NOTICE: Updates To Resources Related To The Water Unavailability Methodology For The Delta Watershed

From the State Water Board:

This notice is to inform you that the Summary Report, Appendices A, B, and D, and the spreadsheet relating to the State Water Resources Control Board’s Water Unavailability Methodology for the Delta Watershed have been updated to include information for October 2021. The updated resources are available on the Water Unavailability Methodology webpage under ‘Methodology Resources.’

For more information regarding drought in the Delta watershed, please visit the Delta Drought webpage. To view the curtailment status of a specific water right or claim in the Delta watershed, including information on curtailment statuses for October, please check the Delta Watershed Curtailment Status List.

If you have any questions, you may send an email to or call the Delta Drought phone line at (916) 319-0960.

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