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Clean Water Act discharge permit · NPDES COR431431

BNSF HUDSON PHASE 2 WASTE AREA, Hudson, CO: NPDES COR431431 discharge permit, effluent exceedances, inspections, penalties

BNSF HUDSON PHASE 2 WASTE AREA, held by SEMA Construction, holds NPDES permit COR431431. EPA’s file records it issued July 13, 2026 and expiring March 31, 2029. 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 BNSF HUDSON PHASE 2 WASTE AREA: its NPDES ID, its permit type and status, its dates, its address in Hudson, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR431431.

Identity

Facility as filedBNSF HUDSON PHASE 2 WASTE AREA
Permittee as filedSEMA Construction
NPDES IDCOR431431
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJuly 13, 2026
Expiration dateMarch 31, 2029
AddressHudson, CO 80642
SubwatershedSequine Gulch-Beebe Seep Canal (HUC 101900030503)

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 COR431431.

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 COR431431.

Inspections

EPA’s inspection file holds no inspection for NPDES COR431431.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES COR431431.

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 COR431431 there.

BNSF HUDSON PHASE 2 WASTE AREA, Hudson, Colorado: Coverage under a general permit COR431431, held by SEMA Construction; Effective; issued July 13, 2026, term to March 31, 2029.

Other permits held by SEMA Construction

BNSF HUDSON PHASE 2 WASTE AREA among its neighbors

EPA’s permit file holds 10 discharge permits in the Sequine Gulch-Beebe Seep Canal subwatershed (HUC 101900030503), COR431431 among them. Its county holds 780, 13 of them major permits; COR431431 is a minor permit.

Other permits in the Sequine Gulch-Beebe Seep Canal subwatershed (HUC 101900030503)

Nearby on the register

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

What this page shows

The BNSF HUDSON PHASE 2 WASTE AREA permit, issued July 13, 2026 to SEMA Construction, is one of 596 general permit coverages in Weld County, and 97.5% of the 595 others in the county carry an earlier issue date than this one. Among those 596 Weld County coverages, 21.3% have a violation on file, while this permit records none of the numeric-limit or effluent-exceedance pollutants.