Groundwater Resources Advisory Committee


Planning, Building and Environmental ServicesYour Place for Planning, Building and Environmental Permits



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Environmental Health


Citizen Portal Your place to find Permits and Application Status

!!! Important Earthquake Information !!!

Resources for Earthquake Recovery  


Beware of Contractor Scams and Unlicensed Contractors

Q & A- Contractor Scams - English

Q & A- Contractor Scams - Spanish


Building Permits Resources Post Earthquake

Red Tag and Yellow Tag Buildings in Napa County


Earthquake Related Building Inspections:

  • If you are looking for an emergency inspection due to the earthquake, and their property is in the county, call (707) 299-1998 to request an inspection. Leave the requested info, and an inspection will be scheduled. This is for quake damage ONLY.
  • If you need an inspection within the City limits regarding earthquake damage, contact the City of Napa Building Department at (707) 257-9540 or call the City Building Inspection line at (707) 258-7829.

Regular Building Inspections (not quake related):

  • We are currently scheduling for next week. Please call (707) 253-4416 to schedule an inspection.

Same Day Permits:                                                                                                                                                 


Safety Hazards Management after an Earthquake  

Food Facilities Safety  


Drinking Water and Safety Options

Boiling Water

Appendix to Bolling Water

Chlorination of Water Wells



Groundwater in Napa County

Groundwater, held in aquifers beneath Napa Valley, is a vital water supply source for residential, commercial and agricultural users in Napa County. Watch this page for "all things groundwater." 

Board of Supervisors Appoint a Groundwater Resources Advisory Committee (GRAC)

Sept. 20, 2011: Board of Supervisors appointed a 15-member Groundwater Resources Advisory Committee (GRAC).

The GRAC assists County staff and technical consultants with recommendations regarding groundwater, including data collection, monitoring, well pump test protocols, management objectives, and community support.  Click the link GRAC to get full details.