Velarion Records

Clean Water Act discharge permit · NPDES TXRNECT47

STULZ AIR TECHNOLOGY SYSTEMS, Denton, TX: NPDES TXRNECT47 discharge permit, effluent exceedances, inspections, penalties

STULZ AIR TECHNOLOGY SYSTEMS, held by Stulz Air Technology Systems, Inc., holds NPDES permit TXRNECT47. EPA’s file records it issued August 25, 2026 and expiring August 13, 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 STULZ AIR TECHNOLOGY SYSTEMS: its NPDES ID, its permit type and status, its dates, its address in Denton, Texas. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXRNECT47.

Identity

Facility as filedSTULZ AIR TECHNOLOGY SYSTEMS
Permittee as filedStulz Air Technology Systems, Inc.
NPDES IDTXRNECT47
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedAugust 25, 2026
Expiration dateAugust 13, 2031
AddressDenton, TX 76208
NAICS333415 – Air-Conditioning & Warm Air Heating Equipment & Comm. & Indstrl Ref. Equipment Manufacturing
SIC3585 – Refrigeration And Heating Equipment

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

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXRNECT47.

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 TXRNECT47.

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 TXRNECT47 there.

Nearby on the register

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

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