Annual inflows into the Basin since the 1890s have averaged 26,000 GL, of
which runoff into streams contributed about 24 000 GL, accessions to
groundwater systems about 1000 GL and transfers into the Basin as a result of
the Snowy River scheme about 1000 GL.
Figure 2 illustrates variation in the availability of water and the prolonged
period of low inflows beginning in 2002.