	Wagga Wagga is upstream from the Riverina plain in the mid-catchment range of the Murrumbidgee River in an alluvial valley confined by low bedrock hills. Much of Wagga Wagga is on heavy clay soils in a large drainage basin with a small catchment discharge point. Groundwater therefore cannot leave easily, leading to Wagga Wagga having a problem with waterlogged soil and soil salination. Urban salination in Wagga Wagga is now the subject of a large multi-pronged approach to prevent further salination and reclaim salt-affected areas.