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Clean Water Act discharge permit · NPDES COG604025

NATURAL GAS PIPELINE, Various Cities, CO: NPDES COG604025 discharge permit, effluent exceedances, inspections, penalties

NATURAL GAS PIPELINE, held by Public Service Company of Colorado, holds NPDES permit COG604025, which discharges to Various State Waters. EPA’s file records it issued May 22, 2008 and expiring December 31, 2012. 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.

Identity

Facility as filedNATURAL GAS PIPELINE
Permittee as filedPublic Service Company of Colorado
NPDES IDCOG604025
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMay 22, 2008
Expiration dateDecember 31, 2012
AddressVarious Cities, CO
Receiving waterVarious State Waters

Cited to the EPA ICIS-NPDES permit file (ECHO 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
Iron, dissolved [as Fe]022September 30, 201627% over the limit
pH011October 31, 2017

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 COG604025.

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 COG604025 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit COG604025 for the NATURAL GAS PIPELINE facility in Various Cities, CO, held by Public Service Company of Colorado and discharging to Various State Waters, with a status of administratively continued. The page lists 2 pollutants on file, 0 under a numeric limit, and 2 with an effluent exceedance.