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 COR420698

PT 20531 - REPLACEMENT OF 16-INCH STEEL NEAR W LITTLETON BLVD & S DATURA ST, Littleton, CO: NPDES COR420698 discharge permit, effluent exceedances, inspections, penalties

PT 20531 - REPLACEMENT OF 16-INCH STEEL NEAR W LITTLETON BLVD & S DATURA ST, held by Denver water, holds NPDES permit COR420698. EPA’s file records it issued June 30, 2023 and expiring March 31, 2024. 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 PT 20531 - REPLACEMENT OF 16-INCH STEEL NEAR W LITTLETON BLVD & S DATURA ST: 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 COR420698.

Identity

Facility as filedPT 20531 - REPLACEMENT OF 16-INCH STEEL NEAR W LITTLETON BLVD & S DATURA ST
Permittee as filedDenver water
NPDES IDCOR420698
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJune 30, 2023
Expiration dateMarch 31, 2024
Issuing agencySTA
AddressLittleton, CO 80120
Subwatershed101900020904 (HUC 101900020904)

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 COR420698.

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 COR420698.

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, COR420698.

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 COR420698 there.

Nearby on the register

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

What this page shows

Permit PT 20531 - REPLACEMENT OF 16-INCH STEEL NEAR W LITTLETON BLVD & S DATURA ST, a general permit coverage held by Denver water in Littleton, Arapahoe County, Colorado, is one of 360 general permit coverages in Arapahoe County, and 16.9% of those 360 were issued earlier than this one. Among the 192 NPDES permits in its subwatershed, 101900020904, this permit is listed alongside them, and across the county's 360 general permit coverages, 10.8% carry a violation on file. This permit records no pollutants under a numeric limit and no pollutants with an effluent exceedance.