Toxics
- Common examples of toxics
- Household Toxics Facility
- Community Toxics Collections
- Toxics Rover Pickup
- Business toxics disposal
Motor Oil
Special Wastes
- Electronics
- Fluorescent lamps/CFLs
- Household batteries
- Medications/pharmaceuticals
- Mercury thermostats
- Paint
- Syringes/needles
- Treated wood
Related topics
Treated wood

Resources for treated wood recycling
Department of Toxics Substances Control Board
California Department of Resources Recycling and Recovery (CalRecycle)
Treated wood is banned from disposal in the garbage.
Sonoma County Refuse Disposal Sites do not accept treated wood
for disposal. All wood treated with preservatives is subject to California's
Hazardous Waste Control Law and may only be accepted at approved facilities.
Treated wood refers to dimensional lumber treated with chemicals that protect wood from rotting due to insects and microbial agents. Chemicals include arsenic, chromium, copper, creosote and pentachlorophenol which are hazardous to humans and the environment. Identification is not difficult as long as you know the characteristics.
How to identify treated wood
Look on the surface of the wood for small slits. These are numerous, staggered
along the board and look like staple slits. They help with deeper chemical
penetration and retention. Most pressure-treated wood has these slits.
Examine the wood especially the edges, for a green tint. When the lumber
is young, this will be the most identifiable sign of pressure-treated wood.
As it ages it will fade to a dull gray color.
Examples of pressure treated wood preservative include:
- CCA (Chromated copper arsenate)
Common uses: sill plates, trusses, joists
- Creosote
Common uses: railroad ties
- Pentachlorophenol
Common uses: phone poles, some fence posts
- Copper based such as alkaline copper quaternary (ACQ) and copper boron azole (CBA)
Common uses: decking, landscape timbers
- Borates
Common uses: sill plates, trusses, joists
- Other wood preservatives
Depending on the type of preservative, you may be able to dispose of your treated wood waste at one of the following facilities.
1. Drop-off for treated wood: for commercial loads only
M&M Services, Inc./Windsor Materials Recovery Facility
mmservicesinc.com
590 Caletti Avenue, Windsor
(877) 698-8473
2. Drop-off/pick up for treated wood: for residents & businesses
Altamont Landfill & Resource Recovery Facility
10840 Altamont Pass Road, Livermore
(925) 455-7300
Drop-off & fee: call Sales Department for quote.
Global Material Recovery Services (Construction & Demolition
Recycling Facility)
3899 Santa Rosa Avenue, Santa Rosa
(707) 585-0511 / (707) 585-8246
Drop-off & fee.
Recology Hay Road Landfill
6426 Hay Road, Vacaville
(800) 208-2371
Drop-off & fee.
Redwood Empire Recycling Facility
3400 Standish Avenue, Santa Rosa
(707) 586-8249 / (707) 586-8247
Drop-off, pickup & fee.
