Leeton is located approximately 126 km west of Wagga Wagga in New South Wales. The main townships with the Leeton Shire Council (LSC) boundary consist of Leeton, Yanco, Murrami, Whitton and Wamoon. The catchment draining through the LSC boundary is approximately 850 km² in size and drains in a typically westerly direction from the Colinroobie Ranges located to the east of Leeton. Much of the catchment drainage has been modified by agricultural activities. The purpose of the study was to allow LSC to:

• Better manage future development within the Shire.
• Understand and manage flood risks.
• Assess stormwater drainage systems.
• Identify and assess flood risk hot spots in order to assist in scoping work for the next stage of the floodplain risk management process.
• Apply for funding for a Floodplain Risk Management Study and Plan.

The main objective of the flood study was to develop a flood model that could be used to define flood behaviour on a local and regional scale for the historical 2012 event as well as a range of design flood events. The flood behaviour has been defined in terms of the nature, flood extent and flood risks in the catchment.