Identifying Hazardous Waste

Items such as solvents, paint/stain/varnish, yard/garden products (including pesticides and herbicides), batteries, automotive products (including gasoline and oil), fluorescent light tubes, TVs, and computer monitors are considered hazardous waste. 

To determine if something is hazardous, examine the label for one of the following signal words:

• Caution
• Danger
• Poison
• Warning
• Corrosive
• Flammable
• Explosive
• Oxidizer
• Irritant
• Environmental Hazard

If the item's label contains one or more signal words, it is hazardous waste and is accepted at the collection sites listed below. Do not throw hazardous waste in with your trash or recycling.

Collection of Household Hazardous Waste (HHW)

• Collection Sites
  Eight HHW collection sites are conveniently located around town for residents* to properly manage their household hazardous waste. Residents may also take materials to the permanent collection facility at the Ada County Hidden Hollow Sanitary Landfill. 

  *Business waste is not accepted at the collection sites. Businesses must use the Ada County Permanent Collection Facility.

• Ada County Permanent Collection Facility
  Ada County residents may take household hazardous waste to the permanent collection facility located at the Hidden Hollow Landfill off Seaman's Gulch Road. The facility is open Fridays and Saturdays from 8:00 a.m. to 6:00 p.m. Call (208) 577-4736 for details.

Prohibited Materials

Explosives, ammunition, radioactive items, and biomedical waste are not accepted at hazardous waste collection sites. Call (208) 384-3901 or (208) 577-4736 for information on proper disposal of prohibited materials.

Needles, sharps, and syringes

These items must be placed inside of a protective container for disposal in your trash cart. See our Sharps Disposal page for information on the proper disposal of sharps.