Any home or building that is not connected to a municipal or city sewage system needs a method for getting rid of human waste. Some buildings, usually in rural settings with no running water, may use an outhouse or privy. All buildings with indoor plumbing need to have a sewage disposal system that is in compliance with the Sewerage System Regulation.
Every owner who wants to construct a new septic system, or alter or repair an existing one, must retain the services of an authorized person who may be a professional engineer or a registered onsite waste water practitioner to design and oversee construction of the disposal system.
When it is not possible to install a sewerage system on a parcel of land, the owner may choose to install a sewage holding tank. Minimum requirements must meet the Sewerage System Regulation requirements.