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07-2025-0094Administrative - FormalClosedFY 2025· Region 07

EPA v. Missoula Biosolids ESA CWA 309G2E AO For Class I Penalties - Biosolids Expedited Settlement Program

Final Order With Penalty

Case summary

Facility generates Class A biosolids for public sale. The biosolids did not meet the requirements of 503. The facility is using the improper methods. The biosolids could not be verified for metals or pathogen compliance.

Defendants (1)

  • City of Missoula, MontanaNamed in complaintNamed in settlement

Facilities (2)

  • CITY OF MISSOULA

    435 RYMAN STREET, MISSOULA, MT, 59802

    Registry ID: 110020406087

  • CITY OF MISSOULA WWTP

    1100 CLARK FORK LANE, MISSOULA, MT, 59802

    Registry ID: 110064243661

Statutes cited

  • CWA 301/402NPDES Permit Violations
  • CWA 405Sewage Sludge Disposal

Enforcement conclusions (1)

  • Missoula Biosolids ESA CWA 309G2E AO For Class I Penalties - Biosolids Expedited Settlement Programentered 2025-09-29

    Primary law: CWA

    Federal penalty: $1,400

Timeline (5 milestones)

  • 2025-09-29Final Order Issued
  • 2025-09-29Complaint Filed/Proposed Order
  • 2025-09-30Enforcement Action Data Entered
  • 2025-10-29NPDES Closed
  • 2025-10-29Enforcement Action Closed

Case metadata

EPA activity ID
3604560961
Case number
07-2025-0094
Lead agency
EPA
EPA region
07
Voluntary self-disclosure
No
Primary statute
NPDES Permit Violations

Sourced verbatim from EPA ECHO Enforcement Case Report for case 07-2025-0094 . 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.