Clean Water Act discharge permit · NPDES MN0068241

MESABI METALLICS MINE, Nashwauk, MN: NPDES MN0068241 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
15Pollutants under a numeric limit
0Pollutants with an effluent exceedance

MESABI METALLICS MINE, held by Mesabi Metallics Company LLC, holds NPDES permit MN0068241. EPA’s file records it issued March 1, 2026 and expiring February 28, 2031. 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.

What the register holds for MESABI METALLICS MINE: its NPDES ID, its permit type and status, its dates, its address in Nashwauk, Minnesota, and 15 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MN0068241.

Identity

Facility as filed	MESABI METALLICS MINE
Permittee as filed	Mesabi Metallics Company LLC
NPDES ID	MN0068241
Permit status	Effective
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	March 1, 2026
Expiration date	February 28, 2031
Issuing agency	STA
Address	Nashwauk, MN 55769
Receiving water impaired	303(D) Listed
Subwatershed	Swan Lake (HUC 070101030402)
SIC	1011 – Iron Ores

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

15Pollutants on file
15Under a numeric limit
0With a violation of any kind
0With 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	6	0	0
pH	4	0	0
Phosphorus, total [as P]	4	0	0
Iron, dissolved [as Fe]	4	0	0
Flow, in conduit or thru treatment plant	4	0	0
Specific conductance	2	0	0
Nitrogen, total [as N]	2	0	0
Nitrogen, Kjeldahl, total [as N]	2	0	0
Nitrite + Nitrate total [as N]	2	0	0
Sulfate, total [as SO4]	2	0	0
Oil and grease	2	0	0
Hardness, Ca Mg Calculated [mg/L as CaCO3]	2	0	0
Solids, total dissolved	2	0	0
Mercury, dissolved [as Hg]	2	0	0
Mercury, total [as Hg]	2	0	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MN0068241.

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 MN0068241.

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.

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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 MN0068241 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers NPDES permit MN0068241 for MESABI METALLICS MINE in Nashwauk, Minnesota, held by Mesabi Metallics Company LLC, with an Effective status, a Minor discharger class, and an individual permit issued March 1, 2026 and expiring February 28, 2031. The page lists 15 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and it records no violation for this permit in EPA's effluent violation or single-event violation files. The status and dates reflect EPA's permit file as loaded on October 14, 2026.