Clean Water Act discharge permit · NPDES COG603032
DENVER ZOO PARKING GARAGE, Denver, CO: NPDES COG603032 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
DENVER ZOO PARKING GARAGE, held by Denver Zoological Foundation, holds NPDES permit COG603032, which discharges to South Platte River. EPA’s file records it issued September 27, 2007 and expiring December 31, 2012. 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.
Identity
| Facility as filed | DENVER ZOO PARKING GARAGE |
|---|---|
| Permittee as filed | Denver Zoological Foundation |
| NPDES ID | COG603032 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 27, 2007 |
| Expiration date | December 31, 2012 |
| Address | Denver, CO 80205 |
| Receiving water | South Platte River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Cherry Creek-South Platte River (HUC 101900030304) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 6Pollutants on file
- 5Under a numeric limit
- 6With a violation of any kind
- 1With an effluent exceedance
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 measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 2 | 6 | 1 | September 30, 2018 | 42% over the limit |
| Arsenic, total recoverable | 0 | 5 | 0 | ||
| pH | 2 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| Oil and grease | 1 | 2 | 0 | ||
| Oil and grease visual | 1 | 2 | 0 |
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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES COG603032.
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, COG603032.
Start the watch
- 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 COG603032 there.
Nearby on the register
- Discharge permits in Denver
- Every permit record in Denver, A to Z
- Discharge permits in Colorado
- Every permit record in Colorado, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.