The proposal for Scarborough activities in Commonwealth waters was submitted to the National Offshore Petroleum Safety and Environmental Management Authority (NOPSEMA) in February 2019 as an Offshore Project Proposal
(OPP). Following stakeholder feedback and consultation, the OPP was accepted by NOPSEMA in April 2020.
Activities proposed in State waters were referred separately to the Western Australian Environmental Protection Authority (WA EPA) and the Commonwealth
Department of Agriculture, Water and the Environment (DAWE) in December 2018.
The DAWE referral decision of ‘Not a controlled action’ was released on 12 August 2019. The disposal of dredged material will be managed under a Dredging Spoil Disposal Management Plan (DSDMP) which was made available by the EPA for a four-week
public comment period during August 2019. The DSDMP provides details on the environmental management procedures to limit impacts.