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Clean Water Act discharge permit · NPDES COR419016

AVANT RESIDENTIAL, Centennial, CO: NPDES COR419016 discharge permit, effluent exceedances, inspections, penalties

AVANT RESIDENTIAL, held by PCL Construction Services, Inc., holds NPDES permit COR419016. EPA’s file records it issued December 16, 2022 and expiring March 31, 2024. 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 AVANT RESIDENTIAL: its NPDES ID, its permit type and status, its dates, its address in Centennial, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR419016.

Identity

Facility as filedAVANT RESIDENTIAL
Permittee as filedPCL Construction Services, Inc.
NPDES IDCOR419016
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
IssuedDecember 16, 2022
Expiration dateMarch 31, 2024
Issuing agencySTA
AddressCentennial, CO 80111
SubwatershedLittle Dry Creek (HUC 101900020903)
SIC1542 – Nonresidential Construction

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 COR419016.

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 COR419016.

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, COR419016.

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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 COR419016 there.

Nearby on the register

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

What this page shows

AVANT RESIDENTIAL is one of 360 general permit coverages in Arapahoe County, where 10.8% of those coverages have a violation on file. The permit sits within the Little Dry Creek subwatershed, which holds 58 NPDES permits including this one, and 13.6% of the county's 360 coverages carry an earlier issue date than this permit. It has no pollutants under a numeric limit and no pollutants with an effluent exceedance, counts that are both zero.