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Clean Water Act discharge permit · NPDES SDR10P5WU

RCP&E RAILROAD - HURON LOCOMOTIVE LEAD, Huron, SD: NPDES SDR10P5WU discharge permit, effluent exceedances, inspections, penalties

RCP&E RAILROAD - HURON LOCOMOTIVE LEAD, held by Rapid City, Pierre & Eastern Railroad, holds NPDES permit SDR10P5WU. EPA’s file records it issued May 14, 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 RCP&E RAILROAD - HURON LOCOMOTIVE LEAD: its NPDES ID, its permit type and status, its dates, its address in Huron, South Dakota. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES SDR10P5WU.

Identity

Facility as filedRCP&E RAILROAD - HURON LOCOMOTIVE LEAD
Permittee as filedRapid City, Pierre & Eastern Railroad
NPDES IDSDR10P5WU
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedMay 14, 2026
Expiration dateOctober 31, 2028
Issuing agencySDDANR
AddressHuron, SD 57350
SubwatershedRavine Lake-Broadland Creek (HUC 101600060804)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES SDR10P5WU.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES SDR10P5WU.

Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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

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, SDR10P5WU.

Start the watch

How often?
  • 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 SDR10P5WU there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.