Quarterly Newsletter

Started in 2023, the Quarterly Newsletter provides news and information related to the Sonoma County Groundwater Agencies in Petaluma, Santa Rosa, and Sonoma Valley. The newsletter is published in February, May, August, and November and is available in English and Spanish.

Prior to 2023, monthly Email Updates were provided. Access the archive of those updates from 2015-2022.

Featured Articles

Voluntary Well Monitoring Program gears up for spring

Voluntary Well Monitoring Program gears up for spring

Sonoma County’s groundwater basins are characterized by diverse geological conditions underground, so to truly understand how much water is in our aquifer requires water level measurements at many strategic locations throughout the region. While there are several...

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Groundwater stewardship at home with Sebastian Bertsch

Groundwater stewardship at home with Sebastian Bertsch

Sebastian Bertsch’s interest in groundwater stewardship started early. Recalling his early childhood spent hiking with his family in his native Switzerland, he marveled at the abundance of freshwater along the way. “You never had to carry a water bottle,” he said. “You’d always find little springs that provided a source of fresh water to drink.” This early exposure instilled in him an appreciation for the interconnectedness of water systems and a mindset of abundance rather than scarcity.

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Gary Mickelson: Petaluma’s Groundwater Industry Leader

Gary Mickelson: Petaluma’s Groundwater Industry Leader

In his nearly 30 years in the local pump and well industry, Gary Mickelson (who serves on the Petaluma Valley GSA Advisory Committee) provides insight on concerns of well owners, including that customers seem to ask a lot of questions about water quality, and they...

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