Sanitary Sewer Overflows

Who should notify WDEQ about an SSO, and when:

Any owner or operator of the following facilities

  • Municipal, state, federal, regional, industrial, or other private wastewater collection systems
  • Wastewater/collection utility works
  • Wastewater treatment works

Reporting of the SSO should occur verbally within 24 hours of becoming aware of the event:

  • WYDEQ SSO Contact: 307-777-8669 or 307-777-7781

Required written notification to WDEQ:

  • Within a five day period after the event
  • Hand written or electronic submittal
  • Should include all corrective actions taken and preventative measures in the future

For additional information and forms please click here