Household Hazardous Waste (HHW)

Dispose of HHW Properly

Improper and illegal disposal can contaminate our drinking water, impede wastewater treatment plants, pollute local waterways and endanger workers. It can also lead to penalties and fines.

Examples of HHW

  • Antifreeze
  • Batteries
  • Carburetor cleaners
  • Cosmetics
  • Drain openers
  • Fluorescent bulbs / tubes
  • Fungicides
  • Gasoline and fuel additives
  • Glues and cements
  • Grease and rust solvents
  • Herbicides
  • Insecticides
  • Latex and oil-based paints
  • Lighter fluids
  • Mercury containing items (thermometers, thermostats, etc.)
  • Oven cleaners
  • Paint thinner and stripper
  • Photo chemicals
  • Polishes and cleaners
  • Pool chemicals
  • Rechargeable or alkaline batteries
  • Syringes
  • Transmission fluids
  • Unwanted medications (no controlled substances - contact your pharmacist if you are unsure if your medication is a controlled substance)
  • Used oil and oil filters
  • Wood and metal cleaners
  • Wood preservatives

Where Can I Take HHW?

Permanent HHW Collection Facility

The permanent HHW collection facility is located at 889-A Devlin Road, off Highway 29 in south Napa. It is for safe and legal disposal of unusable hazardous products. Please remember to pack products carefully so they won’t mix or spill and transport them in the trunk if possible.  The facility accepts all types of household hazardous waste except radioactive materials, explosives and ammunition.

  • Households:  No appointment required; no fee.
  • Open every Friday  & Saturday :  9 a.m. until 4 p.m.
  • For highway safety, there is a limit of 15 gallons or 125 pounds of household hazardous waste per trip.
  • For more information call:  800-984-9661 or 707-259-8608.

Temporary Up Valley Events

Upper Valley Waste Management Agency sponsors twice yearly hazardous waste collection events. Events are normally held in the spring in St. Helena and in the fall in Calistoga. Residents may dispose of hazardous waste at these temporary events at no charge and appointments are not required. Businesses waste is accepted at the temporary events as well, businesses are charged a fee for this disposal service and appointments are required.

This page will be updated with temporary events when they are planned. If you'd like to be informed of future events, please email [email protected].