No Treated Wood Waste Beginning January 1, 2021

Notice To Solid Waste Customers: No Treated Wood Waste Beginning January 1, 2021

Effective January 1, 2021, in response to expiring legislation, the California Department of Toxic Substances Control (DTSC) will no longer allow the landfill disposal of treated wood waste (TWW). This means that transfer stations and rural container drop-off sites may no longer accept TWW for disposal.

Treated wood, or pressure-treated wood, has been treated with a chemical preservative to protect it from bugs, fungi and environmental conditions that can lead to decay. Wood fencing and decking are the most common treated wood waste materials generated by homeowners. Other examples of treated wood are creosote-treated lumber that is used for guardrail posts, railroad ties and pilings. Indicators that wood has been treated include:

  • An ink stamp on the wood or an end tag; or
  • Small, closely spaced cuts that resemble staple holes on the surface of the wood.
  • Surface-applied coatings such as paint, varnish, and oil stain are not considered chemical preservatives. Painted wood will continue to be accepted at HWMA’s Hawthorne Street Transfer Station.

Beginning Jan. 1, 2021, treated wood waste must be managed as hazardous waste. Transfer station personnel will perform load checks and have been instructed by the State to reject any treated wood waste.

Humboldt Waste Management Authority’s (HWMA) Hazardous Waste Facility will accept TWW beginning January 2, 2021. Residential customers may bring up to 100 pounds per day. Sections must be less than 3 feet in length with nails, staples, screws and other fasteners removed whenever feasible to do so.

Small businesses are encouraged to call HWMA at 441-2005 for information on volume restrictions and costs.

For more information, visit California’s DTSC’s website:
www.dtsc.ca.gov/toxics-in-products/treated-wood-waste-information-and-fact-sheets/

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