Household Hazardous Waste

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The City of Thousand Oaks operates a permanent, state-of-the-art Household Hazardous Waste (HHW) Facility, open by appointment for residents of Thousand Oaks & unincorporated Ventura County (eg. Lake Sherwood, Santa Rosa Valley, El Rio, Saticoy, Piru). Residents of other cities are advised to check their respective city's website for information on how to dispose of household hazardous waste where they live. Links to other cities' HHW programs are listed at the bottom of this page.

Hours of operation: Fridays & Saturdays 9:00AM to 1:00PM (except most major holiday weekends)
Location: 2010 Conejo Center Drive, Newbury Park, CA 91320

Appointments are required for HHW drop-offs. Please use the tool below to make or cancel an appointment. To change an appointment, please cancel your existing appointment and book a new appointment.

2021 Holiday Closure Dates:

  • Christmas Weekend: December 24-25, 2021
  • New Year's Weekend: December 31, 2021-January 1, 2022

2022 Holiday Closure Dates:

  • New Year's Weekend: Jan 1, 2022
  • Martin Luther King Weekend: Jan 14-15, 2022
  • President's Day Weekend: February 11-12, 2022
  • Memorial Day Weekend: May 27-28, 2022
  • Independence Day Weekend: July 1-2, 2022
  • Labor Day Weekend: September 2-3, 2022
  • Veterans Day Weekend: November 11-12, 2022
  • Thanksgiving Weekend: November 25-26, 2022
  • Christmas Weekend: December 23-24, 2022
  • New Year's Weekend: December 30-31, 2022

Use the "What Goes Where" tab in the tool below to check if a material is accepted at the City's HHW Facility or scroll down on this page to view a brief list of materials accepted.

Use the "Need Help?" tab if you believe you are eligible to participate in a hazardous waste drop-off event but encounter issues searching for your address. City staff will address the issue in a timely manner. For all other questions, please dial the City of Thousand Oaks Sustainability Division at 805-449-SAVE (7283).

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Leftover household products that contain corrosive, toxic, ignitable, or reactive ingredients are considered to be “Household Hazardous Materials” or “HHW.” Products such as cleaners, oils, batteries, fluorescent lights and pesticides require special care when you dispose of them. See also our dedicated pages for motor oil and filter recycling as well as paint recycling.

Click this link for Medication and Sharps disposal

Thousand Oaks Businesses: Click here for information on our Small Business Hazardous Waste Disposal Program.

How to Participate

Make a Free Appointment (required)

Scheduling an appointment to drop off your material is easy - just follow these 3 steps:

  • Step 1 - Review the list of accepted materials (below) to see if you have hazardous waste that qualifies for the program.
  • Step 2 - Verify that you are a Thousand Oaks or unincorporated Ventura County resident. (You can use the County's "County View" website to check your jurisdiction). If you do not live in Thousand Oaks or unincorporated parts of Ventura County, you will not be able to participate. Please check your city or county website for hazardous waste collection programs in your area.
  • Step 3 - Schedule an appointment at the top of this page (Required). Drop off appointments are available on Fridays and Saturdays between 9:00AM and 1:00PM, except for most major holiday weekends. A confirmation e-mail will be sent following successful registration.

Online registration closes at 4 p.m. the day prior to the disposal date. (In other words, 4 p.m. on Thursday for Friday drop off and 4 p.m. Friday for Saturday drop off. Appointment times are limited and available on a first-come, first-served basis.

The Household Hazardous Waste Facility will not cancel events in the event of rain or inclement weather.

For questions about the Hazardous Waste Facility, e-mail, or call (805) 449-SAVE(7283).

On the day of your appointment:

  • Carefully transport your hazardous waste to the collection site. 
  • Arrive promptly at your scheduled time.
  • Bring a valid ID or utility bill to verify residency.
  • When you arrive at the Household Hazardous waste facility, REMAIN IN YOUR VEHICLE while a technician unloads the hazardous materials from your vehicle.

