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Household hazardous waste drop-off in Waukesha County, Wisconsin

In Waukesha County, programs may be called HHW, household chemical waste collection — the listings below use each agency's own name.

3 listings in Menomonee Falls, Muskego, Waukesha. A county site may be open only to residents of that county or of member cities.

Call ahead. Hours, fees, residency rules, appointments and accepted materials change. Check the official page or call before you go. Never mix chemicals, and keep products in their original containers. Every listing links to its official source.

Listings in Waukesha County

• Menomonee Falls Household Hazardous Waste Collection Site

  W124N9451 Boundary Road, Menomonee Falls, WI

  • Permanent drop-off
  • Paint
  • Used motor oil
  • Antifreeze
  • Household batteries
  • Fluorescent bulbs / CFLs
  • Pesticides & garden chemicals
  • +4 more

  Hours: Monday and Wednesday, 11:00 a.m.–6:00 p.m., and Saturday, 8:00 a.m.–2:00 p.m. Open January–December.

  Source: Milwaukee Metropolitan Sewerage District · checked November 9, 2026

• Muskego Household Hazardous Waste Collection Site at GFL Emerald Park Landfill

  W124S10629 South 124th Street, Muskego, WI

  • Permanent drop-off
  • Other household hazardous waste

  Hours: The first and third Saturdays, 8:00 a.m.–noon, February–November. The last 2026 date was Saturday, November 7, 2026; the site is then closed for the winter.

  Source: Waukesha County · checked November 9, 2026

• Waukesha Household Hazardous Waste Collection Site at UWM-Waukesha

  1500 N. University Drive, Waukesha, WI

  • Permanent drop-off
  • Other household hazardous waste

  Hours: The second and fourth Saturdays, 8:00 a.m.–noon, March–November. The last 2026 date before the winter closure is Saturday, November 14, 2026, 8:00 a.m.–noon.

  Source: Waukesha County · checked November 9, 2026

More household hazardous waste listings in Wisconsin