Optimised Mardie Project - Revised Proposal

Closed 14 May 2025

Opened 8 May 2025

Overview

Mardie Minerals Pty Ltd has approval to develop a greenfields high quality salt and SoP project and associated export facility at Mardie, approximately 80 km south-west of Karratha, in the Pilbara region of WA. The project will produce a high purity salt product, Sulphate of Potash (SoP) and other products that can be derived from sea water.

The revised proposal includes the offshore disposal of dredge spoil within a dredge material placement area (DMPA), upgrading the existing airstrip and permitting groundwater abstraction of up to 0.7 gigalitres per year (GL/yr).

Why your views matter

At this initial stage of the EIA process, comment is simply sought on whether or not the EPA should assess a proposal and, if so, what level of assessment is considered appropriate.

What happens next

Following the seven day public comment period and consideration of any comments received, the EPA will decide whether or not this proposal requires environmental impact assessment and, if so, what level of assessment will be applied.

The EPA's decisions on level of assessment are released each Monday on the EPA's website.

Areas

  • All of Western Australia

Audiences

  • Public

Interests

  • Seven-day comment on referrals