The remediation of Days Creek represents the first stage of the progressive remediation of the Brukunga mine site. Objectives for the remediation of Days Creek domain were developed by the Technical Advisory Group (TAG) in association with DSD officers. These objectives are consistent with those sought for the entire site, reflecting the inevitable limitations of partial remediation, and are to: • commence the progressive remediation of waste rock and tailings at the Brukunga mine site by co-disposal of acidic and metalliferous drainage (AMD) [pollutant] - generating materials; • demonstrate the feasibility of the saturated co-disposal strategy in order that it can be implemented with confidence over the entire site; • generate improvements to the water quality in Dawesley Creek downstream of the mine site; • enhance the clean water diversion capacity of the site, and thereby decrease the hydraulic load on the available acid water storage-pump back system, and water treatment plant; and • create a self-sustaining landscape with manageable human health and safety, and manageable environmental risks over the remediated lands. This report has been produced to support the development of a business case for investment in the site, and builds upon previous work by the TAG in the formulation of conceptual strategies for the full remediation of the site.