Chalice Mining's proposed Gonneville mine faces comprehensive environmental scrutiny after public outcry.
The State's Environmental Protection Authority will thoroughly assess Chalice's plan to establish a nickel-copper-platinum mine in Toodyay.
The proposal, which involves clearing up to 940 hectares of farmland, garnered 743 submissions, with 708 requesting a public environmental review.
Outgoing EPA chair Matthew Tonts highlighted potential concerns, including greenhouse gas emissions and disruption to flora, fauna, and inland waters.
The company anticipates two to three years for environmental approvals.