San Lorenzo, CA – On Sunday, September 20, 2026, the Oro Loma Sanitary District hosted a one-day Household Hazardous Waste (HHW) drop-off event at its San Lorenzo facility, offering Alameda County residents a safe, convenient, and free way to dispose of household hazardous materials. In partnership with the Alameda County Environmental Health Department, Clean Harbors, Waste Management, and StopWaste, the event welcomed more than 500 vehicles at 2600 Grant Avenue between 9 a.m. and 1 p.m.

"Our goal was to build on the success of our 2017 HHW collection event, and our staff was excited to bring this vital service back to the community,” said General Manager Jimmy Dang. "Thanks to our supportive County partners, who helped coordinate this high-demand event, residents now have a safe and responsible way to dispose of household hazardous materials.”

The Oro Loma Sanitary District hosted an HHW event at Arroyo High School in 2017 for nearly 200 community members. The 2026 event expanded by bringing HHW collection to Oro Loma’s facility, giving residents a convenient way to properly dispose of materials that shouldn't go in household trash, recycling, or compost.

“We had exceptional participation in this year’s HHW event,” stated Board President Shelia Young. “It required robust partnerships and coordination to facilitate an event of this magnitude, and we express our gratitude to all who contributed to its success.”