adjustment mechanism as a constraint measure. This criterion does not apply to supply measures. Information Requirements for Preparing and Assessing Business Cases The following section details the information requirements that are to be provided in a supply or constraint measure business case. This information will allow SDLAAC to assess individual project business cases, assist the MDBA to conduct a preliminary analysis of an initial suite of proposed measures at the end of the business case phase, and inform SDLAAC and BOC’s determination of the package of measures to proceed to Phase 3. While not all requirements may be relevant for all projects, it is recommended that all requirements are considered and where not relevant this is stated in the business case with the associated rationale. Appendix 5 provides a high level summary of which sections are relevant to each supply and constraint measure project type. Appendix 6 provides a summary table of the key evaluation criteria which will be used by SDLAAC to assess projects. Reports need to be referenced appropriately throughout the business case and a bibliography of referenced reports included in the business case. Project Details All business cases need to provide an overview of the project that contains, as a minimum, the following: description of proposed measure, including locality map; name of proponent and proposed implementing entity; summary of estimated costs and proposed schedule; and definition of the measure within one of the follow categories: environmental works and measures at point locations; water efficiency projects; operating rules changes; physical constraint measures; or operational and management constraint measures. Ecological values of the site If relevant, the business case needs to include a description of the ecological values and features of the site that will be influenced by the proposed measure, including:
Legal and regulatory requirements The business case will be assessed on the basis that it provides the information requirements listed at Section 4.11.2 and an appropriate management strategy for each. Section 4.11.2 Governance and project management The business case will be assessed on the basis that it provides the information requirements listed at Section 4.11.3. Section 4.11.3 Risk assessment of Project Development and Delivery The business case will be assessed on the basis that: all significant project development and delivery risks and impacts have been identified, adequately described and analysed and robust treatments and mitigations proposed; the risk management strategy complies with the AS/NZS ISO 31000:2009 Risk and Guidelines; and all residual risks are negligible or can be adequately mitigated Section 4.11.4
Details of proposed environmental works and measure Phase 2 Business Case Guidelines reference Information to support modelling and analysis. This information will assist the MDBA or proponents represent a proposal in its hydrologic model(s) Guidance on the standard of information required 4.1 Project details 4.6 Operating regime 4.8 Technical feasibility and fitness for purpose A description of the proposed works regulators to control flow to wetlands/billabongs. Details of the works (e.g. sill levels, overtopping level, bed level etc) Adequate details of proposed works and measures to assist assessment of hydrological impact under hydrology of 1895 to 2009 period, including any risk mitigation strategies. Proposed operating rules for the regulators under full range of hydrological conditions experienced during 1895 to 2009 period. Design parameter values are adequate and detailed designs of works and measures are not needed. The level of information required is directly correlated to the complexity of the proposal. Data analysis/modelling undertaken Phase 2 Business Case Guidelines reference Information to support modelling and analysis. This information will assist the MDBA or proponents represent a proposal in its hydrologic model(s) Guidance on the standard of information required 4.5.1 Current hydrology and proposed changes to the hydrology Details of observed data or modelling undertaken (hydrologic/hydrodynamic) to assess current and changed hydrology of the system and consequent water savings. Details of representation of the proposed works and measures in the river system models. Calibration and validation carried out. The scale and level of detail of modelling is fit-for-purpose and commensurate with the scale and complexity of the change.