Date: 7-9 December, 2015 ‘Septage’ is both solid and liquid waste that accumulates in onsite sanitation systems (OSS) e.g. septic tanks. This has three main components – scum, effluent and sludge. It has an offensive odour, appearance and contains significant levels of grease, grit, hair, debris and pathogenic micro organisms. The construction and management of OSS are left largely to ineffective local practices and there is lack of holistic septage management practices.