West Kalgoorlie, AQHY 30112 with CSA 0079, originally built by the WAGR Midland Workshops in 1964/66 as a WF type flat waggon, then in 1997, following several recodes and modifications, was one of seventy five waggons converted to the WQH to carry CSA sulphuric acid tanks between Hampton/Kalgoorlie and Perth. CSA 0079 is one of twelve units built by Acid Plant Management Services, WA in 2015.