It’s not always easy to design a septic system for residential developments in Quebec.
The plan for the septic system installation of an isolated dwelling is quite standard. Likewise, building a wastewater treatment system for a campground or a worker’s camp is relatively straightforward. The designer must develop a plan for a commercial, community, and institutional (CCI) treatment system which is different from systems for isolated dwellings. What about a cluster of residences that are not connected to the municipal sewage system?
This cluster can be considered as a separate entity to be served by a single wastewater treatment facility rather than several. The systems of this class are referred to as semi-collective, individual cluster, non-collective cluster, or sometimes, small cluster, depending on the location or the regulations in force.
What are the criteria for making a sound decision between several individual systems or a semi-collective system for a cluster of dwellings?
SUMMARY OF THE DOCUMENT
The idea of a semi-collective septic installation as an alternative to multiple individual septic systems was explored. The technical advantages of this type of system are so significant that we are of the opinion that this solution should be the preferred option in cases of developing a new residential neighbourhood, a small community, or even a multi-unit building not connected to the municipal sewage disposal system. Of course, there are some inevitable issues, but also ideas for solutions to successfully carry out such projects.
The mandatory 50% markup factor, which is imposed in Quebec by regulation, is a guarantee of safety and significantly reduces the risk of failure and pollution. We can recommend that this approach be considered for the design of semi-collective septic systems even in other provinces where there is no such legal requirement.
In order to make an informed decision on the optimal choice, consult with the municipality to ensure that they are open to such a project, and contact us for any questions related to our System O)) treatment solutions!
For more details, take a look at our DBO))Clic on the subject of residential developments.