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Clean Water Act discharge permit · NPDES COR900191

BOULDER MUNICIPAL AIRPORT, Boulder, CO: NPDES COR900191 discharge permit, effluent exceedances, inspections, penalties

BOULDER MUNICIPAL AIRPORT, held by Boulder City of, holds NPDES permit COR900191, which discharges to Boulder And Left Hand Ditch - Boulder And Whiteroc. EPA’s file records it issued May 18, 2012 and expiring June 30, 2017. 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 BOULDER MUNICIPAL AIRPORT: its NPDES ID, its permit type and status, its dates, its address in Boulder, Colorado, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR900191.

Identity

Facility as filedBOULDER MUNICIPAL AIRPORT
Permittee as filedBoulder City of
NPDES IDCOR900191
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
ProgramIndustrial stormwater
IssuedMay 18, 2012
Expiration dateJune 30, 2017
AddressBoulder, CO 80301
Receiving waterBoulder and Left Hand Ditch - Boulder and Whiteroc
SubwatershedCity of Boulder-Boulder Creek (HUC 101900050406)

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 COR900191.

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 COR900191.

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.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, COR900191.

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  • One watershed — $2,990/year
  • One state — $4,990/year
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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 COR900191 there.

Nearby on the register

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

What this page shows

BOULDER MUNICIPAL AIRPORT is one of 40 storm water industrial permits in Boulder County, and 25.0% of that group has a violation on file, while this permit has none of the records counted as zero, meaning no pollutants under a numeric limit and no pollutants with an effluent exceedance. The permit sits among 83 NPDES permits in the City of Boulder-Boulder Creek subwatershed, and 30.0% of the county's 40 storm water industrial permits were issued earlier than this one.