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Treated Wood Waste to be accepted at Bowerman Landfill only, beginning April 16.

OC Waste & Recycling (OCWR) has been granted a six-month variance waiver to allow the disposal of Treated Wood Waste (TWW) at one landfill site in Orange County, beginning April 16, 2021. This waiver comes after the Department of Toxic Substances (DTSC) banned disposal of TWW at California Landfills on January 1, 2021.

Frank R. Bowerman Landfill (Irvine) will accept TWW until September 18, 2021. This variance is eligible for a six-month extension if the County decides to apply for it. TWW will NOT be accepted at the Olinda Alpha Landfill (Brea). Please note that Frank R. Bowerman Landfill is only open to commercial/business customers.

Please review this notice and guidelines carefully prior to visiting OC Landfills with treated wood waste.


  • You MUST obtain and bring to the landfill a variance through DTSC.
  • You MUST complete the OCWR hazardous waste manifest prior to unloading.
  • Homeowners choosing to transport TWW yourself will need a variance. However, if you choose to hire a hauler securing the variance is the hauler’s responsibility.

Do NOT mix TWW with other waste.

  • Coated or painted TWW is NOT accepted for disposal.
  • If attempting to dispose of TWW at Alpha Olinda you will be turned away.

Advisory from the Department of Toxic Substances Control:
This notice is to advise you that in order to transport a hazardous waste, you must either be a registered hazardous waste transporter or have received a variance from the Department of Toxic Substances Control. Further information on becoming a hazardous waste transporter or obtaining a variance can be found on DTSC’s website at the following link: https://dtsc.ca.gov/.

About OC Waste & Recycling:
OCWR serves the County’s solid waste disposal needs by providing waste management services through a municipal landfill system and resource recovery facilities, protecting the local environment, investing in renewable energy enterprises and promoting recycling in order to ensure a safe and healthy community for current and future generations. The department manages one of the nation’s premier solid waste disposal systems, serving residents and businesses in the County’s 34 cities and unincorporated areas. OCWR’s three active landfills reflect environmental engineering at its best. Learn more by visiting the OCWR website at www.OCLandfills.com.

This article was released by OC Waste & Recycling.