Groundwater Sustainability

  1. Welcome
  2. Groundwater Planning
  3. Calendar

A waterbird at the shore of the Napa River delta

The Napa County Groundwater Sustainability Agency oversees Groundwater Sustainability in the County. The Agency is also in charge of creating and carrying out a Groundwater Sustainability Plan (GSP) for the Napa Valley Subbasin. An advisory committee is helping the Agency create the GSP.

The GSP will include policies and recommendations for taking care of and protecting groundwater within the Subbasin for the long term. The committee will submit a draft GSP for the Agency to review by November 1, 2021.

Discover the history of groundwater in Napa County with the interactive timeline.

Has your well run dry? Report it here.

What to do if your well is no longer producing water

Submit questions or comments about the GSP.