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Clean Water Act discharge permit · NPDES COR901592

U S GYPSUM DENVER, Denver, CO: NPDES COR901592 discharge permit, effluent exceedances, inspections, penalties

U S GYPSUM DENVER, held by United State Gypsum Co, holds NPDES permit COR901592, which discharges to Havana Ponds. EPA’s file records it issued November 5, 2021 and expiring December 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.

What the register holds for U S GYPSUM DENVER: its NPDES ID, its permit type and status, its dates, its address in Denver, Colorado, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR901592.

Identity

Facility as filedU S GYPSUM DENVER
Permittee as filedUnited State Gypsum Co
NPDES IDCOR901592
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedNovember 5, 2021
Expiration dateDecember 31, 2025
AddressDenver, CO 80239
Receiving waterHavana Ponds
SubwatershedCity of Thornton-South Platte River (HUC 101900030402)
Other EPA IDs (FRS)ICIS-AIR source CO0000000803102517

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES COR901592.

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 COR901592.

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, COR901592.

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How we handle your data → Privacy

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 COR901592 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 NPDES permit COR901592 for U S GYPSUM DENVER in Denver, Colorado, held by United State Gypsum Co, with a status of Effective and a minor discharger classification under industrial stormwater coverage. The listed figures are 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, with the permit issued November 5, 2021 and expiring December 31, 2025, discharging to Havana Ponds in the City of Thornton-South Platte River subwatershed (HUC 101900030402).