Hazardous Waste


Mason County's Household Hazardous Waste (HHW) Facility is located at the Eells Hill Transfer Station. It accepts hazardous chemicals and wastes from households in Mason County. It does not accept waste from businesses.

OPEN* Fridays and Saturdays, 10 am – 3 pm
There is no charge for disposal.

Scalehouse attendants will direct you to the drop off location.

No empty containers accepted
*closed on holidays when the Transfer Station is closed
We CANNOT Accept:
  • Latex paint
  • Fireworks
  • TVs, Computers or other electronics
  • medicines
  • alkaline batteriesbatteries
  • Ammunition or explosives of any kind
latex paint Latex paint is not considered a hazardous material. To properly dispose of latex paint:
  • Dry it Out and throw it away with your regular trash.
  • For small quantities – pop off the lid and let it dry up or paint it onto waste cardboard.
  • For larger quantities – mix it with clay-based cat litter or sawdust so it is no longer liquid before throwing away the can.
  • Always leave lids off empty, dried out containers.
battery Alkaline batteries do not need to be disposed of as a hazardous waste. They can be disposed with your regular household trash.
We DO accept the following material.
Please read below for how to safely transport your waste.
paint automotive products fluorescent tubes & bulbs
Oil-based paints and stains automotive products fluorescent tubes & bulbs
Flammable liquids like household cleaners aerosols
Flammable liquids like
gasoline & solvents
household cleaners aerosols
Pesticides & herbicides pool & spa supplies antifreeze
Pesticides & herbicides pool & spa supplies antifreeze
small propane bottles lithium & NiCad batteries  
small propane bottles lithium & NiCad batteries  
motor oil Eells Hill, Hoosport, Union & Belfair
Self-serve, drop-off is available at all four of our facilities during all operating hours. We have large drums for you to empty your used motor oil, oil filters and antifreeze. Because you will empty your containers into our large drums – you can keep them for next time –.
uncontaminated, used motor oil & antifreeze

auto and marine batteries


auto and marine batteries are also accepted at all
four facilities for $1.50 each.

Tips for Transporting your Household Hazardous Wastes
acceptable transport methods how not to transport materials
  • Keep products away from children and pets
  • Secure the load with ties to prevent it from shifting.
  • Keep products in their original containers.
  • Never mix different products together.
  • Make sure items are well sealed, lids tight and not leaking.
  • Place items in leak-proof tubs packed with newspaper.
  • Put leaking can into another tub or bucket, and add clay-based cat litter.
  • Wrap fluorescent bulbs/tubes in newspaper to prevent breakage.
Still have Questions? Click here
what do i do with it? donate, dispose or recycle