The Southern Idaho Solid Waste District (SISW) accepts household hazardous waste (HHW) at several sites. Acceptance is dependent on the review of source and generation information. Transfer station and scale house attendants must inspect each load entering the facility for HHW. SISW has the right to refuse loads and/or require additional testing.
Used motor oil:
5 gallons per visit or 25 gallons per month. Acceptable in unmarked containers and must be transferred without spilling.
Antifreeze:
5 gallons per visit or 25 gallons per month. Acceptable in unmarked containers and must be transferred without spilling.
Flammable and Combustible Liquids:
5 gallons per visit or 25 gallons per month. The container must be left on site.
Corrosives:
Must be less than 2 gallons for acceptance at the transfer station; anything above that will need to be directed to the EHS Specialist.
Pesticide, Herbicide, or Fertilizer:
5 gallons per visit or 25 gallons per month. It must be in the original sealed container.
Mercury:
Thermometers, thermostats, and elemental mercury (small containers) are accepted in our HHW program. (Please see SISW Mercury Policy)
*We do not limit the HHW diversion program to these items. If it is a peculiar waste that has a potential hazard, please direct these customers to the EHS Specialist.
