In 2003, the State Government announced the Water Proofing Adelaide project to secure Adelaide's water supply into the future. 

Water Proofing Adelaide brochure (990kb)
Water Proofing Adelaide final strategy (2.1MB) 
 

In June 2009, the Water for Good plan was released. This plan identifies actions to diversify water supplies to reduce reliance on the River Murray and other rain-dependant sources.

You can read more about Water for Good by visiting the website.