Clean Water Act discharge permit · NPDES MN0020257
NKASD WWTP, International Falls, MN: NPDES MN0020257 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 17Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
NKASD WWTP holds NPDES permit MN0020257, which discharges to Rainy R. EPA’s file records it issued January 24, 2012 and expiring December 31, 2016. 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 | NKASD WWTP |
|---|---|
| Permittee as filed | NKASD WWTP |
| NPDES ID | MN0020257 |
| 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 | January 24, 2012 |
| Expiration date | December 31, 2016 |
| Address | International Falls, MN 56649 |
| Receiving water | RAINY R |
| Subwatershed | City of International Falls-Rainy River (HUC 090300080501) |
| 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
- 17Pollutants on file
- 17Under a numeric limit
- 6With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| BOD, carb-5 day, 20 deg C, percent removal | 1 | 14 | 14 | October 31, 2013 | 93% over the limit |
| Solids, suspended percent removal | 1 | 8 | 8 | November 30, 2024 | 60% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 7 | 3 | 3 | March 31, 2002 | 59% over the limit |
| pH | 4 | 2 | 2 | July 31, 2021 | |
| Phosphorus, total [as P] | 5 | 1 | 1 | August 31, 2024 | 10% over the limit |
| Flow, in conduit or thru treatment plant | 8 | 2 | 0 | ||
| Solids, total suspended | 7 | 0 | 0 | ||
| Mercury, total [as Hg] | 5 | 0 | 0 | ||
| Precipitation, total defined period/in | 1 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 0 | 0 | ||
| Cyanide, free [amenable to chlorination] | 1 | 0 | 0 | ||
| Coliform, fecal MPN + membrane ftl 44.5 C | 1 | 0 | 0 | ||
| Chlorine, total residual | 1 | 0 | 0 | ||
| Solids, total dissolved | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| September 3, 2020 | Biosolids - Land Application: Invalid Monitoring or Unrepresentative Sample Violation | ST6 |
| September 3, 2020 | Effluent Violations - Unauthorized Discharge | ST6 |
| April 1, 2020 | Permit Violations - Failure to Submit Timely Permit Renewal Application | 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 MN0020257 there.
Nearby on the register
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- Every permit record in International Falls, A to Z
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- Every permit record in Minnesota, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.