WA still works to Version 3.7 of the Australian Drinking Water Guidelines. The national guidelines have since moved to Version 4.0, and WA’s adoption is expected soon.
The real shift isn’t one new rule. It’s the move to health-based targets, showing that your source water, treatment barriers and monitoring work together to protect health, not just that last month’s samples passed.
A site can hold years of clean results and still need to prove its barriers suit the hazards in its source water. This isn’t a trigger for blanket testing or new infrastructure. It’s a prompt to check whether your existing evidence still stacks up.
Ecosafe International is running a Q&A on exactly this:
đź“ŤWA Mining Conference & Exhibition 2026 – Wed 16 Sept, 4:35pm, Perth Convention & Exhibition Centre.
We’ll cover what’s changed, what’s relevant to your site, what health-based targets mean in practice, whether your current monitoring is enough, and where the common gaps sit.
If you manage or supply drinking water on site, this one’s for you.
