| CLIENT | Regional District of Nanaimo (RDN) |
| LOCATION | Nanaimo, BC |
| CONTRACT VALUE | $1,900,000 |
| SCHEDULE | Start Date: August 2022 End Date: August 2023 |
PROJECT PROFILE
KBL (previously SECURE Energy) was awarded a contract of perform the installation of final cap materials over a portion of the North Slope at the Nanaimo Regional Landfill identified including anchor trench construction and existing road refurbishment; landfill gas collection piping decommissioning, salvage, and reinstatement; supply and installation of various material for leachate collection, geotextile cushions, and landfill final cover system amongst other scope elements.
PROJECT CHALLENGES
KBL successfully completed the full scope of work associated with the closure and capping of the landfill site, in strict accordance with the RDN’s staged construction sequencing and regulatory requirements. The project encompassed environmental protection measures, final waste grading, gas and leachate collection system installations, and the construction of a multi-layer engineered final cover system.
Additional site civil works included the installation of liner boots at existing manholes and pipe penetrations, construction of mid-slope and toe drainage ditches, and installation of downchute systems. Underlying these drainage features, KBL installed non-woven geotextile fabric to provide soil separation and stability. The ditches and chutes were then armored with rip rap to prevent erosion and promote long-term function. A sanitary sewer clean-out extension was also supplied and installed to maintain access for maintenance activities.
The work included:
- North Slope regrading 3,800 m3 (cut /fill)
- Trenching and installation of 2000 LM of landfill gas and condensate piping
- Trenching and installation of 226 LM of leachate collection piping
- Surface preparation and installation of landfill cover including 16,000 m2 of Geotextile Fabric, 40 mil LLDPE Geomembrane and Draintube (material supplied by RDN)
- Supply and Install protective layer, 5500 m3 sand fill and 4100 m3 Topsoil
- Hydroseeding 13,792 m2
- Civil work included relocation of a section of North perimeter road, construction of surface water ditches, rip-rap placement.
SUCCESS
Through the integration of detailed staging, precision installation, and adherence to technical specifications, KBL delivered a comprehensive landfill closure and capping system that meets both environmental performance goals and long-term operational reliability. KBL completed the project with no safety infractions, to the satisfaction of the RDN.
