Make an RDD drop-off appointment

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Drop-off appointments are free for all San Mateo County residents. Here are the steps you need to follow:

  1. Review the program rules and requirements and the list of items that are and are not accepted under the program.
  2. Choose a day, time and place that suits you with our online appointment system.
  3. Arrive at the drop-off location sent to you once you have finalized your meeting on the selected meeting day and time.
  4. Once at the drop-off point, stay inside your vehicle at all times. Our friendly and professional staff will unload your vehicle while you wait.

Get started by continuing below or click here to read our dating FAQ.

PROGRAM RULES AND REQUIREMENTS

How to prepare your HHWs for transport and safe management

Limit: 10 gallons or 50 pounds of waste per appointment

State regulations prohibit you from transporting more than 10 liquid gallons or 50 solid pounds of hazardous waste in your vehicle at one time. If you have more than 10 gallons or 50 pounds of waste, you can schedule multiple appointments.

If your waste exceeds this amount:

  • Estimate the amount of actual product in the container.
  • Make one appointment per vehicle for every 10 gallons or 50 pounds of hazardous waste.
  • Make additional appointments as needed.
  • Drop off 10 gallons on the first appointment, return home and collect the remaining 10 gallons, then return to the drop off location to dispose of your remaining trash on your second appointment.

There is no limit to the number of appointments you can make per event, but you cannot carry more than 10 gallons per vehicle load/appointment.

Limitation: the program cannot accept containers larger than 5 gallons

The program only accepts containers of 5 gallons or less. If you have waste in an oversized container larger than 5 gallons:

  • Get buckets with lids that are no larger than 5 gallons.
  • Transfer the waste from the large containers to the 5 gallon buckets and secure the lid.
  • Label 5 gallon pails with original product name and description.

IMPORTANT: KEEPING YOURSELF, YOUR FAMILY AND COUNTY EMPLOYEES SAFE. DO NOT MIX ANY WASTE.

Prepare for your appointment by following these steps

  • Keep your waste in their original sealed containers.
  • For waste in original containers with labels intact and legible, place items in boxes or crates – best to keep waste containers upright for safer transportation, avoiding spills. Do not use plastic bags.
  • For waste without a label, or not in the original containers, please tell county staff what it is, or attach a label indicating what it is.
  • Do not place items in plastic garbage bags.
  • For fragile or leaking containers, place them in a larger container such as a large bucket with a secure lid to safely contain the leaking material.
  • Place waste containers upright in cardboard boxes or sturdy trash cans.
  • You can line the box or bin with plastic – don’t use plastic bags alone.
  • Place the prepared waste in the back of your vehicle.
  • If you would like to keep your waste container (for example, a red gas can), make an appointment at a collection event in San Mateo.
  • Remove all other items not intended for disposal from the back of your vehicle.
  • Avoid bringing pets or plan to keep them safe.
  • REMEMBER: NEVER MIX WASTE. IT’S DANGEROUS.

What to expect during your appointment

The staff will greet you, carry out a brief survey and unload the waste from your vehicle for you.

  • Stay inside your vehicle
  • Turn off your engine
  • Turn off all smoking materials

Still have questions ?

Read our program FAQs or email us at hhw@smcgov.org or call (650) 372-6200.

SELECT YOUR DAY, TIME AND LOCATION OF RDD DEPOSIT

IMPORTANT NOTICES: Household Hazardous Waste (HHW) events may be canceled due to poor air quality. RDD drop-off events are held in Daly City, East Palo Alto, Foster City, Half Moon Bay, La Honda, Menlo Park, Pacifica, Portola Valley, Redwood City, San Mateo, and South San Francisco.


Register for upcoming notices of household hazardous waste drop-off events.

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