Brockman Syncline 4 Iron Ore Project – Marra Mambas Proposal

Closed 28 May 2018

Opened 21 May 2018


Hamersley Iron Pty Limited propose to expand its existing Brockman 4 Syncline Iron Ore Mine.

The expansion would include further clearing of up to 4,800 hectares and expand its current development envelope by 2,567 hectares. Additional dewatering would also take place resulting in dewater discharge extending further along Boolgeeda Creek by nine kilometres.

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.


  • All of Western Australia


  • Public


  • Seven-day comment on referrals