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Communications. Getting started. Pearltrees videos. The Shop. Reference. Products. Business. Computing. Interesting. Technologies. Real-Time Reservoir Information. Reservoir stage data are collected every day from USGS , IBWC , and USACE websites. These data are preliminary and subject to revision. Reservoir storage (in acre-feet) is derived from these stage data (elevation in feet above mean sea level), by using the latest rating curve datasets available to TWDB.
This application uses real time gaged observations at around 7 AM today from 119 major reservoirs to approximate today's storage for each reservoir and today's total storage for water planning regions , river basins and the state of Texas. These instantaneous data are updated to mean daily data for all previous days. These 119 reservoirs, all having 5,000 acre-feet or greater conservation pool capacity, account for about 96% of total conservation capacity of all major reservoirs in Texas.