Napa Valley's wine industry is confronting new groundwater fees as county officials work to fulfill California's state-mandated sustainability objectives. The proposed charges, slated for the 2026-27 fiscal year, will affect grape growers even if they do not pump groundwater directly, with a fee of $17.53 per planted acre.
Those who utilize groundwater for irrigation will face an additional charge of $26.91 per acre, bringing their total to $44.44. County officials contend that all growers, regardless of their water source, benefit from the availability of groundwater. The revenue generated will support the Napa County Groundwater Sustainability Agency, tasked with ensuring the aquifer's viability from Calistoga to south of Napa.
Wine industry representatives have expressed concerns about the timing of these new expenses, citing existing pressures from mounting regulations and increased labor costs. Michelle Novi of Napa Valley Vintners stated in June that the fee arrives at a difficult period for the industry.
The county has historically allocated approximately $2 million annually from its general fund to the groundwater agency. However, this contribution has been reduced to $500,000 for the current fiscal year. The remaining operational budget for the agency will be covered by the newly implemented fees and existing savings. Supervisors agreed in June to utilize agency savings to mitigate the initial financial impact on the industry.
Beyond the wine industry, rural homeowners and businesses with wells will be charged $28.17 per parcel. Public water systems are subject to a fee of $58.47 per acre-foot. The board of supervisors is expected to vote on the proposed rates, and the charges are anticipated to appear on property tax bills.