Household Hazardous Waste DropoffHHW Dropoff
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St. Louis Household Hazardous Waste North County Facility

4100 Seven Hills Drive, Florissant, MO 63033

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. Open the official source page.

Type
Permanent drop-off
Address
4100 Seven Hills Drive, Florissant, MO 63033 (map pin at street level)
County
St. Louis County
Hours
Wednesdays, 8:30 a.m.–noon and 1:00 p.m.–5:30 p.m. (arrive by 11:50 a.m. or 5:20 p.m.). Saturdays on the printed 2026 calendar, 8:00–10:00 a.m. and 10:30 a.m.–1:00 p.m. Remaining 2026 Saturdays on the locations page are November 14 and December 12.
Accepted
Paint; Used motor oil; Oil filters; Antifreeze; Household batteries; Car batteries; Fluorescent bulbs / CFLs; Pesticides & garden chemicals; Pool chemicals; Propane cylinders; Household chemicals & cleaners; Other household hazardous waste
The official program FAQ lists oil-based, craft and hobby paints, stains, varnishes, pesticides, herbicides, fire extinguishers, poisons, gasoline and other fuels, solvents and strippers, aerosol cans, motor oil and filters, certain gas cylinders, propane and oxygen tanks 20 pounds or smaller, automotive freon, nail polish, fluorescent tubes, isopropyl alcohol, rechargeable and alkaline batteries, car and boat batteries, antifreeze, brake and transmission fluid, pool chemicals, wood preservatives, driveway sealant, vape pens, cooking oil, residential photographic chemicals, fertilizer, household cleaners, flammable liquids and mercury-containing items. Latex paint is accepted for recycling as a separate paid service.
Not accepted
Explosives and ammunition; Radioactive waste; Smoke detectors; Medical waste and medications; Appliances; Asbestos; Tires; Electronics; TVs and monitors
Limits
One visit per household per day, with a 500-pound limit per drop-off. Fluorescent tubes are limited to 20 or fewer per visit.
Appointment
Required A reservation is required through hhwstl.com or by calling the county or city phone numbers listed on the City of St. Louis household-hazardous-waste page.
Who can use it
Residents of St. Louis County, St. Louis City and Jefferson County, age 18 or older. Proof of address such as a driver’s license or utility bill is required. Business, school, government and house-of-worship waste is not accepted.
ID / proof
Proof of address such as a driver's license or utility bill
Fees
The first 50 pounds of household hazardous waste are free; additional household hazardous waste is $1.70 per pound. Latex paint recycling is 50 cents per pound from the first pound. Credit or debit cards only.
Notes
Off West Florissant Avenue next to St. Louis County Highways and Transportation. The City of St. Louis official household-hazardous-waste page directs residents to this program. Latex-paint drying instructions on the FAQ were not copied.

Source: St. Louis Household Hazardous Waste program

Last checked: — Read directly from the official source page on 2026-11-09: confirmed the household hazardous waste service, address, hours, fees, accepted materials, residency/ID rules, appointment rules, quantity limits; phone, season, event dates, service area not stated on the page.

Source and reuse terms: Public government information (facts); linked to the official source page

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