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Clean Water Act discharge permit · NPDES COR425687

THE AURORA HIGHLANDS OVERLOT SWMP GRADING - NORTH AREA B, Aurora, CO: NPDES COR425687 discharge permit, effluent exceedances, inspections, penalties

THE AURORA HIGHLANDS OVERLOT SWMP GRADING - NORTH AREA B, held by HEI Civil, holds NPDES permit COR425687. EPA’s file records it issued October 21, 2024 and expiring March 31, 2029. 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 THE AURORA HIGHLANDS OVERLOT SWMP GRADING - NORTH AREA B: its NPDES ID, its permit type and status, its dates, its address in Aurora, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR425687.

Identity

Facility as filedTHE AURORA HIGHLANDS OVERLOT SWMP GRADING - NORTH AREA B
Permittee as filedHEI Civil
NPDES IDCOR425687
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedOctober 21, 2024
Expiration dateMarch 31, 2029
AddressAurora, CO 80019
SubwatershedFirst Creek (HUC 101900030401)

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

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES COR425687.

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 COR425687.

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 COR425687 there.

Nearby on the register

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

What this page shows

The Aurora Highlands Overlot SWMP Grading - North Area B general permit coverage, held by HEI Civil, is one of 360 general permit coverages in Arapahoe County, with 10.8% of those coverages carrying a violation on file. It also falls among 131 NPDES permits in the First Creek subwatershed, and it has no pollutants under a numeric limit and no effluent exceedances on record.