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
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/
Safety Kleen Systems (Rohnert Park) 5750 Commerce Blvd Rohnert Park 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.
Safety Kleen Systems (Sacramento) 6000 88th Street Sacramento 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.
Bayview Environmental Services, Inc. 6925 San Leandro St Oakland Safe Disposal Pick-up for a Fee
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.
Restec Contractors Inc. 22959 Kidder Street Hayward Safe Disposal Pick-up for a Fee Visit website or call for information on specific materials accepted
Sonoma County Transfer Station (Sonoma) 4376 Stage Gulch Road Sonoma Safe Disposal Drop-off for a Fee DTSC variance 3/11/21. Call first for details.
RB Construction 893 Boggs Terrace Fremont Safe Disposal Pick-up for a Fee Offer soil remediation services
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.
MG Remediation Inc. 26062 Eden Landing Road
Suite #2
Hayward Safe Disposal Pick-up for a Fee Offers asbestos abatement services
Ox Mountain Landfill 12310 San Mateo Rd Half Moon Bay Safe Disposal Drop-off for a Fee Call first for details.
Conflo Services Inc. 25670 Nickel Place Hayward Safe Disposal Pick-up for a Fee
Clean Harbors 1021 Berryessa Road San Jose Safe Disposal Pick-up for a Fee Commercial quantity
Restoration Management Company 4142 Point Eden Way Hayward Safe Disposal Pick-up for a Fee
Ramos Environmental 1515 South River Road West Sacramento Safe Disposal Pick-up for a Fee
Kirby Canyon Landfill 910 Coyote Creek Golf Dr. Morgan Hill Safe Disposal Drop-off for a Fee Call first for details.
Cal Inc. 2040 Peabody Road
Suite 400
Vacaville Safe Disposal Pick-up for a Fee
Philip Services Corp. (PSC) 395 W. Channel Rd Benicia Safe Disposal Pick-up for a Fee

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