Clean Water Act discharge permit · NPDES CO0000003
THROIN RESOUCES LLC, Ouray, CO: NPDES CO0000003 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 27Pollutants under a numeric limit
- 11Pollutants with an effluent exceedance
THROIN RESOUCES LLC, held by Thorin Resources LLC, holds NPDES permit CO0000003, which discharges to Sneffles Creek. EPA’s file records it issued August 1, 2013 and expiring August 31, 2018. 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 | THROIN RESOUCES LLC |
|---|---|
| Permittee as filed | Thorin Resources LLC |
| NPDES ID | CO0000003 |
| 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 | August 1, 2013 |
| Expiration date | August 31, 2018 |
| Address | Ouray, CO 81427 |
| Receiving water | Sneffles Creek |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Canyon Creek (HUC 140200060202) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 27Pollutants on file
- 27Under a numeric limit
- 25With a violation of any kind
- 11With 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 |
|---|---|---|---|---|---|
| Zinc, potentially dissolved | 8 | 69 | 53 | January 31, 2026 | 438% over the limit |
| Lead, potentially dissolvd | 10 | 50 | 34 | June 30, 2025 | 19,621% over the limit |
| Cadmium, potentially dissolvd | 10 | 40 | 24 | July 31, 2021 | 424% over the limit |
| Silver, potentially dissolved | 6 | 23 | 7 | July 31, 2026 | 713% over the limit |
| Manganese, potentially dissolvd | 10 | 24 | 5 | May 31, 2015 | 41% over the limit |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | 6 | 11 | 5 | December 31, 2020 | 79% over the limit |
| Solids, total suspended | 4 | 21 | 3 | May 31, 2021 | 230% over the limit |
| Iron, total recoverable | 4 | 12 | 3 | July 31, 2015 | 65% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 32 | 1 | April 30, 2023 | 3% over the limit |
| pH | 4 | 11 | 1 | October 31, 2021 | |
| Cyanide, weak acid, dissociable | 2 | 10 | 1 | February 28, 2023 | 73% over the limit |
| Lead, total [as Pb] | 4 | 298 | 0 | ||
| Temperature, water deg. centigrade | 4 | 30 | 0 | ||
| Mercury, total [as Hg] | 4 | 18 | 0 | ||
| Copper, potentially dissolved | 10 | 16 | 0 | ||
| Cadmium, total [as Cd] | 4 | 10 | 0 | ||
| Copper, total [as Cu] | 4 | 10 | 0 | ||
| Zinc, total [as Zn] | 4 | 10 | 0 | ||
| Static Renewal 7 Day Chronic Pimephales promelas | 6 | 6 | 0 | ||
| Mercury, total [low level] | 3 | 6 | 0 | ||
| Solids, total dissolved | 6 | 5 | 0 | ||
| Arsenic, total recoverable | 2 | 5 | 0 | ||
| Oil and grease | 2 | 5 | 0 | ||
| Chromium, trivalent total recoverable | 2 | 5 | 0 | ||
| Oil and grease visual | 2 | 5 | 0 | ||
| Nickel, potentially dissolvd | 2 | 0 | 0 | ||
| Selenium, potentially dissolvd | 2 | 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 CO0000003.
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.
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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 CO0000003 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.