On-Site Sewage System Program
The On-Site Sewage System Program (OSS) has regulatory oversight for all on-site sewage systems in Whatcom County. We perform a wide variety of activities to carry out this oversight that include:
- Certification program for OSS Pumpers, Installers and Operation and Maintenance Specialists
- Complaint investigations
- Enforcement of OSS Codes, e.g. Whatcom County Code, WCC 24.05 and Washington Administrative Code, WAC 246-272A
- Final Construction inspections
- Homeowner education and notification regarding proper Operation and Maintenance of their OSS
- Permit Issuance
- Site Application review for new, repaired or expanded OSS
- Subdivision, Boundary Line Adjustment and Conditional Use review
- Survey inspections of OSS in sensitive areas