| 16 Oct 2019 | 10:00 AM | | | Ivan Yujnovich, Robert White, Susan Downs and Francis Trichet, Joondalup Urban Development Association, Murray Delta Residents and Ratepayers Association | | |
| 21 Oct 2019 | 01:45 PM | Legislative Assembly Committee Office | | Pastoralists and Graziers Association of Western Australia | | |
| 21 Oct 2019 | 02:45 PM | Legislative Assembly Committee Office | | Shire of Gingin, Murray Nixon, Byron and Kay Micke, Peter Swift | | |
| 28 Oct 2019 | 01:45 PM | Legislative Assembly Committee Office | | Western Rock Lobster Council, West Coast Abalone Divers, John Horwood, WA Fishing Industry Council, Pearl Producers Association | | |
| 30 Oct 2019 | 10:00 AM | | | Western Australian Water Users Coalition | | |
| 30 Oct 2019 | 10:50 AM | | | Wayne Gowland | | |
| 18 Nov 2019 | 01:45 PM | | | Glen McLeod Legal | | |
| 18 Nov 2019 | 02:15 PM | | | Cornerstone Legal | | |
| 17 Feb 2020 | 10:15 AM | | | Department of Primary Industries and Regional Development | |  |
| 17 Feb 2020 | 11:15 AM | | | Department of Water and Environmental Regulation | | |
| 17 Feb 2020 | 12:45 PM | | | Department of Planning, Lands and Heritage and WA Planning Commission | | |
| 19 Feb 2020 | 10:15 AM | | | Landgate | | |
| 20 May 2020 | 10:15 AM | | | Department of Water and Environmental Regulation | | |
| 20 May 2020 | 11:00 AM | | | WA Planning Commission; Department of Planning, Lands and Heritage | | |
| 20 May 2020 | 11:30 AM | | | Department of Biodiversity, Conservation and Atrractions; Environmental Protection Authority | | |
| 19 Aug 2020 | 10:15 AM | | | Department of Water and Environmental Regulation | | |