Guide for Reuse, Repair, Recycling, and Safe Disposal
for Alameda County, Contra Costa County, and the City of Palo Alto
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Wood - Treated

Treated wood is wood treated with a chemical for the purpose of resisting decay. Examples include pressure-treated dimensional lumber, creosote-treated railroad ties, and telephone poles.

Household Hazardous Waste

This item should never be put in a curbside bin. For more information visit our household hazardous waste page.

Pressure treated, preserved wood, or treated wood waste (including the sawdust), referred to as TWW, has preserving chemicals like arsenic, creosote, and copper. When outdoor structures built with preservative treated wood – such as decks, gazebos, fences and retaining walls – are demolished and discarded, the wood is considered TWW.

DTSC lists the current Transfer Facilities that accept TWW across the state. The CA Water Board lists Landfills that accept TWW.

TWWDisposal.org has fact sheets and outreach materials on the appropriate handing, disposal (landfills that accept TWW), and other management of treated wood waste for residents and for facilities that may receive or handle treated wood waste. Spanish translation is enabled on their website.

Painted, engineered, stained, lacquered, plywood/composite, and wood painted with "copper green" may go in the garbage.

Vendors

Vendor Address City Destination Disposal Method Notes
National Response Corporation (NRC) 1605 Ferry Point Alameda Safe Disposal Pick-up for a Fee
Sonoma County Transfer Station (Annapolis) 33549 Annapolis Rd Annapolis Safe Disposal Drop-off for a Fee DTSC Variance 3/11/21. Call first for details.
Philip Services Corp. (PSC) 395 W. Channel Rd Benicia Safe Disposal Pick-up for a Fee
Department of Toxic Substances Control (DTSC) Berkeley Regional Office
700 Heinz Ave; Suite 200
Berkeley Safe Disposal Free Mail-in Information Link: https://dtsc.ca.gov/toxics-in-products/treated-wood-waste/
Berkeley Transfer Station 1201 2nd St. Berkeley Safe Disposal Drop-off for a Fee Special Handling: Treated Wood Waste (must be kept separate from other materials and placed in a designated bin for disposal), charged at the Refuse Base Rate and the Environmental Compliance Fee.
Buttonwillow Landfill (Clean Harbors) 2500 West Lokern Road Buttonwillow Safe Disposal Drop-off for a Fee
RB Construction 893 Boggs Terrace Fremont Safe Disposal Pick-up for a Fee Offer soil remediation services
Sonoma County Transfer Station (Guerneville) 13450 Pocket Drive Guerneville Safe Disposal Drop-off for a Fee DTSC variance 3/11/21. Call first for details.
Ox Mountain Landfill 12310 San Mateo Rd Half Moon Bay Safe Disposal Drop-off for a Fee Call first for details.
Restec Contractors Inc. 22959 Kidder Street Hayward Safe Disposal Pick-up for a Fee Visit website or call for information on specific materials accepted
MG Remediation Inc. 26062 Eden Landing Road
Suite #2
Hayward Safe Disposal Pick-up for a Fee Offers asbestos abatement services
Conflo Services Inc. 25670 Nickel Place Hayward Safe Disposal Pick-up for a Fee
Restoration Management Company 4142 Point Eden Way Hayward Safe Disposal Pick-up for a Fee
Stericycle (Hayward) 30542 San Antonio St Hayward Safe Disposal Pick-up for a Fee
Sonoma County Transfer Station (Healdsburg) 166 Alexander Valley Road Healdsburg Safe Disposal Drop-off for a Fee DTSC variance 3/11/21. Call first for details.
Kettleman Hills Landfill 35251 Old Skyline Road
P.O. Box 471
Kettleman City Safe Disposal Drop-off for a Fee DTSC variance received.. Call first for details as many landfills have specific waste acceptance requirements and some require that you have a pre-approved waste profile.
Altamont Landfill (WM, Inc.) 10840 Altamont Pass Rd. Livermore Safe Disposal Drop-off for a Fee DTSC variance received. Call or email them asking for the Treated Wood Waste (TWW) Form and the how-to TWW email. Do leave your email for them to get back to you. Customers (anyone wanting to drop-off TWW) will need to register for a new Express account with www.WMSolutions.com, complete and attach the form, and attach a copy of your variance. Note: Residents that hire a contractor to work on their home (e.g., fence repair or deck replacement) do not require a TWW variance provided that the contractor transports the TWW for disposal. Request a price quote.
Vasco Road Landfill & Recycling Drop-off 4001 N. Vasco Rd. Livermore Safe Disposal Drop-off for a Fee Call or email asking for TWW form and instructions before you go. Call Patricia Moreno 209-547-7590 and leave a vm with your email to be sent details. All Republic Services landfills require generators with variance to create an new Express Waste profile, complete and attach the Republic TWW form, and also attach a copy of the generator's variance. Pricing $125-$150/ton; minimum charge per job is $500. Resident min. fees are $400-$500 for less than 50lbs. (4/1/2021)
Newby Island Landfill & Resource Recovery Park 1601 Dixon Landing Rd. Milpitas Safe Disposal Drop-off for a Fee Call first for details.
Kirby Canyon Landfill 910 Coyote Creek Golf Dr. Morgan Hill Safe Disposal Drop-off for a Fee Call first for details.

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