Water Reliability in the West -
2021 SECURE Water Act Report
Welcome to the 2021 SECURE Report Web Portal. Scroll down for an introduction to the 2021 SECURE Report, and click on the tabs at the top of this page to view material from specific sections.
Every five years, Reclamation submits a report to Congress under the SECURE Water Act analyzing projected risks to water supplies in the West using the best available science and highlighting collaborative efforts to mitigate those risks. The Water Reliability in the West – 2021 SECURE Water Act Report (2021 Report) provides a West-wide assessment of expected changes to water supplies, uses, and demands; highlights progress; and describes actions taken to increase water supply reliability since the 2016 Report.
The 2021 Report summarizes the more detailed information in the West-Wide Climate and Hydrology Assessment (2021 Assessment) and the SECURE Water Act Basin Reports and Factsheets in conjunction with the SECURE Report.
The website pulls some of the more detailed information together in an easy-to-use format and provides additional examples that illustrate what Reclamation has done to promote water reliability in the West.
Changing Conditions and Impacts
To operate reservoirs, deliver water and power to customers, and develop water management strategies, Reclamation relies on observations and future projections of water supply and demand, based on information about temperature, precipitation (rainfall and snowfall), snowpack, streamflow, water demands, and groundwater.
Click the image below to learn more about changing impacts and conditions. The infographic will open in a new tab.
Understanding how changing conditions impact water uses that are central to Reclamation’s mission helps us develop innovative approaches to meet these challenges. The other sections of the website provide a more detailed discussion of potential climate change impacts (including uncertainties associated with climate change projections) and innovations and strategies to maintain reliable water and power deliveries as conditions change.
Basin Reports
Basin Reports and Factsheets for each of the eight major Reclamation river basins identified in the SECURE Water Act provide more in-depth discussions of changes and innovative actions within that basin to help ensure sustainable water and power deliveries.
Click each basin on the map to access the Basin Reports and factsheets for a discussion of changes and innovative actions within that basin to help ensure sustainable water and power deliveries.
West-Wide Climate and Hydrology Assessment
The West-Wide Climate and Hydrology Assessment is a technical analysis of the impacts to water supply and demand based on future climate change projections and paleohydrology derived from tree-rings (dendrochronology). See the West-Wide Assessment pages for more info.
Use the navigation at the top of the page to explore the other sections where you'll find more information and examples of the work Reclamation has been engaged in over the past five years.
Water Reliability in the West -
2021 SECURE Water Act Report