Before you start, find, remove, and safely dispose of all hazardous materials in the building.
- ensure worker and occupant safety
- comply with state and federal law
- comply with local health department and air district requirements
- avoid future liability
- protect the environment
Step 1: Inspect!
Prior to demolition, ALWAYS inspect a structure for hazardous materials. A trained professional should inspect any pre-1980s structure (including residential), as well as medical, dental, veterinary, laboratory, vehicle service, industrial buildings, and other buildings where occupants may have left behind hazardous materials.
Look for hazardous wastes in the following locations:
IN BUILDINGS AND STRUCTURES OF ANY AGE:
- Chemically treated wood (arsenic, chromium, copper, creosote, and/or pentachlorophenol)
- Pressure-treated dimensional lumber
- Creosote-treated railroad ties (outdoor landscaping)
- CCA (chromated copper arsenate)-treated wood
- Ceilings and floors (asbestos)
- Textured ceilings
- Ceiling panels and tiles
- Resilient flooring – vinyl floor tiles and backing on vinyl or linoleum sheet flooring
- Mastic adhesive
- Insulation (asbestos)
- Cement-based insulation (sheets, shingles, and pipes)
- Furnace, water heater, and heating duct blanket or tape insulation
- Roofing shingles and mastic (asbestos)
- Light ballasts (PCBs or DEHP)
- Light bulbs and lamps (mercury)
- Fluorescent tubes and bulbs
- High-intensity discharge (HID) bulbs
- Neon tube signs and lamps
- Wall thermostats (mercury)
- Smoke detectors (radioactivity)
- Glow-in-the-dark EXIT signs (radioactivity)
INDUSTRIAL OR INSTITUTIONAL STRUCTURES:
- Industrial electrical switches and relays (mercury)
- Medical/dental/veterinary (mercury)
- Medical/dental equipment
- Laboratory fume hoods
- Sewer lines
- Schools (mercury)
- Laboratory fume hoods
- Gym flooring
IN ALL BUILDINGS BUILT/REMODELED PRIOR TO 1980:
- Paint (lead)
- Caulk and sealants (PCBs)
- Electrical transformers and capacitors (PCBs)
- Industrial or institutional materials (PCBs)
- Applied dried paints, coatings, or sealants
- Felt or fabric products such as gaskets
- Sound-deadening materials
- Molded rubber parts
Step 2: Protect!
Segregate hazardous wastes from other construction debris. Consider hiring a professional to segregate the waste. Take precautions, using personal protective equipment and following material-specific guidelines, to protect yourself, building residents, neighbors, and workers from contaminated dust and other potentially harmful releases. Store hazardous wastes in closed containers with proper labeling and secondary containment, if required.
Step 3: Dispose!
Dispose of wastes according to law, to limit liability and protect the environment
Depending on the substance, you may need to dispose of the material in accordance with state and federal hazardous waste disposal laws. If hazardous materials are simply disposed of with other construction debris, they can be released into the environment at the construction site, during transit, or even eventually from the landfill site. Willful or negligent violation of hazardous waste laws can result in civil or criminal penalties.
Some wastes may require disposal in a hazardous waste landfill. If the material can be recycled, you can seek a nearby recycling site using the earth911 form on http://baywise.org.
Do-It-Yourselfers / Homeowners
Homeowners can use household hazardous waste (HHW) programs to dispose of hazardous waste from their own home. Be sure to call in advance before delivering any hazardous waste to your local HHW facility. These facilities have certain limitations, therefore a homeowner should consult with HHW Program staff regarding the wastes and quantities.
For information about HHW alternatives, see:
- For HHW agencies and locations throughout the San Francisco Bay Area
- The Department of Toxic Substances Control (DTSC) provides a list of all HHW agencies throughout California
- QuitDay – Greener Planet: A World Without Cigarettes
Contractors and Property Managers
The U.S. EPA defines classes of hazardous waste generators and provides a summary of requirements for each class, available here.
Generators of Very Small Quantities
If the amount of hazardous waste being generated by a contractor or property management firm is 27 liquid gallons or 220 solid pounds or less, it may qualify as “conditionally-exempt”. Contractors and property management firms would then qualify to use Conditionally-Exempt Small Quantity Generator (CESQG) Programs for disposal. CESQG Programs are operated in conjunction with HHW Programs.
For information about CESQG Programs, see:
Generators of Larger Quantities
In general, contractors and property management firms are not allowed to use HHW programs and are required to hire a licensed hazardous waste hauler. A list of California licensed hazardous waste haulers is available here. A list of California licensed hazardous waste landfills is available here.
Nothing in this document relieves the person conducting the demolition and property owner from responsibility for compliance with federal, state, and local laws and regulations.
About This Site
The information provided on this website has been reviewed by representatives from the following agencies:
- Bay Area Air Quality Management District – Air Toxics Inspection Group
- Bay Area Pollution Prevention Group
- California Department of Public Health – Childhood Lead Poisoning Prevention Branch
- California Department of Public Health – Occupational Health Branch
- California Department of Resources Recycling and Recovery
- California Department of Toxic Substances Control
- San Francisco Bay Regional Water Quality Control Board
- San Francisco Department of Environment
- San Francisco Estuary Partnership