What are Water Sustainability and Indicators? Sustainability is a broad concept, including social, economic, environmental, and management processes and activities and holding a promise for future generations. Indicators can be used to measure progress toward sustainability goals and to measure conditions of particular parts of natural, social, economic, and management systems. The California Water Plan Update 2013 has embraced Water Sustainability Indicators as a part of a new way of doing business, where measuring ecosystem, social, economic, and management performance are all part of good decision-making. This web site provides information about indicators and analytical approaches useful in measuring progress toward water sustainability. This information was developed in collaboration with California Department of Water Resources and the US Environmental Protection Agency. Read more about What are Water Sustainability and Indicators?