The Cotton CRC Project "Measurement to improve the water efficiency of on-farm storages inthe cotton industry" has been providing assessments of seepage and evaporation from waterstorages across the industry. These assessments have been conducted by consultants using theIrrimate Seepage and Evaporation Service.Analysis of the first 70 evaluations has been completed by the National Centre for Engineering inAgriculture and the results are included here. It must be noted that these results are preliminaryand that approximately 70 further evaluations will be completed over the life of the project,thus the range of results may change over this time.