SAN DIEGO — Another free Dump Day event is set to take place in San Diego County this month.

For those working on end-of-summer cleaning and clearing projects, set your calendar for Saturday Sept. 23.

The public is welcome to bring non-hazardous, unwanted household items to the Caltrans Santee Maintenance Facility at 8502 Railroad Ave.

Caltrans says staff will be on-site to accept approved waste and debris free of charge from 8 a.m. to noon, or until capacity is reached at the site.

San Diegans are asked not to bring hazardous waste like batteries, paint, oils or flammables. Other undesired items include e-waste like televisions, computers, microwaves, stereo equipment and electronics, or construction debris like concrete, dirt, asphalt and asbestos.

More information on prohibited items can be found here.

According to Caltrans, four mattresses and four tires separated from the rims will be accepted per household.

Officials have also encouraged motorists to ensure they properly secure and tarp all cargo loads ahead of traveling. Loads that are not tied down, enclosed, or secured by tarps or other means, may not be accepted, said Caltrans.

This dump day event is part of Governor Gavin Newsom’s Clean California initiative, a cleanup effort led by Caltrans to keep the Golden State’s roads and waterways litter-free while also promoting beautification efforts for public spaces.