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07-2025-0238Administrative - FormalClosedFY 2025· Region 07

EPA v. Santee Sioux Nation Public Water Supply SDWA 1431 AO For Imm. Hazard

Final Order No Penalty

Case summary

SDWA 1431 Emergency Order on Consent entered into between the EPA and Respondent to address a potential imminent and substantial endangerment situation involving acute contaminants including, but not limited to total coliform and E. coli identified in the public water system. The Order establishes criteria to ensure Respondent addresses the situation and achieves compliance with the Ground Water Rule of the Safe Drinking Water Act.

Defendants (1)

  • Santee Sioux NationNamed in complaintNamed in settlement

Facilities (1)

  • SANTEE SIOUX TRIBE OF NEBRASKA-TREATMENT PLANT AT WELL HOUSE 801

    415 FRAZIER AVE SUITE 2, NIOBRARA, NE, 68760

    Registry ID: 110012919235

Statutes cited

  • SDWA 1431-PWSEmergency Powers/PWS
  • SDWA 1412/1414National Drinking Water Regulations

Enforcement conclusions (1)

  • Santee Sioux Nation Public Water Supply SDWA 1431 AO For Imm. Hazardentered 2025-09-26

    Primary law: SDWA

Timeline (4 milestones)

  • 2025-09-26Final Order Issued
  • 2025-09-26Complaint Filed/Proposed Order
  • 2025-09-30Enforcement Action Data Entered
  • 2026-06-01Enforcement Action Closed

Case metadata

EPA activity ID
3604561247
Case number
07-2025-0238
Lead agency
EPA
EPA region
07
Voluntary self-disclosure
No
Primary statute
Emergency Powers/PWS

Sourced verbatim from EPA ECHO Enforcement Case Report for case 07-2025-0238 . Bulk data: ICIS-FEC download summary.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.