Clean Water Act discharge permit · NPDES UT0000051
KENNECOTT UTAH COPPER, LLC, Salt Lake City, UT: NPDES UT0000051 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 21Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
KENNECOTT UTAH COPPER, LLC holds NPDES permit UT0000051, which discharges to C-7 Ditch & Butterfield Creek. EPA’s file records it issued January 26, 2017 and expiring January 31, 2022. 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 | KENNECOTT UTAH COPPER, LLC |
|---|---|
| Permittee as filed | KENNECOTT UTAH COPPER, LLC |
| NPDES ID | UT0000051 |
| 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 | January 26, 2017 |
| Expiration date | January 31, 2022 |
| Issuing agency | DEPT OF ENVIRONMENTAL QUALITY WATER QUALITY |
| Address | Salt Lake City, UT 84044 |
| Receiving water | C-7 DITCH & BUTTERFIELD CREEK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Butterfield Creek (HUC 160202040103) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 22Pollutants on file
- 21Under a numeric limit
- 18With a violation of any kind
- 9With 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 | 34 | 34 | 26 | February 28, 2022 | 803% over the limit |
| Lead, total [as Pb] | 36 | 8 | 4 | December 31, 2023 | 317% over the limit |
| Copper, total [as Cu] | 34 | 7 | 3 | June 30, 2015 | 220% over the limit |
| Flow, in conduit or thru treatment plant | 24 | 7 | 3 | April 30, 2017 | 11,055% over the limit |
| Zinc, total [as Zn] | 36 | 6 | 2 | March 31, 2020 | 101% over the limit |
| Arsenic, total [as As] | 32 | 6 | 2 | March 31, 2004 | 61% over the limit |
| Cyanide, total [as CN] | 6 | 5 | 1 | January 31, 2022 | 74% over the limit |
| Floating solids, waste or visible foam-visual | 9 | 3 | 1 | February 28, 2015 | |
| Pass/Fail Static 96 Hr Acute Cyprinodon Variega | 4 | 1 | 1 | March 31, 2008 | |
| Selenium, total [as Se] | 26 | 10 | 0 | ||
| Cadmium, total [as Cd] | 36 | 4 | 0 | ||
| pH | 34 | 4 | 0 | ||
| Mercury, total [as Hg] | 30 | 4 | 0 | ||
| Solids, total dissolved | 20 | 4 | 0 | ||
| Oil and grease visual | 13 | 3 | 0 | ||
| Oil & Grease | 15 | 2 | 0 | ||
| Iron, total [as Fe] | 2 | 2 | 0 | ||
| Duration of discharge | 0 | 1 | 0 | ||
| Oil and grease, hexane extr method | 2 | 0 | 0 | ||
| Solids, total dissolved [TDS] | 2 | 0 | 0 | ||
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | 2 | 0 | 0 | ||
| Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | 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 UT0000051.
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 UT0000051 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.