Onsite Wastewater
Septic System Design
Safe, code-compliant onsite wastewater systems designed for BC's regulatory requirements and real site conditions.
Compliant Septic Systems for BC Sites
Designing a septic system in British Columbia requires compliance with the Sewerage System Regulation (SSR) and design by a Professional Engineer (P.Eng.). Coast Geotechnical provides complete septic system design services for new construction, system replacements, and property subdivisions.
We begin with a detailed site evaluation including percolation testing, soil assessment, and site mapping, then prepare a design that meets the requirements of your local health authority and the BC SSR.
Our reports and system designs are prepared to support building permit applications and construction.
Scope of Services
- Site evaluation and percolation testing
- Soil profile assessment and mounding analysis
- Septic system design (conventional and alternative)
- Field sizing and dispersal area layout
- Local health authority application support
- Inspection and as-built documentation
- Replacement system design for failing systems
- Subdivision septic feasibility assessments
How It Works
Site Evaluation
We visit the site to conduct percolation testing, assess soil conditions, map setbacks, and evaluate available area for the dispersal field.
System Design
Based on site conditions and design flow, we prepare a compliant septic system design with all required documentation for permit submission.
Permit & Construction Support
We submit designs to the local health authority and provide inspection services during installation to confirm the system is installed to design.
Common Questions