Clean Water Act discharge permit · NPDES SD0028615
POWDER HOUSE PASS CID, Lead, SD: NPDES SD0028615 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 13Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
POWDER HOUSE PASS CID, held by Powder House Pass, holds NPDES permit SD0028615, which discharges to Unnamed Tributary Of Whitewood Cree. EPA’s file records it issued August 1, 2018 and expiring June 30, 2023. 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 | POWDER HOUSE PASS CID |
|---|---|
| Permittee as filed | Powder House Pass |
| NPDES ID | SD0028615 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | August 1, 2018 |
| Expiration date | June 30, 2023 |
| Issuing agency | SDDANR |
| Address | Lead, SD 57754 |
| Receiving water | unnamed tributary of Whitewood Cree |
| Subwatershed | Upper Whitewood Creek (HUC 101202020207) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 13Pollutants on file
- 13Under a numeric limit
- 6With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 6 | 44 | 44 | January 31, 2025 | 660% over the limit |
| Nitrogen, ammonia total [as N] | 48 | 20 | 20 | January 31, 2024 | 926% over the limit |
| Solids, total suspended | 6 | 19 | 19 | April 30, 2025 | 394% over the limit |
| E. coli, colony forming units [CFU] | 4 | 7 | 7 | July 31, 2023 | 1,821% over the limit |
| BOD, 5-day, percent removal | 1 | 3 | 3 | July 31, 2023 | 53% over the limit |
| Solids, suspended percent removal | 1 | 2 | 2 | July 31, 2023 | 127% over the limit |
| Temperature, water deg. centigrade | 2 | 0 | 0 | ||
| Flow rate | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Nitrogen, total [as N] | 2 | 0 | 0 | ||
| Phosphorus, total [as P] | 2 | 0 | 0 | ||
| Flow, total | 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
- 7Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 31, 2023 | Dry-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
| November 13, 2023 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| November 7, 2023 | Dry-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
| October 31, 2023 | Dry-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
| May 26, 2023 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| May 20, 2023 | Effluent Violations - Unauthorized Discharge | ST6 |
| May 20, 2023 | Dry-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | 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 SD0028615 there.
Nearby on the register
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- Every permit record in South Dakota, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.