Velarion Records
Follow this permit Velarion Records emails you this permit’s record, cited to the public filing, and tells you when the register changes it. Free.
We’ll email you a link to confirm. The continuous daily watch on every change is the paid alert. Unsubscribe any time.
Also free: The Pay Desk, the weekly executive pay briefing.

Clean Water Act discharge permit · NPDES COR427604

3850 BLAKE ST. MULTIFAMILY, Denver, CO: NPDES COR427604 discharge permit, effluent exceedances, inspections, penalties

3850 BLAKE ST. MULTIFAMILY, held by The Weitz Company, holds NPDES permit COR427604. EPA’s file records it issued May 21, 2025 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 3850 BLAKE ST. MULTIFAMILY: its NPDES ID, its permit type and status, its dates, its address in Denver, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR427604.

Identity

Facility as filed3850 BLAKE ST. MULTIFAMILY
Permittee as filedThe Weitz Company
NPDES IDCOR427604
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMay 21, 2025
Expiration dateMarch 31, 2029
AddressDenver, CO 80205
Receiving water impaired303(D) Listed
SubwatershedCherry Creek-South Platte River (HUC 101900030304)

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 COR427604.

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 COR427604.

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, COR427604.

Start the watch

How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

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 COR427604 there.

Nearby on the register

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

What this page shows

The 3850 BLAKE ST. MULTIFAMILY permit, held by The Weitz Company, is one of 301 general permit coverages in Denver County, Colorado, and 19.6% of those coverages have a violation on file. It sits among 219 NPDES permits in the Cherry Creek-South Platte River subwatershed, and 58.5% of the 301 Denver County coverages were issued earlier than this one. The permit has no pollutants under a numeric limit and no pollutants with an effluent exceedance.