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Clean Water Act discharge permit · NPDES COR901447

HAMMER ENTERPRISES, Evergreen, CO: NPDES COR901447 discharge permit, effluent exceedances, inspections, penalties

HAMMER ENTERPRISES, held by Hammer Enterprises, holds NPDES permit COR901447, which discharges to Unnamed Ditches - Troublesome Creek. EPA’s file records it issued May 1, 2018 and expiring December 31, 2022. 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 filedHAMMER ENTERPRISES
Permittee as filedHammer Enterprises
NPDES IDCOR901447
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 1, 2018
Expiration dateDecember 31, 2022
AddressEvergreen, CO 80439
Receiving waterunnamed ditches - Troublesome Creek
SubwatershedTroublesome Creek-Bear Creek (HUC 101900020805)
SIC2833 – Medicinals And Botanicals
Other EPA IDs (FRS)RCRA handler COD073387961; ICIS-AIR source CO0000000805902014

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

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
Perfluorooctanoic acid (PFOA)0160
Perfluorobutanoic acid (PFBA)0160
Perfluorooctanesulfonamide (PFOSA)0160
Perfluoropentanoic acid (PFPeA)0160
Perfluorohexanoic acid (PFHxA)0160
Perfluoroheptanoic acid (PFHpA)0160
Perfluorononanoic acid (PFNA)0160
Perfluorodecanoic acid (PFDA)0160
Perfluoroundecanoic acid (PFUnA)0160
Perfluorododecanoic acid (PFDoA)0160
Perfluorotridecanoic acid (PFTrDA)0160
Perfluorotetradecanoic acid (PFTeDA)0160
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)0160
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)0160
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)0160
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)0160
Perfluorobutanesulfonic acid (PFBS)0160
Perfluorodecanesulfonic acid (PFDS)0160
Perfluoroheptanesulfonic acid (PFHpS)0160
Perfluorohexanesulfonic acid (PFHxS)0160
Perfluorooctanesulfonic acid (PFOS)0160
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)0160
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)0160
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)0160
Perfluoropentanesulfonic acid (PFPeS)0160
Perfluorononanesulfonic acid (PFNS)0160
Hexafluoropropylene oxide dimer acid (HFPO-DA)0160
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)0160
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)0160
Perfluorododecanesulfonic acid (PFDoS)0160
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)0160
N-methyl perfluorooctanesulfonamide (NMeFOSA)0160
N-ethyl perfluorooctanesulfonamide (NEtFOSA)0160
PFAS Sum0160
3-Perfluoropropyl propanoic acid (3:3 FTCA)0160
Perfluoro-3-methoxypropanoic acid (PFMPA)0160
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)0160
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)0160
3-Perfluoroheptyl propanoic acid (7:3 FTCA)0160
Perfluoro-4-methoxybutanoic acid (PFMBA)0160
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)0160

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COR901447.

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 COR901447.

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, COR901447.

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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 COR901447 there.

Nearby on the register

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

What this page shows

Among the 32 storm water industrial permits in Jefferson County, this one, filed as HAMMER ENTERPRISES, sits in the 78.1% that were issued earlier than it was, and it is one of 10 NPDES permits in the Troublesome Creek-Bear Creek subwatershed. The permit records no pollutants under a numeric limit and no effluent exceedances, both counted as 0.