The City of Poway materials handling yard in Poway, CA, offers a Household Hazardous Waste (HHW) Collection Facility for safe disposal of various hazardous materials. Residents can drop off items such as used cooking oil, automotive fluids, batteries, electronic devices, and other household toxins without an appointment. The facility requires proof of residency and accepts waste in original containers, following transportation and weight limits to ensure safety. This service helps prevent illegal disposal of hazardous waste and promotes environmentally responsible handling of toxic substances.

Miramar Landfill is the City of San Diego's only active landfill, located in San Diego, CA. It handles nearly 910,000 tons of trash annually across its 1,500-acre site. The landfill has been in operation since 1959, currently using the West Miramar area opened in 1983. It processes organic materials such as food waste and vegetative waste from restaurants and other sources, diverting them to the Miramar Greenery where they are turned into mulch, compost, and wood chips. This facility also captures methane gas produced by waste decomposition to fuel electrical generators at the Metropolitan Biosolids Center, supporting environmental sustainability efforts.