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Clean Water Act discharge permit · NPDES COR428038

SUN VALLEY TOWNHOMES, Denver, CO: NPDES COR428038 discharge permit, effluent exceedances, inspections, penalties

SUN VALLEY TOWNHOMES, held by Haselden Construction, holds NPDES permit COR428038. EPA’s file records it issued July 21, 2025 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 SUN VALLEY TOWNHOMES: its NPDES ID, its permit type and status, its dates, its address in Denver, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR428038.

Identity

Facility as filedSUN VALLEY TOWNHOMES
Permittee as filedHaselden Construction
NPDES IDCOR428038
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJuly 21, 2025
Expiration dateMarch 31, 2029
AddressDenver, CO 80204
Receiving water impaired303(D) Listed
Subwatershed101900020904 (HUC 101900020904)

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 COR428038.

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 COR428038.

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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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 COR428038 there.

Nearby on the register

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

What this page shows

The SUN VALLEY TOWNHOMES permit is one of 301 general permit coverages in Denver County on EPA's NPDES register, and 19.6% of those coverages have a violation on file. Among the 192 NPDES permits in the 101900020904 subwatershed, this one is included, and of the 301 Denver County general permit coverages, 62.5% carry an earlier issue date than this permit. The permit itself has no pollutants under a numeric limit and no pollutants with an effluent exceedance.