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Clean Water Act discharge permit · NPDES COR424721

MURPHY CREEK - FILING NO. 7, Aurora, CO: NPDES COR424721 discharge permit, effluent exceedances, inspections, penalties

MURPHY CREEK - FILING NO. 7, held by Risewell Homes, holds NPDES permit COR424721. EPA’s file records it issued July 26, 2024 and expiring March 31, 2029.

MURPHY CREEK - FILING NO. 7, Aurora, Colorado: Coverage under a general permit COR424721, held by Risewell Homes; Effective; issued July 26, 2024, term to March 31, 2029.

Other permits held by Risewell Homes

MURPHY CREEK - FILING NO. 7 among its neighbors

EPA’s permit file holds 64 discharge permits in the Coal Creek subwatershed (HUC 101900030202), COR424721 among them. Its county holds 449, 3 of them major permits; COR424721 is a minor permit.

Other permits in the Coal Creek subwatershed (HUC 101900030202)

What the register holds for MURPHY CREEK - FILING NO. 7: its NPDES ID, its permit type and status, its dates, its address in Aurora, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR424721.

Identity

Facility as filedMURPHY CREEK - FILING NO. 7
Permittee as filedRisewell Homes
NPDES IDCOR424721
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJuly 26, 2024
Expiration dateMarch 31, 2029
AddressAurora, CO 80018
SubwatershedCoal Creek (HUC 101900030202)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES COR424721.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES COR424721.

Inspections

EPA’s inspection file holds no inspection for NPDES COR424721.

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 COR424721.

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Nearby on the register

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

What this page shows

The MURPHY CREEK - FILING NO. 7 permit, held by Risewell Homes in Aurora, is one of 360 general permit coverages in Arapahoe County, and 10.8% of those coverages have a violation on file. It also falls among 64 NPDES permits in the Coal Creek subwatershed, and 26.7% of the county's 360 general permit coverages were issued earlier than this one. The permit records no pollutants under a numeric limit and no pollutants with an effluent exceedance, both counted as 0.