Clean Water Act discharge permit · NPDES COR419193

HERON LAKES, Berthoud, CO: NPDES COR419193 discharge permit, effluent exceedances, inspections, penalties

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

HERON LAKES, held by Ridgeway Custom Homes, holds NPDES permit COR419193. EPA’s file records it issued January 10, 2023 and expiring March 31, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for HERON LAKES: its NPDES ID, its permit type and status, its dates, its address in Berthoud, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR419193.

Identity

Facility as filed	HERON LAKES
Permittee as filed	Ridgeway Custom Homes
NPDES ID	COR419193
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	January 10, 2023
Expiration date	March 31, 2024
Issuing agency	STA
Address	Berthoud, CO 80513
Subwatershed	Handy Reservoir-Little Thompson River (HUC 101900060503)
SIC	1629 – Heavy Construction

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same 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 COR419193.

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 COR419193.

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, COR419193.

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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 COR419193 there.

Nearby on the register

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

HERON LAKES, the Clean Water Act discharge permit for Berthoud, Colorado, is one of 322 general permit coverages in Larimer County, and 21.4% of that group has a violation on file. It sits within the Handy Reservoir-Little Thompson River subwatershed, which holds 28 NPDES permits including this one, and 28.9% of the county's 322 general permit coverages were issued earlier than this one. The permit records no pollutants under a numeric limit and no effluent exceedances, both counted as 0.