Onsite Wastewater Engineering
Septic System Design & Engineering
From rural acreages to lakefront estates, we design compliant, long-lasting onsite wastewater systems tailored to BC's unique soils and regulations.
BC's Onsite Wastewater Specialists
Blackstone Engineering provides full-service septic design and engineering for residential, commercial, and rural properties throughout the Lower Mainland, Fraser Valley, and Sea-to-Sky corridor. Every system is engineered by Gordon Anderlini, P.Eng. and designed to meet BC Health Authority requirements.
What We Offer
Septic Engineering Services
Site Assessments & Perc Testing
We evaluate your site's soil conditions, drainage characteristics, and setback requirements to determine the most suitable system type and location.
Residential Septic Design
Custom engineered systems for new homes, additions, and replacements — conventional, pressure-dosed, mound, and advanced treatment systems.
Commercial & Institutional
High-capacity systems for wineries, restaurants, worker camps, resorts, and commercial developments with complex loading requirements.
Lakefront & Sensitive Sites
Specialized designs for waterfront properties, steep slopes, and environmentally sensitive areas requiring advanced treatment and setback management.
Maintenance & Monitoring Programs
Scheduled inspection, performance monitoring, and compliance reporting to keep your system operating at peak efficiency and meet permit conditions.
Subdivision & Multi-Lot Planning
Onsite wastewater feasibility and design for subdivision applications, ensuring each lot can support an approved system before land sale.
Our Septic Design Process
Site Visit & Soil Testing
We conduct percolation tests, soil profile assessments, and site measurements to characterize your property.
System Selection
Based on soil data, lot size, and usage, we recommend the most appropriate and cost-effective system type.
Engineered Design
We produce stamped drawings, specifications, and a complete permit package ready for Health Authority submission.
Permit & Construction Support
We liaise with the Health Authority, answer RFIs, and provide construction inspection to ensure the system is built to spec.
Why Choose Blackstone for Septic Engineering?
- BC Health Authority permit expertise
- Gordon Anderlini, P.Eng. on every project
- All system types — conventional to advanced treatment
- Lakefront, steep slope & sensitive site specialists
- Fast turnaround on permit-ready packages
- Construction inspection & as-built documentation
Need a Septic System Designed?
Contact us for a site assessment — we'll tell you exactly what your property needs.
Request a Site Assessment