In this study we aim to assess the current water use efficiency of the industry by analysing the water use data currently being collected by producers. Data from approximately twenty producers will be analysed. The properties will be selected to include producers from the range of irrigated cotton growing areas from Warren to Emerald, so as to represent the industry as a whole. Currently few producers monitor water use efficiency on their properties. Among those who do, the methods of calculation vary. A computer software package will be developed to encourage the keeping of good water records and to provide standardised approaches to the calculation of water use efficiency. This will facilitate the comparison of a producer's performance to industry standards and to the performance of other producers