Treated Wood

Special Instructions Take to the RRF

Reuse is best when possible. However, The City of Santa Cruz Landfill is a Waterboard approved disposal Facility for Treated Wood Waste.

Treated Wood Waste (TWW)

On August 31, 2021, Governor Newsom signed Assembly Bill 332 and the bill takes effect immediately. AB332 adopts new Alternative Management Standards (AMS) for treated wood waste that are codified in Health and Safety Code section 25230. As a result of the chaptering of the bill, all treated wood waste variances issued by DTSC since March 2021 are now inoperative and have no further effect. The variances are no longer necessary because they have been replaced by the AMS. The new AMS are similar to the rules that applied under the variance program, except that no variance is required.

Assembly Bill 332

Assembly Bill 332 (AB 332) restores the alternative management standards for treated wood waste. As a result variances are no longer needed for disposal facilities, handlers, and generators of treated wood waste. A link to the new statute language is found below:

Fact Sheet and Other Information

DTSC has developed a fact sheet to help generators and handlers understand what the new requirements are for the alternative management standards for treated wood waste. A link to the new fact sheet and list of landfills approved to accept TWW are found below:



Never Burn Treated Wood

Chemicals such as creosote are used when treating wood, which creates toxic ash and emissions when burned. These particles lodge in soil and groundwater and take many years to break down, so never burn wood if you think it has been treated.


Take Care With Sawdust

Avoid breathing in sawdust from treated wood, and do not add it to compost or scatter on the ground.

Ways to Reduce


Choose a Different Wood

Redwood and cedar are both naturally pest-resistant. Suppliers are also starting to offer more non-toxic treated wood options.

Ways to Reuse


Repurpose for New Project

Certain types of wood products can be reused in a variety of ways. Find out how to repurpose your wood product.