HazWaste Days Events

What is HazWaste Days?

Household Hazardous Wastes are basically hazardous wastes generated by normal household activities (e.g., routine house and yard maintenance). Some cities have facilities that allow for year-round collection of these materials, often operated by municipal or private landfills. Because we care about proper disposal of these chemicals but do not have a facility like this in Missoula, the Missoula Valley Water Quality District hires a contractor to come and collect Missoula’s household hazardous waste each year. We have done this since 1993 (with the exception of 2017). By law, we can only accept household hazardous waste (or conditionally exempt waste*).

When is it?

We will NOT be doing a collection event this year (2021). We are currently working out the details on a year-round collection facility. There are some construction/legal hurdles to overcome, but anticipate and opening date late spring, early summer 2022. More information on this facility will be posted here as we get closer to an opening date.
In the interim please take a look at our Year-Round Option Guide
Thank you to everyone that participated in our 2020 collection event. It was a huge success.


It is very expensive to properly dispose of these hazardous materials. This event is largely covered by the District and a combination of city and corporate donations. A small fee is also required of participants to further help defray costs. City and county fees and property taxes do not cover the costs of this event.
* Waste must have been generated from a household that: a. Generates less than 220 lbs (approx 26 gallons) of hazardous waste per 40 CFR 261 or 2.2 lbs of acutely hazardous waste per 40 CFE 261.31, 261.32, or 261.33 (e) in any month b. Has not accumulated more than 2,200 lbs of hazardous waste or 220 lbs of acutely hazardous waste.