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Clean Water Act discharge permit · NPDES COR427240

CITY OF ARVADA NORTH TRUNK SEWER IMPROVEMENTS, Arvada, CO: NPDES COR427240 discharge permit, effluent exceedances, inspections, penalties

CITY OF ARVADA NORTH TRUNK SEWER IMPROVEMENTS, held by BT Construction, Inc., holds NPDES permit COR427240. EPA’s file records it issued April 17, 2025 and expiring March 31, 2029. 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 CITY OF ARVADA NORTH TRUNK SEWER IMPROVEMENTS: its NPDES ID, its permit type and status, its dates, its address in Arvada, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR427240.

Identity

Facility as filedCITY OF ARVADA NORTH TRUNK SEWER IMPROVEMENTS
Permittee as filedBT Construction, Inc.
NPDES IDCOR427240
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedApril 17, 2025
Expiration dateMarch 31, 2029
AddressArvada, CO 80003
SubwatershedOutlet Clear Creek (HUC 101900040404)

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 COR427240.

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 COR427240.

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

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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 COR427240 there.

Nearby on the register

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

What this page shows

The CITY OF ARVADA NORTH TRUNK SEWER IMPROVEMENTS permit, held by BT Construction, Inc., is one of 245 general permit coverages in Jefferson County, Colorado, and sits among 69 NPDES permits in the Outlet Clear Creek subwatershed. Of the 244 general permit coverages in Jefferson County, 59.0% were issued earlier than this one, and 21.2% of the 245 county coverages have a violation on file. This permit has no pollutants under a numeric limit and no pollutants with an effluent exceedance.