State Engingeer Drought Update 9-8-2022Hot and dry conditions have led to diminished stream flows on many of the river systems across the state. As a result, the number of water rights which could be satisfied is reduced compared to what was reported 2 weeks ago. Surface water rights in Utah are limited by the available natural flow in the river system. Normally, as conditions get drier, the flow diminishes and fewer water rights can be satisfied. Because Utah water law follows the prior appropriation doctrine, older (senior) water rights have preference, or priority, over younger (junior) water rights. The four systems identified below (i.e., Bear River, Duchesne River, Provo River, and Sevier River) are a good representation of the various river systems throughout the state. The percentages shown in the table are based on the total amount of water rights. For example, 14% of the water rights on the Duchesne River system are currently being satisfied compared to 26% two weeks ago. River Commissioners oversee these systems to ensure water is being diverted by those entitled to receive it according to their priority dates. Since the water supply varies each year, we have provided data for the current year with data from the same day for the previous three. For example, last year at this time, 33% of the water rights on the Duchesne River system were being satisfied. In 2019, however, 38% of rights were being satisfied. Please note, when a system shows a number greater than 100%, it means that all water rights on the system are being satisfied and additional water is being stored in reservoirs. 
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