Clean Water Act discharge permit · NPDES COG588067
GRIZZLY CREEK REST AREA WWTF, Garfield County, CO: NPDES COG588067 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 13Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
GRIZZLY CREEK REST AREA WWTF, held by Colorado Department of Transportation, holds NPDES permit COG588067, which discharges to Colorado River. EPA’s file records it issued July 22, 2005 and expiring May 31, 2010. 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 | GRIZZLY CREEK REST AREA WWTF |
|---|---|
| Permittee as filed | Colorado Department of Transportation |
| NPDES ID | COG588067 |
| 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 | July 22, 2005 |
| Expiration date | May 31, 2010 |
| Address | Garfield County, CO |
| Receiving water | COLORADO RIVER |
| Subwatershed | Glenwood Canyon (HUC 140100011604) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 13Pollutants on file
- 13Under a numeric limit
- 12With a violation of any kind
- 3With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 8 | 16 | 13 | June 30, 2021 | 208% over the limit |
| Solids, total suspended | 4 | 7 | 1 | May 31, 2016 | 7% over the limit |
| pH | 4 | 3 | 1 | November 30, 2005 | |
| BOD, 5-day, 20 deg. C | 6 | 10 | 0 | ||
| Flow, in conduit or thru treatment plant | 6 | 6 | 0 | ||
| Chlorine, total residual | 3 | 2 | 0 | ||
| E. coli | 2 | 2 | 0 | ||
| Coliform, fecal general | 2 | 2 | 0 | ||
| Oil and grease | 1 | 1 | 0 | ||
| BOD, 5-day, percent removal | 1 | 1 | 0 | ||
| Solids, suspended percent removal | 1 | 1 | 0 | ||
| Oil and grease visual | 1 | 1 | 0 | ||
| Solids, total dissolved | 4 | 0 | 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 COG588067.
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 COG588067 there.
Nearby on the register
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- Every permit record in Garfield County, A to Z
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- Every permit record in Colorado, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.