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Clean Water Act discharge permit · NPDES MS0062570

AIRGAS USA LLC DBA AIRGAS DRY ICE, Star, MS: NPDES MS0062570 discharge permit, effluent exceedances, inspections, penalties

AIRGAS USA LLC DBA AIRGAS DRY ICE holds NPDES permit MS0062570. EPA’s file records it issued September 8, 2020 and expiring August 31, 2025. 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 filedAIRGAS USA LLC DBA AIRGAS DRY ICE
Permittee as filedAIRGAS USA LLC DBA AIRGAS DRY ICE
NPDES IDMS0062570
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedSeptember 8, 2020
Expiration dateAugust 31, 2025
Issuing agencyMDEQ
AddressStar, MS 39167

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

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
BOD, carbonaceous [5 day, 20 C]2102September 30, 2020130% over the limit
Oxygen, dissolved [DO]151September 30, 202012% over the limit
pH280
Nitrogen, ammonia total [as N]280
Flow, in conduit or thru treatment plant280
Nitrogen, total [as N]240
Phosphorus, total [as P]240

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 MS0062570.

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 MS0062570 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES MS0062570, held by AIRGAS USA LLC DBA AIRGAS DRY ICE in Star, MS, with an effective permit status and a Minor discharger class. The facts list 7 pollutants on file, 7 under a numeric limit, and 2 with an effluent exceedance.