• Press Release: Treated Wood Waste Now Considered Hazardous Waste

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    January 27, 2021
    For Immediate Release

    The Alternative Management Standard (AMS), which allows waste haulers to accept treated wood waste (TWW) from residential and commercial customers, expired on December 31, 2020 when Governor Newsome vetoed a bill to extend the statute (HSC 25150.7) and regulations (22 CCR 67386.1 et seq.).
    For this reason, beginning January 1, 2021, waste haulers in the County of Marin cannot accept TWW at their facilities, in their debris boxes, and in the garbage, recycling, or composting bins as treated wood is now considered hazardous waste.  Treated wood is wood typically used for foundation or landscape work and is treated with a chemical to resist insect attack and fungal decay.  Treated wood does not include painted or stained wood.  
    Marin Sanitary and Marin Resource Recovery are not able to take treated wood waste in any collection vehicles.  This includes in Marin County residents’ garbage, recyclables or green organics carts and debris dumpsters ordered by homeowners or contractors.  Currently, the Marin Household Hazardous Waste facility cannot accept TWW from residential or commercial generators. 

    “Unfortunately, due to space, training and budget constraints our facility is not able to take this material at this time.”  Said Kathy Wall, program manager at the Marin Household Hazardous Waste facility. “We are working with our partners, the County and San Rafael Fire Department, seeking further guidance from the state and will update our customers when we have more information.  For the time being we encourage people to hold on to their treated wood scraps until the State identifies a local solution.”
    If you must remove any TWW, read the DTSC factsheet to avoid any penalties and get a disposal estimate from an approved hazardous waste hauler. 
    The Department of Toxic Substances Control (DTSC) is working on some variances that could allow some facilities to receive TWW.  Until the variances are applied, DTSC suggests homeowners and contractors (generators of the hazardous waste) delay removing treated wood if possible or temporarily store the waste until the variances are in place. 

    Treated wood is readily available for purchasing at local lumber and home improvement stores.  It is important that residents and businesses realize this new disposal requirement when deciding whether or not to use treated wood products.  To find more information related to the topic, visit the DTSC website or the Marin Hazardous Waste Facility website

    Marin Sanitary Service (MSS) began in 1948 when together the families Garbarino, Segale, Zappetini, Marconi and Zanotti left San Francisco and ventured into the growing communities of Marin County to start a new garbage service. MSS currently services more than 33,000 residential and commercial accounts in Marin County and provides waste and recyclables removal and processing helping to keep these precious resources out of the landfill.  


    The Marin Household Hazardous Waste Facility (Marin HHW) is run by Marin Sanitary in partnership with the County of Marin and the San Rafael Fire Department.  MHHW accepts hazardous waste from residents and qualifying businesses throughout Marin County.  

    Justin Wilcock, Director of General Operations
    justin.wilcock@MarinSanitary.com, (415) 755-9528
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