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
Keller Canyon Landfill 901 Bailey Rd. Pittsburg Safe Disposal Drop-off for a Fee Closed to public.
FERMA Corporation (Newark) Equipment Yard
6655 Smith Ave
Newark Safe Disposal Pick-up for a Fee
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)
Safety Kleen (San Jose) 1147 N 10th Street San Jose Safe Disposal Pick-up for a Fee
Newby Island Landfill & Resource Recovery Park 1601 Dixon Landing Rd. Milpitas Safe Disposal Drop-off for a Fee Call first for details.
Stericycle (Hayward) 30542 San Antonio St Hayward Safe Disposal Pick-up for a Fee
Zanker Road Landfill 705 Los Esteros Road
(north of Zanker Road, one mile north of Zanker and Highway 237)
San Jose Safe Disposal Drop-off for a Fee DTSC variance received 3/11/21. Call first for terms and conditions.
North State Environmental (South San Francisco) 220 South Spruce Avenue
Suite 200
South San Francisco 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/
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
Kirby Canyon Landfill 910 Coyote Creek Golf Dr. Morgan Hill Safe Disposal Drop-off for a Fee Call first for details.
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
Guadalupe Landfill (Rubbish Disposal Company) 15999 Guadalupe Mines Rd San Jose Safe Disposal Drop-off for a Fee Call first for details.
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
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.
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.

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