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Missoula Valley Water Quality District
(406) 258-4890
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Missoula Valley Water Quality District

Department: Water Quality District
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Water Quality District - Hazardous Waste

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What are they?

Image of a drawing of a can of paint thinner.Solvents are organic chemicals that dissolve other substances. Some examples are paint thinners, strippers, removers, gasoline additives, spot removers, rubbing alcohol, grease/stain removers and nail polish removers.

What Makes Them Hazardous?

Solvents are hazardous because they are typically flammable and may be poisonous when swallowed or absorbed through the skin and lungs. Some solvents are chlorinated and tend to persist in the environment. When solvents are disposed of improperly – in the trash, on the ground or down a drain – they could cause fires, or explosions in sewer systems, or may contaminate the soil, lakes, streams or ground water.

Safety Tips

Disposal Options


The Residential Disposal Guide is provided by the Missoula Valley Water Quality District as a public service and is not an endorsement of specific businesses, services or products. Any omissions or inaccuracies are unintentional. Please contact us with corrections or additions. Call businesses or agencies to confirm hours, locations and charges for services, if any. For information on disposal of items not listed, email or call the Water Quality District at 406-258-4890, M - F, 8 am to 5 pm.

Much of the information provided is from the Washington County, MN, Dept. of Public Health and Environment website.

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