Clean Water Act discharge permit · NPDES CO0048964
GOLDEN FACILITY, Golden, CO: NPDES CO0048964 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 38Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
GOLDEN FACILITY, held by Molson Coors USA LLC, holds NPDES permit CO0048964, which discharges to Clear Creek. EPA’s file records it issued June 29, 2018 and expiring July 31, 2023. 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 | GOLDEN FACILITY |
|---|---|
| Permittee as filed | Molson Coors USA LLC |
| NPDES ID | CO0048964 |
| 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 | June 29, 2018 |
| Expiration date | July 31, 2023 |
| Address | Golden, CO 80401 |
| Receiving water | Clear Creek |
| Subwatershed | Clear Creek Canyon (HUC 101900040402) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 38Pollutants on file
- 38Under a numeric limit
- 37With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 16 | 31 | 13 | May 31, 2022 | 167% over the limit |
| pH | 8 | 25 | 3 | June 30, 2025 | |
| Flow, in conduit or thru treatment plant | 10 | 26 | 2 | June 30, 2026 | 5% over the limit |
| Temperature, water deg. centigrade | 34 | 24 | 1 | January 31, 2025 | 5% over the limit |
| Static Renewal 7 Day Chronic Ceriodaphnia dubia | 12 | 14 | 0 | ||
| Static Renewal 7 Day Chronic Pimephales promelas | 12 | 13 | 0 | ||
| Oil and grease | 4 | 9 | 0 | ||
| Oil and grease visual | 4 | 9 | 0 | ||
| Magnesium, total recoverable | 8 | 6 | 0 | ||
| Sodium adsorption ratio | 16 | 4 | 0 | ||
| Calcium, total recoverable | 8 | 4 | 0 | ||
| Cooling Water Intake Velocity | 2 | 4 | 0 | ||
| Sodium, total recoverable | 8 | 3 | 0 | ||
| Arsenic, total recoverable | 4 | 3 | 0 | ||
| Sulfate | 4 | 3 | 0 | ||
| Bicarbonate ion- [as HCO3] | 8 | 2 | 0 | ||
| Chromium, hexavalent dissolved [as Cr] | 8 | 2 | 0 | ||
| Zinc, potentially dissolved | 8 | 2 | 0 | ||
| Silver, potentially dissolved | 8 | 2 | 0 | ||
| Copper, potentially dissolved | 8 | 2 | 0 | ||
| Cadmium, potentially dissolvd | 8 | 2 | 0 | ||
| Lead, potentially dissolvd | 8 | 2 | 0 | ||
| Manganese, potentially dissolvd | 8 | 2 | 0 | ||
| Nickel, potentially dissolvd | 8 | 2 | 0 | ||
| Selenium, potentially dissolvd | 8 | 2 | 0 | ||
| Arsenic, potentially dissolved | 7 | 1 | 0 | ||
| Conductivity | 4 | 1 | 0 | ||
| Chloride [as Cl] | 4 | 1 | 0 | ||
| Iron, total recoverable | 4 | 1 | 0 | ||
| Iron, dissolved [as Fe] | 4 | 1 | 0 | ||
| Manganese, dissolved [as Mn] | 4 | 1 | 0 | ||
| Nickel, total recoverable | 4 | 1 | 0 | ||
| Cadmium, total recoverable | 4 | 1 | 0 | ||
| Lead, total recoverable | 4 | 1 | 0 | ||
| Molybdenum, total recoverable | 4 | 1 | 0 | ||
| Chromium, trivalent, potentially dissolvd | 4 | 1 | 0 | ||
| Chromium, trivalent total recoverable | 4 | 1 | 0 | ||
| Mercury, total [low level] | 4 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 26, 2026 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| August 16, 2022 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| August 16, 2022 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
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 CO0048964 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.