Residential Septic System Design
Designing residential septic systems across British Columbia since 2008
Serving Throughout B.C.
Located in Nelson BC, Highland Consulting serves and designs residential septic systems across British Columbia. Including,(but not limited to) Salmo, Creston, Trail, Slocan Valley, Nakusp, New Denver, Castlegar, Grand Forks, Christina Lake, Revelstoke, Golden, Invermere, Valemont, Cranbrook, Kimberly, Fernie and Kamloops.
What is Residential septic system design
Residential septic system design involves planning and designing on-site wastewater treatment for individual homes. It considers factors such as soil type, site conditions, regulations, and household size. Key components include a septic tank for wastewater primary treatment and a distribution field for effluent discharge. The design ensures efficient treatment, environmental compliance, and future maintenance.
Professional Residential Septic System Designs
Highland Consulting is a professional engineering and consulting firm with extensive wastewater experience and is qualified to design:
Type 1 (Primary treatment i.e. Septic tank)
Type 2 (Secondary treatment to 45 mg/L BoD/TSS standards)
Type 3 (Tertiary treatment to 10 mg/L Bod/TSS standards)
We can present solutions to the client for the optimum design for treatment technology and associated operational costs.
Highland Consulting specializes in the planning and design of septic systems varying in complexity, from simple gravity Type 1 Septic systems to more complex Type 2 and Type 3 septic solutions. We provide cost-effective solutions, considering the following factors:
Appropriateness of technology (including simplicity, reliability and cost)
Operation and maintenance cost projections
Source control policy/potential source modification/flow reductions
Efficiency
Sustainability and ecological impact
Our Process:
1. Site Investigation:
To start the design of your septic system, we first compile a comprehensive field analysis, soil profiles and hydraulic loading tests in the field with documentation of critical setbacks, design rationale, and recommendations
2. Comprehensive Design:
After finalizing the fieldwork and documentation, we utilize AutoCAD, where we carry out the detailed septic system design based on your needs and the constraints of the property.
Design suitable septic systems for site constraints including Type 1 septic systems, Type 2 septic systems, and Type 3 systems.
Type 1 septic solutions typically are comprised of septic tank and gravity/presurized septic feilds.
Type 2/3 septic systems require pre-teratment with wastewater treatment plant (WWTP)
A typical WWTP would comprise of mechanical system which may include (but is not limited to) technology such as:
(i) Activated sludge
(ii) Rotating Biological Contactor (RBC),
(iii) Sequencing Batch Reactor (SBR)
(iv) Membrane Filtration.
A biological treatment system would include
(i) Sand filtration
(ii) Combined ground disposal and Treatment
(iii) Constructed Wetland Treatment and
(iv) Solar Aquatic Treatment System (Living Machine)
Disposal system design includes gravity effluent dispersal, pressurized equal distribution, sub-surface
Wetland, non-pumped pressurized systems and drip irrigation disposal.
3. Filing With Health Authorities such as the Interior Health:
Submission of Record of Sewage System with legal documents, septic system design drawings and supporting documents in order to assist in obtaining a building permit from the building authority and to allow construction of the proposed septic system.
4. Management of Septic Installation
We administer a routine construction site inspections (when required) and produce “as constructed” drawings for final submission to the Health Authority. We also help assist in contractor selection.
5. Final Approval/Letter of Certification:
We submit the final documentation including Letter of Certification, Construction Record Drawing and Operation & Maintenance Manual.
Scope of Work Done by Others.
(Example)
Test Pit Excavation
Installation of proposed septic system by certified ROWP (Registered Onsite Wastewater Practitioner)
Commissioning of septic system
Material Testing Costs (if required)
All services include:
Soil Evaluation -2 Test pits and 2 Permeameter Tests on Site
Design of Suitable Septic System to SPM (Sewerage System Standard Practice Manual standards)
Produce Site Investigation Report
Issue Design and Filing to IH (Interior Health) or local health authority
Issue Design and Filing (copy) to RDCK (Regional District of Central Kootenays) or local building authority
Commission System and Issue Operation and Maintenance Manual
Issue “Record Drawings” and Letter of Certification to IH (Interior Health) by ROWP (Registered Onsite Wastewater Practitioner)
Drawing in AutoCAD/pdf format
High Resolution Drone imagery (if location is permitted)
Why is the design of your septic system crucial?
Proper design ensures efficient wastewater management, environmental sustainability, and compliance with local regulations.
With years of experience designing efficient septic systems across British Columbia, we ensure that we meet the unique requirements of you and your property while meeting or exceeding the regulatory requirements.
Hiring A Septic Installation Company
A qualified Registered Onsite Wastewater Practitioner (ROWP) can be located on the ASTTBC website: https://asttbc.org/
Note - It is the responsibility of the owner to ensure that the septic installation contractor is certified and/or pre-approved by Highland Consulting Ltd. As such, Highland Consulting Ltd. reserves the right to pre-approve septic installation contractors. Failure to engage a contractor that is not certified and/or not pre-approved by Highland Consulting Ltd. will result in an increase of inspection fees for re-inspections should work performed contain deficiencies.