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Clean Water Act discharge permit · NPDES COR431910

STERLING RANCH 7A, Littleton, CO: NPDES COR431910 discharge permit, effluent exceedances, inspections, penalties

STERLING RANCH 7A, held by Tri Pointe Homes Holdings, Inc., holds NPDES permit COR431910. EPA’s file records it issued September 2, 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 STERLING RANCH 7A: its NPDES ID, its permit type and status, its dates, its address in Littleton, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR431910.

Identity

Facility as filedSTERLING RANCH 7A
Permittee as filedTri Pointe Homes Holdings, Inc.
NPDES IDCOR431910
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedSeptember 2, 2026
Expiration dateMarch 31, 2029
Issuing agencySTA
AddressLittleton, CO 80125

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

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES COR431910.

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 COR431910.

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 COR431910 there.

Nearby on the register

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

What this page shows

STERLING RANCH 7A sits among 11 general permit coverages in Littleton, and 0.0% of those 11 have a violation on file. Littleton has 11 general permit coverages on EPA's NPDES register, including this permit, and 81.8% of them were issued before this permit.