Each year, we welcome the rainy season to nourish our gardens. But when the rain fades, we rely on the water from the tap to keep them green and thriving. In Sonoma County, many turn to groundwater as their primary source once the skies dry up.
Groundwater forms as rainwater and surface water seep into the earth, filling tiny pores and cracks in underground rock formations. In Sonoma County, this vital resource sustains farmers, businesses and rural residents who rely on wells. The Sonoma County Groundwater Sustainability Agencies (GSAs) oversee groundwater management in the Petaluma Valley, Sonoma Valley and Santa Rosa Plain, ensuring their long-term sustainability. Collectively, these basins supply approximately 26,647 acre-feet—8.7 billion gallons—of groundwater annually. To secure a reliable supply for the next 50 years, the GSAs are implementing projects and programs outlined in their sustainability plans. Local groundwater users are encouraged to participate in these efforts through new initiatives designed to protect and sustain this shared resource.
Level Up!: Tracking seasonal fluctuations in groundwater supply levels
Level Up! is a voluntary groundwater monitoring program that empowers well owners to track their groundwater levels each spring and fall. This data is integrated into the Sonoma County Groundwater Data Dashboard alongside official monitoring well data, providing a clearer picture of seasonal groundwater availability. By participating, well owners contribute valuable information that helps the community better understand and manage this critical resource.
Flow Smart: Understanding the demand for groundwater across Sonoma County
While Level Up! helps track groundwater levels, Flow Smart empowers well owners to understand their water use. Unlike those who receive water from public providers, many groundwater users have little insight into their actual consumption. To change that, the GSAs are offering free flow meters to well owners in the three basins. These devices provide precise water usage data, helping users manage their well water more efficiently, detect leaks, and monitor well performance. Additionally, the data collected will enhance the GSAs’ understanding of local groundwater use, supporting long-term sustainability efforts.
Well Aware: Tools everyone can use for sustainable groundwater use
Well Aware is a new program that will provide tools for building local groundwater sustainability and water conservation via a series of workshops, materials and consultations. Keep an eye out for the launch of Well Aware later in 2025!
In the meantime, if you are interested in water-saving strategies for your home and garden, find practical tips online at SavingWaterPartnership.org, which offers a Water Smart Plant Picker program for plant selection and listings of qualified water efficient landscapers. ResilientLandscapesCoalition.org offers recommendations for resilient gardens that save water, protect us from fire and promote biodiversity, and the Sonoma County Master Gardeners, through University of California Cooperative Extension, offer a free consultation program called Garden Sense, providing customized water and plant advice.
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