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Clean Water Act discharge permit · NPDES COR431159

AMAN ASPEN, Aspen, CO: NPDES COR431159 discharge permit, effluent exceedances, inspections, penalties

AMAN ASPEN, held by The Whiting- Turner Contracting Company, holds NPDES permit COR431159. EPA’s file records it issued July 7, 2026 and expiring March 31, 2029.

AMAN ASPEN, Aspen, Colorado: Coverage under a general permit COR431159, held by The Whiting- Turner Contracting Company; Effective; issued July 7, 2026, term to March 31, 2029.

AMAN ASPEN among its neighbors

EPA’s permit file holds 6 discharge permits in the Roaring Fork River above Aspen subwatershed (HUC 140100040106), COR431159 among them. Its county holds 80, 2 of them major permits; COR431159 is a minor permit.

Other permits in the Roaring Fork River above Aspen subwatershed (HUC 140100040106)

  • 1380 RIVERSIDE, Aspen: COG081498, minor permit, discharging to Salvation Ditch - Roaring Fork River, permit term to May 31, 2028
  • ASPEN CLUB, Aspen: COR423389, minor permit, permit term to March 31, 2029
  • ASPEN CONSOLIDATED SANITATION DISTRICT, Aspen: COL026387, minor permit, discharging to ROARING FORK RIVER, permit term to December 31, 2025
  • LIFT ONE LODGE, Aspen: COR428738, minor permit, permit term to March 31, 2029
  • LITTLE NELL WELL CITY WELL 4, Aspen: COG608003, minor permit, discharging to Roaring Fork River, permit term to May 31, 2025

What the register holds for AMAN ASPEN: its NPDES ID, its permit type and status, its dates, its address in Aspen, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR431159.

Identity

Facility as filedAMAN ASPEN
Permittee as filedThe Whiting- Turner Contracting Company
NPDES IDCOR431159
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJuly 7, 2026
Expiration dateMarch 31, 2029
AddressAspen, CO 81611
SubwatershedRoaring Fork River above Aspen (HUC 140100040106)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES COR431159.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES COR431159.

Inspections

EPA’s inspection file holds no inspection for NPDES COR431159.

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 COR431159.

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, COR431159.

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Nearby on the register

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

What this page shows

The AMAN ASPEN permit, NPDES ID COR431159, is one of 65 general permit coverages in Pitkin County, and 95.4% of those 65, this one included, carry an earlier issue date than this permit. Among the 6 NPDES permits in the Roaring Fork River above Aspen subwatershed, this one included, it stands alongside its peers, while 43.1% of the county's 65 general permit coverages have a violation on file, and this permit has none of its pollutants under a numeric limit or with an effluent exceedance.