Which of the following components is critical for developing a successful water-balance model for WEc2:...

A reliable water-balance model must begin by identifying every applicable water end use within the project scope. These may include plumbing fixtures, irrigation, cooling towers, process equipment, commercial kitchens, laundry, pools, humidification, and other building-specific demands. The team then establishes baseline and proposed consumption for each end use and determines where alternative water supplies can be applied. Prioritising alternative sources before quantifying demand could result in an incorrectly sized or operationally unsuitable system. Coordinating specifications with contract documents is important for implementation, but it does not establish the water balance itself. A complete inventory prevents major demands from being omitted and allows the team to calculate total consumption, potable-water reductions, reuse opportunities, treatment needs, and storage requirements accurately.

================