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Clean Water Act discharge permit · NPDES COR900440

BOULDER COUNTY HAZARDOUS MATERIALS MANAGEMENT FACILITY, Boulder, CO: NPDES COR900440 discharge permit, effluent exceedances, inspections, penalties

BOULDER COUNTY HAZARDOUS MATERIALS MANAGEMENT FACILITY, held by Boulder County, holds NPDES permit COR900440, which discharges to Unnamed Wetlands To The North - Leggett Owen Feede. EPA’s file records it issued May 21, 2012 and expiring June 30, 2017. 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 filedBOULDER COUNTY HAZARDOUS MATERIALS MANAGEMENT FACILITY
Permittee as filedBoulder County
NPDES IDCOR900440
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 21, 2012
Expiration dateJune 30, 2017
AddressBoulder, CO 80301
Receiving waterUnnamed wetlands to the north - Leggett Owen Feede
SubwatershedLower South Boulder Creek (HUC 101900050504)
SIC4953 – Refuse Systems

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
Solids, total suspended230
Iron, total [as Fe]220
Silver, potentially dissolved020
Cadmium, potentially dissolvd020
Lead, potentially dissolvd020
Mercury, total recoverable020
Magnesium, total [as Mg]210
Arsenic, total recoverable010
Selenium, total recoverable010
Perfluorooctanoic acid (PFOA)010
Perfluorobutanoic acid (PFBA)010
Perfluorooctanesulfonamide (PFOSA)010
Perfluoropentanoic acid (PFPeA)010
Perfluorohexanoic acid (PFHxA)010
Perfluoroheptanoic acid (PFHpA)010
Perfluorononanoic acid (PFNA)010
Perfluorodecanoic acid (PFDA)010
Perfluoroundecanoic acid (PFUnA)010
Perfluorododecanoic acid (PFDoA)010
Perfluorotridecanoic acid (PFTrDA)010
Perfluorotetradecanoic acid (PFTeDA)010
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)010
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)010
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)010
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)010
Perfluorobutanesulfonic acid (PFBS)010
Perfluorodecanesulfonic acid (PFDS)010
Perfluoroheptanesulfonic acid (PFHpS)010
Perfluorohexanesulfonic acid (PFHxS)010
Perfluorooctanesulfonic acid (PFOS)010
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)010
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)010
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)010
Perfluoropentanesulfonic acid (PFPeS)010
Perfluorononanesulfonic acid (PFNS)010
Hexafluoropropylene oxide dimer acid (HFPO-DA)010
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)010
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)010
Perfluorododecanesulfonic acid (PFDoS)010
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)010
N-methyl perfluorooctanesulfonamide (NMeFOSA)010
N-ethyl perfluorooctanesulfonamide (NEtFOSA)010
PFAS Sum010
3-Perfluoropropyl propanoic acid (3:3 FTCA)010
Perfluoro-3-methoxypropanoic acid (PFMPA)010
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)010
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)010
3-Perfluoroheptyl propanoic acid (7:3 FTCA)010
Perfluoro-4-methoxybutanoic acid (PFMBA)010
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)010
Nitrogen, ammonia total [as N]200
Cyanide, total [as CN]200
Arsenic, total [as As]200
Cadmium, total [as Cd]200
Lead, total [as Pb]200
Silver, total [as Ag]200
Selenium, total [as Se]200
Mercury, total [as Hg]200
Chemical Oxygen Demand [COD]200

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COR900440.

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 COR900440.

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 COR900440 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit COR900440, held by Boulder County for the Boulder County Hazardous Materials Management Facility in Boulder, CO, which discharges to unnamed wetlands to the north and falls within the Lower South Boulder Creek subwatershed (HUC 101900050504). The permit is administratively continued, with a minor discharger class, an industrial stormwater program, and zero pollutants under a numeric limit or with an effluent exceedance.