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Clean Water Act discharge permit · NPDES COR901169

WESTLAKE ROYAL ROOFING - DENVER, Henderson, CO: NPDES COR901169 discharge permit, effluent exceedances, inspections, penalties

WESTLAKE ROYAL ROOFING - DENVER, held by Westlake Royal Roofing LLC, holds NPDES permit COR901169, which discharges to Detention Pond - North Fork Of South Platte River. EPA’s file records it issued November 9, 2012 and expiring June 30, 2017. 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.

Identity

Facility as filedWESTLAKE ROYAL ROOFING - DENVER
Permittee as filedWestlake Royal Roofing LLC
NPDES IDCOR901169
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedNovember 9, 2012
Expiration dateJune 30, 2017
AddressHenderson, CO 80640
Receiving waterDetention Pond - North Fork of South Platte River
SubwatershedCity of Thornton-South Platte River (HUC 101900030402)
SIC3272 – Concrete Products

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

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
Solids, total suspended370
Iron, total [as Fe]340
pH040

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COR901169.

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 COR901169.

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 COR901169 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act NPDES permit COR901169 for WESTLAKE ROYAL ROOFING - DENVER in Henderson, CO, held by Westlake Royal Roofing LLC, which discharges to Detention Pond - North Fork Of South Platte River under an industrial stormwater program. The permit is listed as administratively continued, with a minor discharger class, zero pollutants under a numeric limit, and zero pollutants with an effluent exceedance.