Clean Water Act discharge permit · NPDES SDR10P5SO
PCN 091U, Mitchell, SD: NPDES SDR10P5SO discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
PCN 091U, held by SD Department of Transportation, holds NPDES permit SDR10P5SO. EPA’s file records it issued February 19, 2026 and expiring October 31, 2028. 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.
What the register holds for PCN 091U: its NPDES ID, its permit type and status, its dates, its address in Mitchell, South Dakota. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES SDR10P5SO.
Identity
| Facility as filed | PCN 091U |
|---|---|
| Permittee as filed | SD Department of Transportation |
| NPDES ID | SDR10P5SO |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Construction stormwater |
| Issued | February 19, 2026 |
| Expiration date | October 31, 2028 |
| Issuing agency | SDDANR |
| Address | Mitchell, SD 57301 |
| Subwatershed | Dry Run-Firesteel Creek (HUC 101600110907) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES SDR10P5SO.
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 SDR10P5SO.
Inspections
EPA’s inspection file holds no inspection for NPDES SDR10P5SO.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES SDR10P5SO.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, SDR10P5SO.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 SDR10P5SO there.
PCN 091U, Mitchell, South Dakota: Coverage under a general permit SDR10P5SO, held by SD Department of Transportation; Construction stormwater; Effective; issued February 19, 2026, term to October 31, 2028, by SDDANR.
South Dakota holds 1,358 Construction stormwater coverages of this permit type in EPA’s file; 1,068 were issued before SDR10P5SO. SD Department of Transportation holds 182 permits in South Dakota.
Other permits held by SD Department of Transportation
- NH-PS 0012(187)106, CORSON, PCN 04FL, Mcintosh: NDR10I030, issued 2021-11-22
- PCN 05TY - EPA, Mclaughlin: NDR10I05U, issued 2025-01-03
- P 1806(12)149, PCN 038Z, STANLEY COUNTY, Ft. Pierre: SDR10I01F, issued 2020-08-24
- ER 6385(07), MELLETTE COUNTY, PCN 07N2, White River: SDR10I01R, issued 2021-08-12
- P 1806(15)176, STANLEY COUNTY, PCN 045K, Ft. Pierre: SDR10I01S, issued 2021-09-27
- NH 0018(203)333, CHARLES MIX, PCN 04V9, Pickstown: SDR10I01T, issued 2021-11-12
- NH 0212(182)187; DEWEY & POTTER, PCN 05EN, La Plant: SDR10I01V, issued 2021-11-29
- PCN 05HV - EPA, Kadoka: SDR10I03F, issued 2024-10-15
- PCN 04FC - EPA, Pine Ridge: SDR10I03N, issued 2025-01-03
- PCN 06CM - EPA, Eagle Butte: SDR10I03P, issued 2025-02-13
Coverages issued nearest SDR10P5SO
- 2026-02-19: JH LARSON BUILDING, Sioux Falls: SDR10P5SB, held by Great Place Construction, LLC
- 2026-02-19: MINNEKAHTA AVE. STRUCTURE REPLACEMENT, Hot Springs: SDR10P5SF, held by Heavy Constructors Inc.
- 2026-02-19: PCN 07NU, Belle Fourche: SDR10P5SK, held by SD Department of Transportation
- 2026-02-19: PCN 07CF, Custer: SDR10P5SM, held by SD Department of Transportation
- 2026-02-19: PCN 05V6, Corson: SDR10P5SN, held by SD Department of Transportation
- 2026-02-19: PCN 079F, Howes: SDR10P5SP, held by SD Department of Transportation
- 2026-02-19: SUMMERSET BUSINESS PLACE, Summerset: SDR10P5T5, held by Summerset Business Place LLC
- 2026-02-19: PCN 069D, Garden City: SDR10P5T7, held by SD Department of Transportation
- 2026-02-19: PCN 08GM, Lennox: SDR10P5T8, held by SD Department of Transportation
- 2026-02-19: PCN 06PR, Madison: SDR10P5T9, held by SD Department of Transportation
PCN 091U among its neighbors
6 discharge permits are in the Dry Run-Firesteel Creek subwatershed (HUC 101600110907); SDR10P5SO is one.
Other permits in the Dry Run-Firesteel Creek subwatershed (HUC 101600110907)
- CAMPUS DRAINAGE/RETENTION POND IMPROVEMENTS, Mitchell: SDR10P5HI, minor, term to 2028-10-31
- DAVISON RURAL WATER SYSTEM (WTP), Mitchell: SDG860038, minor, term to 2021-09-30
- MOUNT VERNON, CITY OF, Mount Vernon, City Of: SD0020486, minor, term to 2017-03-31
- PCN 07RF, Mitchell: SDR10P244, minor, term to 2023-03-31
- TOP GRADE SITE IMPROVEMENTS, Mitchell: SDR10P5FJ, minor, term to 2028-10-31
Nearby on the register
- Discharge permits in Mitchell
- Every permit record in Mitchell, A to Z
- Discharge permits in South Dakota
- Every permit record in South Dakota, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.
What this page shows
PCN 091U is one of 21 storm water construction permits on EPA's NPDES register in Mitchell, and it sits among 6 NPDES permits in the Dry Run-Firesteel Creek subwatershed. Among the 21 Mitchell storm water construction permits, 0.0% have a violation on file, and this permit likewise has no pollutants under a numeric limit or effluent exceedances recorded against it.