Ada County Collection Facility / Hidden Hollow Landfill: 10300 Seaman’s Gulch Road, Boise. Open Friday and Saturday 8 a.m. to 6 p.m. Closed holidays.
Boise City – Household Hazardous Waste Calendar
Mobile Collection Sites: Open noon to 7 p.m. | Closed Holidays.
Boise City – Collection Sites
Collection sites are closed on New Year’s Day, Memorial Day, Fourth of July, Thanksgiving and Christmas. Please do not leave items at a site when a collection vehicle is not present. Leaving toxic chemicals unattended at a collection site creates hazardous conditions and is a violation of local and state ordinances.