Clean Water Act discharge permit · NPDES COG074431
ROCKY MOUNTAIN LIONS EYE INSTITUTE, Aurora, CO: NPDES COG074431 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
ROCKY MOUNTAIN LIONS EYE INSTITUTE, held by Mortenson Construction, holds NPDES permit COG074431, which discharges to Sand Creek. EPA’s file records it issued May 31, 2013 and expiring September 30, 2013. 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 | ROCKY MOUNTAIN LIONS EYE INSTITUTE |
|---|---|
| Permittee as filed | Mortenson Construction |
| NPDES ID | COG074431 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | May 31, 2013 |
| Expiration date | September 30, 2013 |
| Address | Aurora, CO 80045 |
| Receiving water | Sand Creek |
| Subwatershed | Sand Creek (HUC 101900030204) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 9With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| pH | 4 | 16 | 0 | ||
| Solids, total suspended | 4 | 16 | 0 | ||
| Selenium, potentially dissolvd | 4 | 16 | 0 | ||
| Toluene | 4 | 16 | 0 | ||
| Benzene | 4 | 16 | 0 | ||
| Ethylbenzene | 4 | 16 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 14 | 0 | ||
| Oil and grease | 2 | 8 | 0 | ||
| Oil and grease visual | 2 | 8 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COG074431.
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 COG074431.
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
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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 COG074431 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.