The calculation of net virtual water is critical to the study. You should define various methods of water transfers, including legal and illegal grabs. You should develop criteria for determining the sustainability of the water supply to provide a mechanism for approval of legal transfers. Legal codes should be enacted to penalize illegal grabs of water. The intent of the approval and penalty process should be to protect the future water supply depending on population forecasts.
Thank you, Teresa l McKee, APA,AICP retired
Teresa McKee