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San Mateo, California · County government

County Health — Household Hazardous Waste Program

Find household hazardous-waste receiving programs, eligibility and appointments.

Source checked October 15, 2026[1]
Go to the official website (opens in a new tab)
Website address
www.smchealth.org

Opens this office’s own website. CountyWiki does not process applications, take payments or provide personal records.

Contact details & office locations ↓
San Mateo County resident HHW appointment program. Drop-off locations and instructions are supplied through the booking process; business waste uses a separate channel.[2]

Online services & information

These links were found on official source pages. Each service is handled by the office.

Make a free household HHW drop-off appointment (opens in a new tab)[3]Official instructions

Read the program rules, then choose an available appointment. A general county-health address is not the HHW receiving location.

Before you start

Availability · San Mateo HHW — appointment required
The San Mateo site lists Thursday, Friday and most Saturday mornings 8 am–noon; use the booking system for available slots and the assigned location. [4]
Availability · Program limit per vehicle / appointment
This program limits each vehicle/appointment to 10 gallons or 50 pounds. Make separate appointments and trips for additional waste; do not substitute another county’s 15 gallon limit. [5]

Fees

Fees are quoted only when a source document supports the amount and conditions.

Fee amounts have not been reviewed for this office.

Check the official website for its current fee schedule. No fee should be assumed to be free.

Forms & documents

Official forms and document pages for this office’s services.

Forms have not been reviewed yet. Visit the official website for the current forms and instructions.

Sources & last checked2 source pages · 6 citations

Sources were checked by an AI-assisted research process. A checked website does not mean every service or fee on it has been reviewed.

  1. [1] Household Hazardous Waste (HHW) Program – San Mateo County Health (opens in a new tab)

    San Mateo County / official waste program · Waste service — 06081
    Source reviewed October 15, 2026

    View supporting excerpt
    Household Hazardous Waste
  2. [2] Make an HHW Drop-Off Appointment – San Mateo County Health (opens in a new tab)

    County / official waste program · Waste service — 06081
    Source reviewed October 15, 2026

    View supporting excerpt
    Household Hazardous Waste (HHW) drop-off appointments are free for all San Mateo County residents.
  3. [3] Make an HHW Drop-Off Appointment – San Mateo County Health (opens in a new tab)

    County / official waste program · Waste service — Make a free household HHW drop-off appointment
    Source reviewed October 15, 2026

    View supporting excerpt
    San Mateo County residents can bring their HHW to the drop-off location for FREE!
  4. [4] Make an HHW Drop-Off Appointment – San Mateo County Health (opens in a new tab)

    County / official waste program · Waste service — San Mateo HHW — appointment required
    Source reviewed October 15, 2026

    View supporting excerpt
    We are open Thursdays, Fridays and most Saturdays from 8:00 AM to 12:00 PM at the San Mateo location.
  5. [5] Make an HHW Drop-Off Appointment – San Mateo County Health (opens in a new tab)

    County / official waste program · Waste service — Program limit per vehicle / appointment
    Source reviewed October 15, 2026

    View supporting excerpt
    There is a limit of 10 Gallons or 50 Pounds of Waste per Appointment.
  6. [6] Household Hazardous Waste (HHW) Program – San Mateo County Health (opens in a new tab)

    San Mateo County / official waste program · Waste service — San Mateo County HHW appointments
    Source reviewed October 15, 2026

    View supporting excerpt
    650-372-6200
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