Is pressure treated wood considered hazardous waste in California?

Treated wood has been considered hazardous for years under California law.

How do you dispose of pressure treated wood in California?

It must be disposed of at an authorized landfill – as of September 2021, a special variance is no longer required to haul and dispose of treated wood. California’s DTSC has a new treated wood fact sheet with info on proper storage and hauling procedures.

Is pressure treated wood hazardous waste?

Pressure treated (CCA) lumber has enough toxic chemicals to qualify as a hazardous waste. … Although it is illegal to incinerate CCA treated wood in all 50 states, it is often burned by individuals as scrap firewood, in campsites and construction sites, all the while releasing highly toxic chemicals into the air.

Is pressure treated wood illegal in California?

The California Department of Toxic Substances Control says the wood contains toxic chemicals and cannot be burned, dumped or even left on the ground for more than 90 days. It can only be legally transported by a licensed toxic hauler and taken only to a Class One Toxic Waste Site or out of state.

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Is wood hazardous waste?

Wood that is used in commercial and industrial applications is commonly treated with preserving chemicals. … Certain wood treatment chemicals can pose a risk to human health, and the environment, which is why the treated waste wood may be classed as a hazardous waste.

What is considered treated wood waste?

The California Department of Toxic Substances Control defines treated wood waste (TWW) as wood that has been treated with chemical preservatives. … Fence posts, sill plates, landscape timbers, pilings, guardrails, decking and grape stakes are all examples of chemically treated wood.

Where can I dispose of pressure treated wood in Sonoma County?


  • ACT Enviro. …
  • Annapolis Transfer Station (Disposal and Recycling) …
  • Central Disposal Site. …
  • Clean Earth Environmental Solutions, Inc. …
  • Clean Harbors Buttonwillow Landfill. …
  • Clean Harbors Environmental Services, Inc. …
  • Healdsburg Transfer Station (Disposal and Recycling) …
  • Republic Services/Global Materials Recovery Services.

How do I get rid of treated lumber?

Treated wood of all types can be most responsibly disposed of as follows: Homeowners engaged in small projects should take treated wood to their local landfill or transfer station and place it in the designated location (i.e., the non-clean wood pile).

How do you dispose of deck boards?

Only put small amounts of treated timber offcuts in your regular rubbish bin. Dispose of treated timber from larger household building or demolition jobs at a licenced landfill site. Dispose of treated timber sawdust correctly: double-bag large amounts and take them to a licensed landfill site.

How can you tell if wood is treated?

Treated timber is used by builders for things such as fencing, decking, outdoor furniture or cladding. It’s usually identifiable by a green tinge, although this can be difficult to see if the timber is old or weathered.

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Where can I dispose of pressure treated wood in Santa Cruz County?

The DTSC says that the treated wood must be transported to a Class 1 hazardous waste landfill, or to an authorized out of state landfill, for disposal.