Treated Wood Illegal in Garbage & Drains Special Instructions Note: This item should not be placed in a C&D debris box. Mt. Diablo Resource Recovery is now accepting Treated Wood Waste. Please review TWW acceptance procedures and the required Treated Wood Waste Customer Form. Berkeley Transfer Station now accepting treated wood waste. Please review TWW acceptance procedures and the required TWW Disposal Form. *Treated Wood Waste Information from Department of Toxic Substances Control (DTSC) *Treated Wood Waste Disposal Sites *Treated Wood Waste Handlers 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.