manufacturing operations that process raw wood, such as sawmills and pulp and paper mills, generate wood residue, such as woodwaste, sawdust, shavings, wood chips and off-cuts, also known as woodwaste. the decomposition of woodwaste at these landfill sites is a slow process that results in the generation of leachate. woodwaste leachate can impact receiving groundwater and surface water resources, as such, the monitoring of water quality downgradient of these waste landfill sites is important.