Clean Water Act discharge permit · NPDES COR423100

CASTLE PINES VILLAGE FILING 37, Castle Rock, CO: NPDES COR423100 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

CASTLE PINES VILLAGE FILING 37, held by Passero Signature Builders, Inc., holds NPDES permit COR423100. EPA’s file records it issued March 18, 2024 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 CASTLE PINES VILLAGE FILING 37: its NPDES ID, its permit type and status, its dates, its address in Castle Rock, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR423100.

Identity

Facility as filed	CASTLE PINES VILLAGE FILING 37
Permittee as filed	Passero Signature Builders, Inc.
NPDES ID	COR423100
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	March 18, 2024
Expiration date	March 31, 2029
Address	Castle Rock, CO 80108
Subwatershed	Lower East Plum Creek (HUC 101900020504)

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 COR423100.

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 COR423100.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

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, COR423100.

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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 COR423100 there.

Nearby on the register

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

The permit held by Passero Signature Builders, Inc. for CASTLE PINES VILLAGE FILING 37 in Castle Rock, Colorado, is one of 289 general permit coverages in Douglas County, where 12.5% of those coverages have a violation on file. Among all 289 coverages in the county, this permit, which was issued on March 18, 2024, is older than 28.0% of them. The permit shows 0 pollutants with a numeric limit and 0 pollutants with an effluent exceedance.