Mardie Project

Proposal description: 

Mardie Minerals Pty Ltd proposes to develop a high volume salt and Sulphate of Potash project at Mardie, approximately 80 km south west of Karratha, in the Pilbara Region of Western Australia.  The proposal would utilise seawater and evaporation to produce a concentrated salt product and other associated products.

The proposal includes a seawater intake, evaporation ponds, processing plant, bitterns disposal pipeline and outfall, desalination plant, freshwater supply bores and associated infrastructure. The only waste product would be approximately 3.6 GLp/a of bitterns.

The proposal would include disturbance of up to 9,365 hectares on shore, and up to 40 hectares of marine environment.

Amendment to proposal

The Mardie Project (previously Mardie Salt Project) was referred on the 17 April 2018, and released for public comment from 02 May 2018 to 08 May 2018.

Subsequent to this release period, the proponent has requested that the proposal be amended prior to level of assessment being set. The requested amendments include:

  • Addition of a trestle jetty for shipping/export purposes as shown in Figure 1;
  • Addition of a dredging channel for construction of the jetty as shown in Figure 1; and
  • Change of the proposal name from “Mardie Salt project” to “Mardie Project”.

Comments are invited in regard to the proposed additions to the project.

The original referral documents can be found below, along with the details of the requested change (see 'Requested change to proposal' and 'Figure 1').

Assessment Number: 
Referred under EP Act: 
Industry sector: 
Last updated: 
November 24, 2021
Current Status: 
Ministerial Statement published
Ministerial Statement published
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