Environmental Water Reserve. established in all river and groundwater systems in Victoria, it is the share of water set aside for the environment, more information in; Our Water Our Future. ( http://www.dse.vic.gov.au/DSE/wcmn202.nsf/LinkView/BBE70FB30CBF17D4CA256FFE0008644316E9B1815F549080CA256FFF000B04E4)