Documents: Underground mine fill: Audit guide (pdf, 553.61 KB) LAST UPDATED: 21 Feb 2025 Underground mine fill: Audit template (docx, 44.14 KB) LAST UPDATED: 21 Feb 2025 This mine fill audit tool has been provided to ensure consistency and raise standards in the Western Australian mining industry with regard to the use of paste or hydraulic fill and barricades.