Clean Water Act discharge permit · NPDES COG589115
DURANGO WEST METRO DIST #2 WWTF, La Plata County, CO: NPDES COG589115 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
DURANGO WEST METRO DIST #2 WWTF, held by Durango West Metro Dist #2, holds NPDES permit COG589115, which discharges to Lightner Creek. EPA’s file records it issued April 29, 2011 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 | DURANGO WEST METRO DIST #2 WWTF |
|---|---|
| Permittee as filed | Durango West Metro Dist #2 |
| NPDES ID | COG589115 |
| 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 | April 29, 2011 |
| Expiration date | September 30, 2013 |
| Address | La Plata County, CO 81301 |
| Receiving water | Lightner Creek |
| Subwatershed | Outlet Lightner Creek (HUC 140801040603) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 12Pollutants on file
- 11Under a numeric limit
- 12With a violation of any kind
- 5With 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] | 2 | 103 | 21 | December 31, 2022 | 124% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 251 | 11 | August 31, 2017 | 233% over the limit |
| E. coli | 2 | 91 | 11 | January 31, 2016 | 1,820% over the limit |
| BOD, 5-day, percent removal | 1 | 47 | 6 | August 31, 2017 | 2,053% over the limit |
| Solids, total suspended | 2 | 84 | 4 | August 31, 2017 | 87% over the limit |
| Flow, in conduit or thru treatment plant | 3 | 159 | 0 | ||
| pH | 2 | 80 | 0 | ||
| Chlorine, total residual | 2 | 80 | 0 | ||
| Plant capacity fact. percent of capacity | 0 | 78 | 0 | ||
| Oil and grease | 1 | 40 | 0 | ||
| Oil and grease visual | 1 | 40 | 0 | ||
| Solids, total dissolved | 2 | 38 | 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 COG589115.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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, COG589115.
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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 COG589115 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.