Indeed, the scale of capital requirements is acknowledged as a criteria for project portfolio development \cite{Block_2010,Jeuland_2014,Sridharan_2019} notably for the calculation of project rates of return \cite{wcd2000}, however, the economy-wide impacts of such investments are generally not integrated in water-economy modelling \cite{Bekchanov_2017}. \cite{Ma_2015} the only one considering investment increases (however source of funding is implicit from household savings, investment is not project specific so does not reflect cost structure breakdown). Induced effects significant – with 1.3-1.7 multiplier effect Ortolano et al.2000 /Columbia Basin Project); income generated both inside and outside the basic sector