Clean Water Act discharge permit · NPDES SD0025933
HOMESTAKE MINING COMPANY - OPEN CUT, Central City, SD: NPDES SD0025933 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 31Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
HOMESTAKE MINING COMPANY - OPEN CUT, held by HOMESTAKE MINING CO - OPEN CUT, holds NPDES permit SD0025933, which discharges to Gold Run, Deadwood, Grizzly Creek. EPA’s file records it issued March 18, 2004 and expiring March 31, 2009. 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 | HOMESTAKE MINING COMPANY - OPEN CUT |
|---|---|
| Permittee as filed | HOMESTAKE MINING CO - OPEN CUT |
| NPDES ID | SD0025933 |
| 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 | March 18, 2004 |
| Expiration date | March 31, 2009 |
| Issuing agency | SD DENR |
| Address | Central City, SD 57754 |
| Receiving water | GOLD RUN, DEADWOOD, GRIZZLY CREEK |
| Subwatershed | Upper Whitewood Creek (HUC 101202020207) |
| Other EPA IDs (FRS) | RCRA handler SDD041243833 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 32Pollutants on file
- 31Under a numeric limit
- 26With 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 | 32 | 8 | 6 | April 30, 2005 | 720% over the limit |
| Selenium, total recoverable | 32 | 6 | 4 | October 31, 2006 | 178% over the limit |
| Solids, total dissolved | 32 | 6 | 4 | October 31, 2006 | 100% over the limit |
| pH | 32 | 4 | 2 | April 30, 2008 | |
| Temperature, water deg. centigrade | 32 | 2 | 0 | ||
| Flow rate | 32 | 2 | 0 | ||
| Nitrogen, nitrate total [as N] | 32 | 2 | 0 | ||
| Cyanide, weak acid, dissociable | 32 | 2 | 0 | ||
| Arsenic, total recoverable | 32 | 2 | 0 | ||
| Iron, total recoverable | 32 | 2 | 0 | ||
| Nickel, total recoverable | 32 | 2 | 0 | ||
| Silver total recoverable | 32 | 2 | 0 | ||
| Zinc, total recoverable | 32 | 2 | 0 | ||
| Cadmium, total recoverable | 32 | 2 | 0 | ||
| Lead, total recoverable | 32 | 2 | 0 | ||
| Chromium, total recoverable | 32 | 2 | 0 | ||
| Copper, total recoverable | 32 | 2 | 0 | ||
| Mercury, total recoverable | 32 | 2 | 0 | ||
| Nitrogen, ammonia total [as N] | 12 | 2 | 0 | ||
| BOD, 5-day, 20 deg. C | 4 | 2 | 0 | ||
| BOD, 5-day | 4 | 2 | 0 | ||
| Coliform, fecal general | 0 | 2 | 0 | ||
| Floating solids, waste or visible foam-visual | 15 | 1 | 0 | ||
| Solids, settleable | 8 | 1 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 1 | 0 | ||
| Hardness, tot calc. [Ca, Mg, Fe] as CaC03 | 2 | 1 | 0 | ||
| Hardness, total [as CaCO3] | 19 | 0 | 0 | ||
| Oil & Grease | 2 | 0 | 0 | ||
| Hydrocarbons, petroleum | 2 | 0 | 0 | ||
| Oil and grease visual | 2 | 0 | 0 | ||
| Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | 2 | 0 | 0 | ||
| Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | 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 SD0025933.
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 SD0025933 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.