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Clean Water Act discharge permit · NPDES COR427026

EAST CREEK FARM SUBDIVISION - HB, Thornton, CO: NPDES COR427026 discharge permit, effluent exceedances, inspections, penalties

EAST CREEK FARM SUBDIVISION - HB, held by Lennar Colorado LLC, holds NPDES permit COR427026. EPA’s file records it issued March 20, 2025 and expiring March 31, 2029. 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 EAST CREEK FARM SUBDIVISION - HB: its NPDES ID, its permit type and status, its dates, its address in Thornton, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR427026.

Identity

Facility as filedEAST CREEK FARM SUBDIVISION - HB
Permittee as filedLennar Colorado LLC
NPDES IDCOR427026
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMarch 20, 2025
Expiration dateMarch 31, 2029
Issuing agencySTA
AddressThornton, CO 80602
SubwatershedLower Big Dry Creek (HUC 101900030408)
SIC1521 – Single-Family Housing 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

EPA’s limits and effluent violation files hold no pollutant row for NPDES COR427026.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES COR427026.

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.

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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 COR427026 there.

Nearby on the register

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

What this page shows

Adams County's 463 general permit coverages show 13.0% with a violation on file, and EAST CREEK FARM SUBDIVISION - HB is among them. Counting this coverage, 53.8% of those 463 coverages were issued before it. The Lower Big Dry Creek subwatershed holds 41 NPDES permits.