Water & Irrigation

California droughts are becoming more frequent and persistent, as warmer winter temperatures driven by climate change reduce water held in the Sierra Nevada snowpack and result in drier soil conditions. To increase our resilience to future droughts, Californians must use water more wisely and efficiently.

External Resources

Napa County WICC
Napa County UCCE
​Napa RCD

​Groundwater Sustainability Plan

​The Groundwater Sustainability Plan is a basin wide plan that lays out a path for sustainable management of a groundwater basin over a 20-year period, and focuses on avoiding undesirable results. It was designed to keep groundwater resources at or above 2015 levels.

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Recycled Water

Recycled water is wastewater effluent that has been further treated and disinfected to provide a non-potable (non-drinking water) water supply. Recycled water is safe and suitable for uses such as vineyard irrigation and is an environmentally responsible way to conserve scarce and expensive water supplies. Learn more at Napa Sanitation District.

More Resources

Additional content can be found on our Heat & Drought page.

Rootstock: All Things Water – The Key to Resilient Farming 2022

Sustainable Vineyard Practices: Vine Physiology & Irrigation 2021