In order to measure water conservation, the first step is to define your water footprint. This is the amount of water used and consumed by your operations, products, or services, as well as the water-related impacts on the environment and society. Tools such as the Water Footprint Network or the Water Risk Filter can be used to calculate and assess this footprint. After that, you should set your water targets - specific and measurable objectives that you want to achieve in terms of water conservation. The Science Based Targets for Water or the CEO Water Mandate can help align your targets with the best available science and practice. Additionally, you should monitor your water performance by collecting and analyzing data on your water use, efficiency, quality, and impact. The Global Water Tool or the CDP Water Security Questionnaire can be used to measure and report this performance. Lastly, you should evaluate your water impact by estimating and communicating the benefits and costs of your water conservation initiatives for the environment, society, and economy. The Natural Capital Protocol or the Social Return on Investment are useful tools for measuring and valuing this impact.