Clean Water Act discharge permit · NPDES COG074236
COTTONWOOD POND, Boulder, CO: NPDES COG074236 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
COTTONWOOD POND, held by US Army Corps of Engineers Omaha District, holds NPDES permit COG074236, which discharges to Boulder Creek. EPA’s file records it issued February 19, 2013 and expiring September 30, 2013. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | COTTONWOOD POND |
|---|---|
| Permittee as filed | US Army Corps of Engineers Omaha District |
| NPDES ID | COG074236 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | February 19, 2013 |
| Expiration date | September 30, 2013 |
| Address | Boulder, CO 80301 |
| Receiving water | Boulder Creek |
| Subwatershed | City of Boulder-Boulder Creek (HUC 101900050406) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 5Pollutants on file
- 5Under a numeric limit
- 5With 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 | 4 | 40 | 2 | August 31, 2013 | 42% over the limit |
| pH | 6 | 56 | 0 | ||
| Flow, in conduit or thru treatment plant | 6 | 43 | 0 | ||
| Oil and grease | 3 | 28 | 0 | ||
| Oil and grease visual | 3 | 28 | 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 COG074236.
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, COG074236.
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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 COG074236 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.