The British Columbian Sewerage System Standard Practice Manual (SPM) is the main reference source for B.C. wastewater practitioners responsible for planning, installing, and maintaining onsite sewage systems, pursuant to the Sewerage Regulation and Public Health Act.
Western Canada Onsite Wastewater Management Association of BC (WCOWMA) is a not-for-profit organization with a mandate to support its member authorized persons in providing safe and effective wastewater management for land owners.