Clean Water Act discharge permit · NPDES MN0022195
DENNISON WWTP, Dennison, MN: NPDES MN0022195 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 21Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
DENNISON WWTP, held by Dennison city of, holds NPDES permit MN0022195. EPA’s file records it issued June 1, 2020 and expiring June 30, 2024. 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 | DENNISON WWTP |
|---|---|
| Permittee as filed | Dennison city of |
| NPDES ID | MN0022195 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | June 1, 2020 |
| Expiration date | June 30, 2024 |
| Issuing agency | STA |
| Address | Dennison, MN 55018 |
| Subwatershed | Town of Dennison (HUC 070400020502) |
| 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
- 21Pollutants on file
- 21Under a numeric limit
- 21With a violation of any kind
- 2With 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 |
|---|---|---|---|---|---|
| pH | 3 | 8 | 2 | August 31, 2024 | |
| Phosphorus, total [as P] | 4 | 9 | 1 | May 31, 2020 | 10% over the limit |
| Flow, in conduit or thru treatment plant | 9 | 12 | 0 | ||
| Solids, total suspended | 5 | 10 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 5 | 10 | 0 | ||
| Nitrogen, total [as N] | 2 | 4 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 4 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 4 | 0 | ||
| Specific conductance | 1 | 3 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 3 | 0 | ||
| Bicarbonate ion- [as HCO3] | 1 | 3 | 0 | ||
| Calcium, total [as Ca] | 1 | 3 | 0 | ||
| Magnesium, total [as Mg] | 1 | 3 | 0 | ||
| Sodium, total [as Na] | 1 | 3 | 0 | ||
| Potassium, total [as K] | 1 | 3 | 0 | ||
| Chloride [as Cl] | 1 | 3 | 0 | ||
| Sulfate, total [as SO4] | 1 | 3 | 0 | ||
| Hardness, Ca Mg Calculated [mg/L as CaCO3] | 1 | 3 | 0 | ||
| Solids, total dissolved | 1 | 3 | 0 | ||
| Precipitation, total defined period/in | 1 | 2 | 0 | ||
| Coliform, fecal MPN + membrane ftl 44.5 C | 1 | 2 | 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 MN0022195.
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 MN0022195 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.