Clean Water Act discharge permit · NPDES COR431557

NORTHSKYE, Erie, CO: NPDES COR431557 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

NORTHSKYE, held by Toll Bros., Inc., holds NPDES permit COR431557. EPA’s file records it issued July 24, 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 NORTHSKYE: its NPDES ID, its permit type and status, its dates, its address in Erie, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR431557.

Identity

Facility as filed	NORTHSKYE
Permittee as filed	Toll Bros., Inc.
NPDES ID	COR431557
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	July 24, 2026
Expiration date	March 31, 2029
Issuing agency	STA
Address	Erie, CO 80516
Subwatershed	Outlet Boulder Creek (HUC 101900050705)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

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 COR431557.

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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES COR431557.

Inspections

EPA’s inspection file holds no inspection for NPDES COR431557.

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 COR431557.

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, COR431557.

Start the watch

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 COR431557 there.

Nearby on the register

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

This public-records page covers Clean Water Act NPDES permit COR431557 for the NORTHSKYE facility in Erie, CO, held by Toll Bros., Inc., with an effective status, a coverage-under-a-general-permit type, and a minor discharger class. The facts list 0 pollutants on file, 0 under a numeric limit, and 0 with a violation of any kind, with the permit issued July 24, 2026 and expiring March 31, 2029.