025330 there.
Nearby on the register
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- Discharge permits in Minnesota
- Every permit record in Minnesota, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.