Land Use and Onsite Sewage
“Authorized Persons” under the Sewerage System Regulation
An “Authorized Person” under the Sewerage System Regulation is either a registered onsite wastewater practitioner or a professional engineer, as outlined and defined in Authorized Persons under the Sewerage System Regulation (PDF 182K):
Registered onsite wastewater practitioners are qualified to design and/or construct type 1 and 2 systems only, whereas professional engineers may design and/or construct type 3 systems, as well.
The Three Types of Sewerage Systems
Sewerage systems are designated according to their ability to effectively treat wastewater effluent (domestic sewage) to minimum prescribed standards. On this basis, the Sewerage System Regulation’s definition of “treatment method” includes three classes (“types”) of sewerage system:
- Type 1: treatment by septic tank only.
- Type 2: treatment that produces an effluent consistently containing less than 45 mg/L of total suspended solids and having a five-day biochemical oxygen demand of less than 45 mg/L.
- Type 3: treatment that produces an effluent consistently containing less than 10 mg/L of total suspended solids and having:
- A five-day biochemical oxygen demand of less than 10 mg/L.
- A median fecal coliform density of less than 400 Colony Forming Units per 100 mL.
Certification and Training
The Applied Science Technologists and Technicians of BC (ASTTBC) registers practitioners once they have obtained the proper training through an accredited organization. Once registered, practitioners become “Authorized Persons” under the Sewerage System Regulation. The ASTTBC is also responsible for accrediting the educational programs in B.C. for wastewater practitioners.
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