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Clean Water Act discharge permit · NPDES COG081536

38TH CBC DEWATER, Aurora, CO: NPDES COG081536 discharge permit, effluent exceedances, inspections, penalties

38TH CBC DEWATER, held by Ames Construction Inc, holds NPDES permit COG081536, which discharges to Unnamed Tributary - First Creek. EPA’s file records it issued June 24, 2026 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.

What the register holds for 38TH CBC DEWATER: its NPDES ID, its permit type and status, its dates, its address in Aurora, Colorado, its receiving water, and 14 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COG081536.

Identity

Facility as filed38TH CBC DEWATER
Permittee as filedAmes Construction Inc
NPDES IDCOG081536
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJune 24, 2026
Expiration dateMay 31, 2028
AddressAurora, CO 80019
Receiving waterUnnamed tributary - First 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.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH400
Solids, total suspended400
Arsenic, total recoverable400
Iron, total recoverable400
Iron, dissolved [as Fe]400
Manganese, dissolved [as Mn]400
Selenium, potentially dissolvd400
Uranium, total400
Flow, in conduit or thru treatment plant400
Phosphorus, total [as P]200
Oil and grease200
Flow, total200
Duration of discharge200
Oil and grease visual200

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COG081536.

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 COG081536.

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 COG081536 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 COG081536 for 38TH CBC DEWATER in Aurora, CO, held by Ames Construction Inc, which discharges to Unnamed Tributary - First Creek. The page lists 14 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.