Clean Water Act discharge permit · NPDES MN0020133
MONTEVIDEO WWTP, Montevideo, MN: NPDES MN0020133 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 13Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
MONTEVIDEO WWTP, held by MONTEVIDEO, holds NPDES permit MN0020133, which discharges to Chippewa R. EPA’s file records it issued March 20, 2009 and expiring February 28, 2014. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | MONTEVIDEO WWTP |
|---|---|
| Permittee as filed | MONTEVIDEO |
| NPDES ID | MN0020133 |
| 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 20, 2009 |
| Expiration date | February 28, 2014 |
| Address | Montevideo, MN 56265 |
| Receiving water | CHIPPEWA R |
| Subwatershed | Chippewa River (HUC 070200051105) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 29Pollutants on file
- 13Under a numeric limit
- 24With 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 | 10 | 4 | 3 | June 30, 2025 | 51% over the limit |
| Chlorine, total residual | 2 | 3 | 3 | July 31, 2022 | 163% over the limit |
| Solids, suspended percent removal | 2 | 2 | 2 | July 31, 2006 | 50% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 10 | 1 | 1 | July 31, 2022 | 78% over the limit |
| pH | 6 | 1 | 1 | March 31, 2025 | |
| BOD, carb-5 day, 20 deg C, percent removal | 2 | 1 | 1 | August 31, 2007 | 15% over the limit |
| Precipitation, total defined period/in | 1 | 16 | 0 | ||
| Mercury, total [as Hg] | 3 | 3 | 0 | ||
| Specific conductance | 0 | 1 | 0 | ||
| Bicarbonate ion- [as HCO3] | 0 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 1 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 1 | 0 | ||
| Calcium, total [as Ca] | 0 | 1 | 0 | ||
| Magnesium, total [as Mg] | 0 | 1 | 0 | ||
| Sodium, total [as Na] | 0 | 1 | 0 | ||
| Potassium, total [as K] | 0 | 1 | 0 | ||
| Chloride [as Cl] | 0 | 1 | 0 | ||
| Sulfate, total [as SO4] | 0 | 1 | 0 | ||
| Arsenic, total [as As] | 0 | 1 | 0 | ||
| Copper, dissolved [as Cu] | 0 | 1 | 0 | ||
| Copper, total [as Cu] | 0 | 1 | 0 | ||
| Hardness, Ca Mg Calculated [mg/L as CaCO3] | 0 | 1 | 0 | ||
| Solids, total dissolved | 0 | 1 | 0 | ||
| Mercury, dissolved [as Hg] | 0 | 1 | 0 | ||
| Nitrogen, ammonia total [as N] | 16 | 0 | 0 | ||
| Phosphorus, total [as P] | 5 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 3 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 0 | 0 | ||
| Coliform, fecal MPN + membrane ftl 44.5 C | 2 | 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 |
|---|---|---|
| February 20, 2025 | Effluent Violations - Unapproved Bypass | 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
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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 MN0020133 there.
Nearby on the register
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- Every permit record in Minnesota, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.