Clean Water Act discharge permit · NPDES CO0024562
CARLTON TUNNEL PORTAL SITE, Teller County, CO: NPDES CO0024562 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 20Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
CARLTON TUNNEL PORTAL SITE, held by Cripple Creek and Victor Gold Mining Co, holds NPDES permit CO0024562, which discharges to Fourmile Creek. EPA’s file records it issued September 26, 2006 and expiring October 31, 2011. 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 | CARLTON TUNNEL PORTAL SITE |
|---|---|
| Permittee as filed | Cripple Creek and Victor Gold Mining Co |
| NPDES ID | CO0024562 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 26, 2006 |
| Expiration date | October 31, 2011 |
| Address | Teller County, CO 80860 |
| Receiving water | FOURMILE CREEK |
| Subwatershed | Cripple Creek-Four Mile Creek (HUC 110200020203) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 24Pollutants on file
- 20Under a numeric limit
- 22With 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 |
|---|---|---|---|---|---|
| Zinc, potentially dissolved | 16 | 18 | 14 | June 30, 1999 | 269% over the limit |
| Flow, in conduit or thru treatment plant | 16 | 39 | 13 | August 31, 1999 | 16% over the limit |
| Solids, total suspended | 16 | 33 | 6 | May 31, 1996 | 23% over the limit |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | 65 | 161 | 5 | September 30, 2005 | 32% over the limit |
| Fluoride | 0 | 2 | 2 | August 31, 2023 | 7% over the limit |
| Toxicity [chronic], Ceriodaphnia dubia | 32 | 174 | 0 | ||
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 32 | 174 | 0 | ||
| %Effect Static Renewal 7Day Chronic Pimephales promelas | 65 | 152 | 0 | ||
| Cyanide, weak acid, dissociable | 0 | 69 | 0 | ||
| Selenium, potentially dissolvd | 0 | 60 | 0 | ||
| pH | 16 | 31 | 0 | ||
| Iron, total recoverable | 60 | 25 | 0 | ||
| Manganese, dissolved [as Mn] | 36 | 25 | 0 | ||
| Zinc, dissolved [as Zn] | 146 | 21 | 0 | ||
| Oil and grease | 8 | 12 | 0 | ||
| Oil and grease visual | 8 | 12 | 0 | ||
| Copper, potentially dissolved | 16 | 6 | 0 | ||
| Cadmium, dissolved [as Cd] | 20 | 4 | 0 | ||
| Selenium, dissolved [as Se] | 20 | 4 | 0 | ||
| Silver, potentially dissolved | 16 | 2 | 0 | ||
| Lead, potentially dissolvd | 16 | 2 | 0 | ||
| Oil & Grease | 0 | 1 | 0 | ||
| Mercury, total [as Hg] | 20 | 0 | 0 | ||
| Chromium, hexavalent dissolved [as Cr] | 16 | 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 CO0024562.
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.
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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 CO0024562 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.