Transportation Guidelines:

  • State law prohibits transportation of more than 15 gallons or 125 pounds of hazardous waste at any one time in your vehicle.
  • Never mix chemicals!
  • Place loose materials in sturdy, non-leaking containers with secure lids (original containers are preferred).
  • Please note: containers will not be returned (except for used oil collection containers).
  • Please pack your waste properly to prevent tipping or spilling of the waste during transportation. 

Material Reuse Program


The Material Reuse Program operates alongside the City's weekly Household Hazardous Waste collection and is located at the HHW Facility at 2010 Conejo Center Drive in Newbury Park. Appointments are not needed to shop at the City's Material ReUse Store.

Household Hazardous Waste Material Guidelines

Materials accepted at the Household Hazardous Waste Facility during regular operating hours:

In the house

  • Aerosol sprays
  • Batteries
  • Fire extinguishers
  • Fluorescent light bulbs and tubes
  • Holiday light strands
  • Liquid cleaners
  • Medical needles (sharps)
  • Mercury-containing items
  • Nail polish and remover
  • Oven cleaners
  • Polishes
  • Used Frying Oil
  • Electronics

In the workshop

  • Glues and adhesives
  • Paint (all kinds)
  • Paint thinners
  • Photo chemicals
  • Solvents
  • Wood preservatives and finishes

In the garage

  • Antifreeze
  • Auto batteries
  • Brake fluid
  • Engine cleaners
  • Gasoline
  • Oil and oil filters
  • Waxes and polishes
  • Road and Marine Flares

In the yard

  • Fertilizers
  • Fungicides
  • Pesticides
  • Rodenticides
  • Pool chemicals
  • Propane cylinders
  • Weed killers

*State law restricts the transportation of more than 15 gallons or 125 pounds per vehicle.

Unaccepted Materials:

  • Biological waste
  • Business waste
  • Radioactive materials
  • Medications
  • Controlled substances
  • Explosives/ammunition
  • Tires
  • Appliances (anything with freon)

Battery Disposal

City Hall green battery  bin low res

Household batteries of all sizes (AAA, AA, C, D, button cell, 9 Volt, etc.), both rechargeable and single use are considered hazardous waste when discarded. All household batteries can be recycled at the City's Household Hazardous Waste Facility (see above) or at the following drop-off locations.

Warning: Lithium button batteries are very dangerous to children and pets. Improper handling or storage may result in death or injury.

Batteries are also fire hazards. Click here [PDF] to read about 9 Volt battery safety.

Disposal tips for the community battery disposal bins listed below: No plastic bags. Deposit used alkaline and rechargeable household batteries only. Please tape contacts of lithium batteries. No automotive or motorcycle batteries.




Borchard Community Park 190 Reino Road Front Entrance
Dos Vientos Community Center 4801 Borchard Road Front Lobby (next to front desk)
Goebel Senior Center 1385 E. Janss Road Front Lobby
Grant R. Brimhall Library 1401 E. Janss Road Children's Entrance & Adult Entrance
Newbury Park Library 2331 Borchard Road Front Entrance
Thousand Oaks City Hall 2100 Thousand Oaks Blvd. Front Entrance
Thousand Oaks Community Center 2525 N. Moorpark Road Front Entrance
Thousand Oaks Transportation Center 265 S Rancho Road Lobby










Please note: Automotive and industrial batteries are not accepted at these drop locations. Automotive and industrial batteries can be recycled at the HHW Facility.

Fluorescent Light Disposal and Broken Bulb Handling

You may bring any size or type of fluorescent and LED bulbs to the City's Hazardous Waste Facility.

Broken fluorescent bulbs require immediate attention to minimize exposure to mercury vapor contained in the glass tubing. If a fluorescent bulb breaks in your home, view the EPA's guidelines on how to respond properly.

Additional Resources

For additional information and curbside recycling information, visit the Residential Curbside Collection page.