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Clean Water Act discharge permit · NPDES NDX000266

AIRGAS USA, LLC, Tioga, ND: NPDES NDX000266 discharge permit, effluent exceedances, inspections, penalties

AIRGAS USA, LLC, held by Tom Stringer, holds NPDES permit NDX000266. EPA’s file records it issued June 13, 2025 and expiring March 31, 2030. 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.

What the register holds for AIRGAS USA, LLC: its NPDES ID, its permit type and status, its dates, its address in Tioga, North Dakota. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES NDX000266.

Identity

Facility as filedAIRGAS USA, LLC
Permittee as filedTom Stringer
NPDES IDNDX000266
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedJune 13, 2025
Expiration dateMarch 31, 2030
Issuing agencyNorth Dakota Department of Environmental Quality
AddressTioga, ND 58852
SubwatershedTioga Municipal Airport (HUC 101101011404)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES NDX000266.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES NDX000266.

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 NDX000266 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

The Tioga Municipal Airport subwatershed contains 3 NPDES permits, counting AIRGAS USA, LLC. Mountrail County has 4 storm water industrial permits on EPA's NPDES register, counting this permit. The permit has no pollutant under a numeric limit and no effluent exceedance on record.