Land Use Development


Land UseEnvironmental Health Division

Land Use

The Land Use subdivision within Environmental Health is responsbile for regulating onsite wastewater treatment and disposal systems in the unincorporated area of Napa County and parcels not served by public sewer located within city limits. The Land Use subdivision reviews and issues permits for water well construction, soil borings, monitoring wells and geothermal wells. Land Use is also responsible for permitting and inspecting alternative sewage treatment systems, liquid wastewater haulers, winery wastewater ponds and holding tanks. Land Use staff review use permit applications, building permit plans and applications, and lot line adjustments for compliance with requirements found in Napa County Code.


Counter hours: Land Use Staff are available at the permit counter

Monday through Friday 8;00 AM to 12:00 PM and 1:00 PM to 4:00 PM or by Appointment


For general questions staff may be contacted by phone (707)253-4471 or by email:

Aileen Gano

Cindy Worthington

Kim Withrow


Inspection or Appointment Scheduling Hotline: (707) 253-4135

Online Permit Center (OPC) Your place to find your Permits and Application


Latest news on Onsite Wastewater Systems (AB 885) (The LAMP project)

San Francisco Bay Regional Water Quality Control Board Winery Wastewater General Order