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Biosolids to Aide in Pottery Road Landfill Closure Project

Posted Monday, September 15, 2014

The Regional District of North Okanagan (RDNO) will be using Metro Vancouver biosolids as part of an innovative process for closing the Pottery Road Landfill. The use of biosolids and yard waste compost will add important plant nutrients and organic matter to quickly establish grass over the site. Additionally, these materials contain natural soil microorganisms that convert methane gas from landfills into carbon dioxide thereby reducing greenhouse gas emissions by as much as 21 times.

Metro Vancouver and the RDNO have partnered for this project because it offers unique opportunities for both regions to participate in a landfill capping (closure) process using conventional waste products as resources to sustainably manage the final closure of the site. This partnership also allows the RDNO to control project costs. Fabricating the topsoil instead of purchasing it ready-made saves the project more than $400,000 and allows the RDNO to use locally made yard waste compost and local mineral soils in the fabrication of the topsoil.

These biosolids, approved for landfill closure use, meet the strict requirements of the Organic Matter Recycling Regulation which was developed jointly by the Ministry of Environment and Ministry of Health. The resulting topsoil will be thoroughly sampled before it is applied to the landfill and will achieve the standard for Urban Parkland Use. This nutrient rich material will be mixed with RDNO yard waste compost and local mineral soils to generate approximately 12,000 m3 of topsoil, which will then be hauled from the Greater Vernon Recycling and Disposal Facility to the Pottery Road Landfill. The biosolids mixed with the compost and mineral soil will provide the nutrients that are needed for grass growth in the spring of 2015.

The Ministry of Environment has been working with the project team to ensure odour is mitigated and the biosolids are managed in accordance with appropriate regulations. For further information, please contact the RDNO at 250-550-3700 or by email at [email protected].