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
Pleasanton Transfer Station 3110 Busch Rd. Pleasanton Safe Disposal Drop-off for a Fee Call for more information (925) 846-2042 Ext 124
Philip Services Corp. (PSC) 395 W. Channel Rd Benicia Safe Disposal Pick-up for a Fee
Ox Mountain Landfill 12310 San Mateo Rd Half Moon Bay Safe Disposal Drop-off for a Fee Call first for details.
North State Environmental (South San Francisco) 220 South Spruce Avenue
Suite 200
South San Francisco 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.
National Response Corporation (NRC) 1605 Ferry Point Alameda Safe Disposal Pick-up for a Fee
MG Remediation Inc. 26062 Eden Landing Road
Suite #2
Hayward Safe Disposal Pick-up for a Fee Offers asbestos abatement services
Kirby Canyon Landfill 910 Coyote Creek Golf Dr. Morgan Hill Safe Disposal Drop-off for a Fee 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.
Keller Canyon Landfill 901 Bailey Rd. Pittsburg Safe Disposal Drop-off for a Fee Closed to public.
Guadalupe Landfill (Rubbish Disposal Company) 15999 Guadalupe Mines Rd San Jose Safe Disposal Drop-off for a Fee Call first for details.
FERMA Corporation (Newark) Equipment Yard
6655 Smith Ave
Newark 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/
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
Cal Inc. 2040 Peabody Road
Suite 400
Vacaville Safe Disposal Pick-up for a Fee
Buttonwillow Landfill (Clean Harbors) 2500 West Lokern Road Buttonwillow Safe Disposal Drop-off for a Fee
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.
Bee Green Recycling & Supply (Asphalt Shingle Recyclers) 5900 Coliseum Way
(Inert Debris & Green Waste Recycling)
Oakland Safe Disposal Drop-off for a Fee Call 510-636-0852 for more information. Only incidentally with C&D loads (ex. deck, fence, framing) and separated within the load. Entire loads of TWW not accepted.
Bayview Environmental Services, Inc. 6925 San Leandro St Oakland Safe Disposal Pick-up for a Fee

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