Environmental Health Division

Advisory:  Visit our new Fire Recovery Information Page for important information related to fire damages and water systems, wells, sewer and septic systems.

For wildfire-related questions regarding Debris Cleanup Options, Well Water Safety or wastewater system impacts, please review the information provided on this site, visit Fire Debris Information page, call (707) 299-1350, or email us at [email protected].

Due to COVID-19 social distancing protocols, many services are now being offered electronically. Please use the informational links provided or give us a call if you have questions about Consumer Protection, Well and Onsite Wastewater Treatment, Certified Unified Program Agency (CUPA), and Solid Waste Programs and Services.


  1. Divisions
  2. Services & Programs
  3. Other Information

Consumer Protection

  • Employee Housing
  • Mobile Home Parks
  • Retail Food Program
  • Public Water Systems
  • Recreational Health

Consumer Protection

Well and Onsite Wastewater Treatment

  • Wastewater Treatment and Disposal
  • Water Wells
  • Wildfire Water Well Safety Information
  • Building Clearances
  • Sewage Complaints
  • Alternative Sewage Treatment System (ASTS) Monitoring
  • Winery Pond Monitoring

Well and Onsite Wastewater System

CUPA

  • Hazardous Waste Generator
  • Underground Storage Tanks
  • Above ground Storage Tanks
  • California Accidental Release Prevention Program
  • Hazardous Materials Business Plan
  • Abandoned Vehicle Abatement
  • Complaint Response
  • Methamphetamine Contaminated Property Cleanup Act of 2005
  • Napa County Area Plan
  • Noise Control
  • Safe Drinking Water and Toxic Enforcement Act of 1986
  • Stormwater Management and Control
  • Technical Reference for Emergency Response

CUPA

Solid Waste

  • Solid Waste Inspection and Permitting
  • Body Art/Tattoo
  • Medical Waste
  • Waste Tire Enforcement
  • Garbage Hauler Vehicles
  • County Solid Waste and Recycling Program Management
  • Closed, Illegal, Abandoned (CIA) Solid Waste Sites

Solid Waste