Clean Water Act discharge permit · NPDES MN0023108
COLOGNE WWTP, Cologne, MN: NPDES MN0023108 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
COLOGNE WWTP, held by COLOGNE, holds NPDES permit MN0023108, which discharges to Benton L Via Dt. EPA’s file records it issued December 27, 2012 and expiring November 30, 2017. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | COLOGNE WWTP |
|---|---|
| Permittee as filed | COLOGNE |
| NPDES ID | MN0023108 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | December 27, 2012 |
| Expiration date | November 30, 2017 |
| Address | Cologne, MN 55322 |
| Receiving water | BENTON L VIA DT |
| Subwatershed | Upper Carver Creek (HUC 070200121001) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 8Pollutants on file
- 0Under a numeric limit
- 8With a violation of any kind
- 3With 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 | 0 | 3 | 1 | October 31, 1996 | |
| Solids, total suspended | 0 | 1 | 1 | May 31, 1994 | 16% over the limit |
| Chlorine, total residual | 0 | 1 | 1 | June 30, 2026 | 163% over the limit |
| Flow, in conduit or thru treatment plant | 0 | 9 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 1 | 0 | ||
| Chloride [as Cl] | 0 | 1 | 0 | ||
| Solids, total dissolved | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 1, 2023 | Biosolids - Land Application: Pollutant Limit Ceiling Violation | 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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MN0023108.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 MN0023108 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.