Clean Water Act discharge permit · NPDES COG641008
SILVERTON TOWN OF, Silverton, CO: NPDES COG641008 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
SILVERTON TOWN OF, held by Silverton Town of, holds NPDES permit COG641008, which discharges to Animas River. EPA’s file records it issued December 8, 2005 and expiring October 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 | SILVERTON TOWN OF |
|---|---|
| Permittee as filed | Silverton Town of |
| NPDES ID | COG641008 |
| 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 | December 8, 2005 |
| Expiration date | October 31, 2010 |
| Address | Silverton, CO 81433 |
| Receiving water | ANIMAS RIVER |
| Subwatershed | Cunningham Creek-Animas River (HUC 140801040104) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 12Pollutants on file
- 12Under 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 |
|---|---|---|---|---|---|
| Chlorine, total residual | 2 | 8 | 2 | December 31, 2015 | 355% over the limit |
| Solids, total suspended | 2 | 6 | 2 | December 31, 2010 | 400% over the limit |
| pH | 24 | 7 | 1 | March 31, 2010 | |
| Copper, potentially dissolved | 2 | 4 | 0 | ||
| Iron, total recoverable | 2 | 2 | 0 | ||
| Aluminum, total recoverable | 2 | 2 | 0 | ||
| Zinc, potentially dissolved | 2 | 2 | 0 | ||
| Cadmium, potentially dissolvd | 2 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| Solids, total dissolved | 2 | 2 | 0 | ||
| Oil and grease | 1 | 1 | 0 | ||
| Oil and grease visual | 1 | 1 | 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 COG641008.
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 COG641008 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.