Decentralized Small Bore Collection and Treatment System Installation Case Study

This paper presents a case study for the delivery of wastewater servicing solution in Ontario, Canada. A decentralized small diameter gravity sewer wastewater collection and treatment system was implemented Eastern Ontario under a Ministry of Environment Order to address failing on-site septic systems. The Municipality was obliged to take over operation of the on-site systems; however, there were not adequate funds available to rectify the failing systems. A group of local companies initiated the process to find and deliver a solution featuring a Design-Build-Operate-Finance model for a private communal sewage system showcasing advanced wastewater technology. The case study will discuss the project context; implementation of design, approvals and construction; financial and delivery model; and key success factors and lessons learned. The case study will highlight how using unconventional technology and innovative funding enabled the implementation of a decentralized wastewater servicing solution.