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 COL040681

ARAPAHOE COUNTY WATER AND WASTEWATER AUTHORITY, Centennial, CO: NPDES COL040681 discharge permit, effluent exceedances, inspections, penalties

ARAPAHOE COUNTY WATER AND WASTEWATER AUTHORITY, held by Arapahoe County Water and Wastewater Authority, holds NPDES permit COL040681. EPA’s file records it issued January 1, 2021 and expiring December 31, 2025. 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 ARAPAHOE COUNTY WATER AND WASTEWATER AUTHORITY: its NPDES ID, its permit type and status, its dates, its address in Centennial, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COL040681.

Identity

Facility as filedARAPAHOE COUNTY WATER AND WASTEWATER AUTHORITY
Permittee as filedArapahoe County Water and Wastewater Authority
NPDES IDCOL040681
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeAssociated permit record
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramBiosolids
IssuedJanuary 1, 2021
Expiration dateDecember 31, 2025
AddressCentennial, CO 80111
SubwatershedCherry Creek Lake-Cherry Creek (HUC 101900030303)
Other EPA IDs (FRS)RCRA handler COR000200378

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES COL040681.

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 COL040681.

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, COL040681.

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 COL040681 there.

Nearby on the register

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

What this page shows

The ARAPAHOE COUNTY WATER AND WASTEWATER AUTHORITY permit, NPDES ID COL040681, is one of 6 biosolids permits in Arapahoe County, and 0.0% of those permits carry an earlier issue date than this one. Among the 6 biosolids permits in the county, 16.7% have a violation on file, while this permit has none recorded. The permit sits within a subwatershed that holds 70 NPDES permits, this one included.