Clean Water Act discharge permit · NPDES COR427060
ALTA FLATIRONS, Superior, CO: NPDES COR427060 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
ALTA FLATIRONS, held by Flatiron Builders, LLC, holds NPDES permit COR427060. EPA’s file records it issued April 8, 2025 and expiring March 31, 2029.
ALTA FLATIRONS, Superior, Colorado: Coverage under a general permit COR427060, held by Flatiron Builders, LLC; Effective; issued April 8, 2025, term to March 31, 2029.
ALTA FLATIRONS among its neighbors
EPA’s permit file holds 14 discharge permits in the Upper Coal Creek subwatershed (HUC 101900050602), COR427060 among them. Its county holds 355, 5 of them major permits; COR427060 is a minor permit.
Other permits in the Upper Coal Creek subwatershed (HUC 101900050602)
- 3 S MARSHALL ROAD HOTEL, Superior: COR427780, minor permit, permit term to March 31, 2029
- ARCOSA ESC BOULDER, Boulder: COG501573, minor permit, discharging to Coal Creek, permit term to September 30, 2014
- COAL CREEK AT 2ND AVENUE TO MCCASLIN BLVD, Superior: COR426313, minor permit, permit term to March 31, 2029
- COAL CREEK CROSSING, Boulder County: COG074056, minor permit, discharging to Coal Creek, permit term to September 30, 2013
- KITE ROUTE CROSSING, Superior: COR429210, minor permit, permit term to March 31, 2029
- NLR FLATIRONS CAMPUS CONTROL CENTER FACILITY, Arvada: COR10F09V, minor permit, permit term to February 16, 2027
- NLR FLATIRONS CAMPUS WATER SYSTEM PROJECT, Arvada: COR10F0CC, minor permit, permit term to February 16, 2027
- NLR FLATIRONS CAMPUS WATER SYSTEM PROJECT, Arvada: COR10F0CD, minor permit, permit term to February 16, 2027
- NLR FLATIRONS CAMPUS WATER SYSTEM PROJECT, Arvada: COR10F0CE, minor permit, permit term to February 16, 2027
- NLR-FLATIRONS CAMPUS 2 MW RESEARCH PV ARRAY, Arvada: COR10F0DJ, minor permit, permit term to February 16, 2027
What the register holds for ALTA FLATIRONS: its NPDES ID, its permit type and status, its dates, its address in Superior, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR427060.
Identity
| Facility as filed | ALTA FLATIRONS |
|---|---|
| Permittee as filed | Flatiron Builders, LLC |
| NPDES ID | COR427060 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | April 8, 2025 |
| Expiration date | March 31, 2029 |
| Address | Superior, CO 80027 |
| Subwatershed | Upper Coal Creek (HUC 101900050602) |
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES COR427060.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES COR427060.
Inspections
EPA’s inspection file holds no inspection for NPDES COR427060.
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 COR427060.
Watch this permit
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Nearby on the register
- Discharge permits in Superior
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- Discharge permits in Colorado
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.