Clean Water Act discharge permit · NPDES MN0055948
US STEEL/KEEWATIN TACONITE, Keewatin, MN: NPDES MN0055948 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
US STEEL/KEEWATIN TACONITE holds NPDES permit MN0055948, which discharges to Hay Cr-Swan Lk/Welcome Cr-W Swan R. EPA’s file records it issued March 10, 2006 and expiring February 28, 2011. 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 | US STEEL/KEEWATIN TACONITE |
|---|---|
| Permittee as filed | US STEEL/KEEWATIN TACONITE |
| NPDES ID | MN0055948 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | March 10, 2006 |
| Expiration date | February 28, 2011 |
| Address | Keewatin, MN 55753 |
| Receiving water | HAY CR-SWAN LK/WELCOME CR-W SWAN R |
| Subwatershed | Hay Creek (HUC 070101030401) |
| SIC | 1011 – Iron Ores |
| Other EPA IDs (FRS) | ICIS-AIR source MN0000002713700063 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 12Pollutants on file
- 12Under a numeric limit
- 4With a violation of any kind
- 1With 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 | 4 | 29 | 1 | September 30, 2017 | |
| Solids, total suspended | 5 | 28 | 0 | ||
| Iron, dissolved [as Fe] | 4 | 28 | 0 | ||
| Flow, in conduit or thru treatment plant | 10 | 24 | 0 | ||
| Specific conductance | 3 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 0 | 0 | ||
| Sulfate, total [as SO4] | 2 | 0 | 0 | ||
| Fluoride, total [as F] | 2 | 0 | 0 | ||
| Mercury, total [as Hg] | 2 | 0 | 0 | ||
| Turbidity | 1 | 0 | 0 | ||
| Precipitation, total defined period/in | 1 | 0 | 0 | ||
| Evaporation, Accumulated | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| April 10, 2025 | Effluent Violations - Numeric effluent violation | EP6 |
| February 27, 2024 | Effluent Violations - Numeric effluent violation | EP6 |
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, MN0055948.
Start the watch
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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 MN0055948 there.
Nearby on the register
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- Every permit record in Keewatin, 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.