There are three landfills in Orange County.  The closest landfill to Lake Forest that is open to the public is the Prima Deshecha Landfill.  

Prima Deshecha Landfill
32250 La Pata Avenue
San Juan Capistrano, CA 92675

7 am – 4 pm Mon-Sat (Orange County residents only)
9 am – 3 pm Tues-Sat (Household Hazardous Waste Collection)
Closed on Holidays and rainy days

Click here to learn more about what kind of waste is acceptable and unacceptable to take to an Orange County landfill.