Velarion Records

Clean Water Act discharge permit · NPDES COG073971

I-25 AND SANTA FE BRIDGES, Denver County, CO: NPDES COG073971 discharge permit, effluent exceedances, inspections, penalties

I-25 AND SANTA FE BRIDGES, held by Hamon Contractors Inc, holds NPDES permit COG073971, which discharges to South Platte River. EPA’s file records it issued February 10, 2012 and expiring September 30, 2013. 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.

Identity

Facility as filedI-25 AND SANTA FE BRIDGES
Permittee as filedHamon Contractors Inc
NPDES IDCOG073971
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedFebruary 10, 2012
Expiration dateSeptember 30, 2013
AddressDenver County, CO 80223
Receiving waterSouth Platte River
Receiving water impaired303(D) Listed
Subwatershed101900020904 (HUC 101900020904)
SIC1799 – Special Trade Contractors

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

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH220
Solids, total suspended220
Flow, in conduit or thru treatment plant220
Oil and grease110
Oil and grease visual110

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COG073971.

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 COG073971.

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 COG073971 there.

Nearby on the register

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

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