Clean Water Act discharge permit · NPDES CO0039691
CASCADE VILLAGE WWTF, Durango, CO: NPDES CO0039691 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
CASCADE VILLAGE WWTF, held by Grizzly Peak Water Sales & Distribution LLC, holds NPDES permit CO0039691, which discharges to Cascade Creek. EPA’s file records it issued February 1, 2012 and expiring March 31, 2017. 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 | CASCADE VILLAGE WWTF |
|---|---|
| Permittee as filed | Grizzly Peak Water Sales & Distribution LLC |
| NPDES ID | CO0039691 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | February 1, 2012 |
| Expiration date | March 31, 2017 |
| Address | Durango, CO 81301 |
| Receiving water | CASCADE CREEK |
| Subwatershed | Headwaters Cascade Creek (HUC 140801040201) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 15Pollutants on file
- 12Under a numeric limit
- 15With a violation of any kind
- 8With 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] | 24 | 94 | 56 | March 31, 2026 | 1,244% over the limit |
| BOD, 5-day, 20 deg. C | 7 | 64 | 11 | August 31, 2006 | 117% over the limit |
| Coliform, fecal general | 0 | 11 | 7 | April 30, 2008 | 965% over the limit |
| Chlorine, total residual | 2 | 22 | 6 | April 30, 2008 | 733% over the limit |
| Solids, total suspended | 2 | 29 | 4 | June 30, 2013 | 99,999% over the limit |
| Nitrogen, inorganic total | 0 | 2 | 2 | March 31, 2026 | 49% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 59 | 1 | February 28, 2015 | 108% over the limit |
| BOD, 5-day, percent removal | 0 | 1 | 1 | October 31, 1999 | 120% over the limit |
| E. coli | 2 | 40 | 0 | ||
| Temperature, water deg. centigrade | 2 | 36 | 0 | ||
| pH | 2 | 36 | 0 | ||
| Oil and grease visual | 1 | 19 | 0 | ||
| Oil and grease | 1 | 18 | 0 | ||
| Plant capacity fact. percent of capacity | 2 | 16 | 0 | ||
| Solids, total dissolved | 1 | 15 | 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 CO0039691.
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 CO0039691 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.