Velarion Records

Clean Water Act discharge permit · NPDES COG317228

DENVER FIRE STATION #40, Denver, CO: NPDES COG317228 discharge permit, effluent exceedances, inspections, penalties

DENVER FIRE STATION #40, held by Mark Young Construction LLC, holds NPDES permit COG317228, which discharges to First Creek. EPA’s file records it issued October 16, 2025 and expiring May 31, 2028. 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 filedDENVER FIRE STATION #40
Permittee as filedMark Young Construction LLC
NPDES IDCOG317228
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedOctober 16, 2025
Expiration dateMay 31, 2028
AddressDenver, CO 80239
Receiving waterFirst Creek
SubwatershedFirst Creek (HUC 101900030401)

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; the 60 with the most exceedances of 114 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Selenium, potentially dissolvd662June 30, 202624% over the limit
Lead, potentially dissolvd640
Flow, in conduit or thru treatment plant440
pH240
Solids, total suspended240
Phosphorus, total [as P]240
Iron, total recoverable520
Oil and grease120
Flow, total120
Oil and grease visual120
Arsenic, total recoverable400
Selenium, total recoverable400
Thallium, total recoverable400
Beryllium, total recoverable [as Be]400
Barium, total recoverable400
Iron, dissolved [as Fe]400
Manganese, dissolved [as Mn]400
Nickel, total recoverable400
Silver total recoverable400
Zinc, total recoverable400
Aluminum, total recoverable400
Cadmium, total recoverable400
Lead, total recoverable400
Copper, total recoverable400
Molybdenum, total recoverable400
Chromium, hexavalent dissolved [as Cr]400
Antimony, total recoverable400
Zinc, potentially dissolved400
Silver, potentially dissolved400
Copper, potentially dissolved400
Arsenic, potentially dissolved400
Cadmium, potentially dissolvd400
Chromium, trivalent, potentially dissolvd400
Manganese, potentially dissolvd400
Nickel, potentially dissolvd400
Thallium, potentially dissolvd400
Uranium, potentially dissolvd400
Chromium, trivalent total recoverable400
Uranium, total400
Mercury, total [as Hg]400
Chromium, total recoverable200
Total phenols200
Carbon tetrachloride200
1,2-Dichloroethane200
Bromoform200
Chloroform200
Toluene200
Benzene200
Acenaphthene200
Acrolein200
Anthracene200
Benzo[k]fluoranthene200
Benzo[a]pyrene200
Bis[2-chloroethyl] ether200
Bis[2-chloroisopropyl] ether200
Butyl benzyl phthalate200
Chlorobenzene200
Chlorodibromomethane200
Chrysene200
Diethyl phthalate200

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 COG317228.

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 COG317228 there.

Nearby on the register

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

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