Clean Water Act discharge permit · NPDES SD0020796
LEAD - DEADWOOD SANITARY DISTRICT, Deadwood, SD: NPDES SD0020796 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 40Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
LEAD - DEADWOOD SANITARY DISTRICT, held by Lead - Deadwood Sanitary District, holds NPDES permit SD0020796, which discharges to Whitewood Creek And Gold Run Creek. EPA’s file records it issued March 13, 2003 and expiring March 31, 2008. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | LEAD - DEADWOOD SANITARY DISTRICT |
|---|---|
| Permittee as filed | Lead - Deadwood Sanitary District |
| NPDES ID | SD0020796 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 13, 2003 |
| Expiration date | March 31, 2008 |
| Issuing agency | SDDENR |
| Address | Deadwood, SD 57732 |
| Receiving water | WHITEWOOD CREEK AND GOLD RUN CREEK |
| Subwatershed | Upper Whitewood Creek (HUC 101202020207) |
| Program components on file | CSO, POTW, Pretreatment |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 43Pollutants on file
- 40Under a numeric limit
- 23With a violation of any kind
- 8With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 2 | 19 | 17 | February 28, 2025 | 296% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 19 | 16 | April 30, 2018 | 86% over the limit |
| Oxygen, dissolved [DO] | 1 | 4 | 3 | August 31, 2004 | 8% over the limit |
| Solids, total suspended | 6 | 8 | 2 | August 31, 2013 | 63% over the limit |
| pH | 4 | 6 | 2 | May 31, 2017 | |
| Coliform, fecal general | 4 | 4 | 2 | May 31, 2008 | 157% over the limit |
| Flow rate | 2 | 4 | 2 | May 31, 2025 | 17% over the limit |
| Chlorine, total residual | 1 | 2 | 1 | May 31, 2013 | 2,426% over the limit |
| Alkalinity, total [as CaCO3] | 2 | 6 | 0 | ||
| Solids, total dissolved | 0 | 6 | 0 | ||
| Conductivity | 2 | 4 | 0 | ||
| Nitrogen, total [as N] | 0 | 4 | 0 | ||
| Phosphorus, total [as P] | 0 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| Flow, total | 2 | 2 | 0 | ||
| Oil & Grease | 1 | 1 | 0 | ||
| Floating solids, waste or visible foam-visual | 1 | 1 | 0 | ||
| Overflows | 1 | 1 | 0 | ||
| BOD, 5-day, percent removal | 1 | 1 | 0 | ||
| Solids, suspended percent removal | 1 | 1 | 0 | ||
| Duration of discharge | 1 | 1 | 0 | ||
| Oil and grease visual | 1 | 1 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 1 | 1 | 0 | ||
| Temperature, water deg. centigrade | 2 | 0 | 0 | ||
| BOD, carbonaceous [5 day, 5 C] | 2 | 0 | 0 | ||
| Cyanide, weak acid, dissociable | 1 | 0 | 0 | ||
| Cyanide, total [as CN] | 1 | 0 | 0 | ||
| Arsenic, total [as As] | 1 | 0 | 0 | ||
| Beryllium, total [as Be] | 1 | 0 | 0 | ||
| Cadmium, total [as Cd] | 1 | 0 | 0 | ||
| Chromium, total [as Cr] | 1 | 0 | 0 | ||
| Copper, total [as Cu] | 1 | 0 | 0 | ||
| Lead, total [as Pb] | 1 | 0 | 0 | ||
| Thallium, total [as Tl] | 1 | 0 | 0 | ||
| Molybdenum, total [as Mo] | 1 | 0 | 0 | ||
| Nickel, total [as Ni] | 1 | 0 | 0 | ||
| Silver, total [as Ag] | 1 | 0 | 0 | ||
| Zinc, total [as Zn] | 1 | 0 | 0 | ||
| Antimony, total [as Sb] | 1 | 0 | 0 | ||
| Selenium, total [as Se] | 1 | 0 | 0 | ||
| Phenols | 1 | 0 | 0 | ||
| Mercury, total [as Hg] | 1 | 0 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 30, 2017 | Monitoring Violations - Analysis not Conducted | 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 SD0020796 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.