City of Armadale Landfill Gas Flaring Project

The City of Armadale Landfill Gas Flaring Project (EOP100499) is a waste management project located at the Hopkins Road Refuse Site in the suburb of Armadale, approximately 30 kilometers southeast of the Perth central business district in Western Australia. Registered in July 2014, the project operates within the City of Armadale, a region characterized by a mix of urban residential development, industrial zones, and semi-rural properties leading into the foothills of the Darling Scarp.

The project operates under the Carbon Credits (Carbon Farming Initiative, Landfill Gas) Methodology Determination 2015. This methodology involves the installation and operation of a system to collect landfill gas, primarily methane generated by the anaerobic decomposition of organic waste, and combust it using a flaring device. By converting methane into carbon dioxide, which has a significantly lower global warming potential, the project generates Australian Carbon Credit Units (ACCUs). The project activities cover both legacy waste (deposited before July 2012) and non-legacy waste.

Environmentally, the Armadale region experiences a Mediterranean climate with distinct winter-dominant rainfall, averaging between 800mm and 1000mm annually, particularly higher in the foothills compared to the coastal plain. The local geology and soil profiles typically consist of Bassendean and Southern River sands, characterized as sandy, free-draining, and low in fertility, transitioning to lateritic gravels and clays as the terrain rises towards the Darling Scarp.

The City of Armadale has integrated this project into its broader Corporate Greenhouse Action Plan. Since its inception, the project has reportedly abated over 110,000 tonnes of carbon emissions. The City utilizes revenue generated from the project to fund a "Carbon Reserve" which supports further abatement initiatives. Notably, while the Hopkins Road landfill is scheduled for closure to general waste in favor of waste-to-energy solutions, the gas capture infrastructure will likely continue to operate to manage emissions from the decomposing waste already in place.