27/08/2026
What documents released under FOI tell us about the rock.
In July, WorkSafe Victoria released documents about the existing quarry (WA495) under Freedom of Information. Independent NATA-accredited laboratory analysis measures the rock at 63–66% crystalline silica — a known carcinogen. The operator’s own product information sheet says 66%, and warns that inhalation of dust can cause silicosis and lung cancer. For context, the threshold at which silica dust duties apply under the OHS Regulations is 1%.
Some perspective on those numbers. Engineered stone — the benchtop material at the centre of Australia’s silicosis epidemic — typically contained 40–95% crystalline silica, and was banned nationally from July 2024. At 63–66%, this rock sits within that range. To be clear: the ban applies to engineered stone products, not to quarrying natural rock, which remains lawful under strict dust-control duties. But it shows why the adequacy of dust controls for material like this matters so much — regulators considered silica at these concentrations serious enough to ban an entire industry’s product.
The sheet's own handling and disposal advice is worth reading in full. It recommends a respirator, gloves and eye protection for handling the product, and says that for disposal it should be collected in containers “for disposal as trade waste”.
WorkSafe also confirmed in writing that it holds no air monitoring or exposure assessments for the site — so exposure has never been measured.
Separately, following a community pollution report earlier this year, EPA inspected the quarry and issued remedial notices. EPA has confirmed the compliance dates have passed and controls have been installed.
All of this is now formally on the record with WorkSafe Victoria, EPA Victoria, Resources Victoria and South Gippsland Shire Council.
We’ll keep you posted — factually, as always.
— Prom Coast Guardians