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Clean Water Act discharge permit · NPDES COG081517

6400 EAST TRIBUTARY AT PAINTBRUSH PARK PHASES 1 AND 2, Castle Rock, CO: NPDES COG081517 discharge permit, effluent exceedances, inspections, penalties

6400 EAST TRIBUTARY AT PAINTBRUSH PARK PHASES 1 AND 2, held by 53 Corporation LLC, holds NPDES permit COG081517, which discharges to Unnamed Tributary - East Plum Creek. EPA’s file records it issued May 21, 2026 and expiring May 31, 2028. 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 6400 EAST TRIBUTARY AT PAINTBRUSH PARK PHASES 1 AND 2: its NPDES ID, its permit type and status, its dates, its address in Castle Rock, Colorado, its receiving water, and 7 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COG081517.

Identity

Facility as filed6400 EAST TRIBUTARY AT PAINTBRUSH PARK PHASES 1 AND 2
Permittee as filed53 Corporation LLC
NPDES IDCOG081517
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMay 21, 2026
Expiration dateMay 31, 2028
AddressCastle Rock, CO 80109
Receiving waterUnnamed Tributary - East Plum Creek
SubwatershedLower East Plum Creek (HUC 101900020504)

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

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH400
Solids, total suspended400
Flow, in conduit or thru treatment plant400
Oil and grease200
Flow, total200
Duration of discharge200
Oil and grease visual200

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COG081517.

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 COG081517.

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 COG081517 there.

Nearby on the register

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

What this page shows

The page covers the NPDES COG081517 discharge permit for 6400 EAST TRIBUTARY AT PAINTBRUSH PARK PHASES 1 AND 2 in Castle Rock, CO, held by 53 Corporation LLC. It lists the permit as Effective with a Minor Discharger class 7 status, issued May 21, 2026, and expiring May 31, 2028. The register notes 7 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.