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Clean Water Act discharge permit · NPDES COR425271

AMZ IXD BJC1, Aurora, CO: NPDES COR425271 discharge permit, effluent exceedances, inspections, penalties

AMZ IXD BJC1, held by Graycor Construction Co., holds NPDES permit COR425271. EPA’s file records it issued September 12, 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 AMZ IXD BJC1: 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 COR425271.

Identity

Facility as filedAMZ IXD BJC1
Permittee as filedGraycor Construction Co.
NPDES IDCOR425271
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedSeptember 12, 2024
Expiration dateMarch 31, 2029
AddressAurora, CO 80019
SubwatershedThird Creek (HUC 101900030404)

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 COR425271.

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 COR425271.

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 COR425271 there.

Nearby on the register

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

What this page shows

The AMZ IXD BJC1 permit, filed by Graycor Construction Co. in Aurora, Adams County, Colorado, is one of 463 general permit coverages in Adams County on EPA's NPDES register, and it is also among 49 NPDES permits in the Third Creek subwatershed. Among the Adams County coverages, 13.0% have a violation on file, and this permit records no pollutants under a numeric limit and no pollutants with an effluent exceedance.