Glen Martin, PRESS DEMOCRAT
The drought is intensifying efforts to conserve all of Sonoma County’s water resources, including a supply that has eluded oversight until recently: groundwater. But even as plans for groundwater monitoring and sustainable use proceed, tensions are building over its management.
The authority to evaluate and regulate groundwater comes from a 2014 law crafted in the middle of the state’s last drought. It authorized government regulation for certain groundwater basins through the establishment of local agencies, with the goal of “sustainable” management – that is, no significant drop in groundwater tables year-to-year – by 2042.
Three of Sonoma County’s 14 groundwater basins are subject to such oversight: Sonoma Valley, the Santa Rosa Plain and Petaluma Valley. The location of these basins corresponds to both high population density and major groundwater demands.