Olinda Landfill

The Olinda Landfill (official name: Olinda Alpha Sanitary Landfill) is a landfill situated in Orange County, California, west of the northern portion of Chino Hills State Park in Carbon Canyon in Olinda neighborhood of Brea City.

Currently the landfill is scheduled to close in December 2021. Plans for postponement of landfill's closure by expansion of its area further into Carbon Canyon just west of Brea Olinda High School were cancelled in 1996 as Land and Water Conservation Fund decided to incorporate adjacent federal lands into Chino Hills State Park, rather than to dedicate it for landfill enlargement. After landfill closure the site will be landscaped to become part of Chino Hills State Park.