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Howard County Alpha Ridge Landfill Household Hazardous Waste Collection

2350 Marriottsville Road, Marriottsville, MD 21104

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
Collection event
Address
2350 Marriottsville Road, Marriottsville, MD 21104 (map pin at street level)
County
Howard County
Dates
Saturdays from April through November, 8:00 a.m.–4:00 p.m. The 2026 season’s last collection is Saturday, November 28, 2026. The page says there are typically three special Saturday collections during the winter off-season.
Hours
Saturdays from April through November, 8:00 a.m.–4:00 p.m. at the Residents’ Convenience Center.
Accepted
Paint; Used motor oil; Household batteries; Fluorescent bulbs / CFLs; Pesticides & garden chemicals; Pool chemicals; Household chemicals & cleaners; Other household hazardous waste
The county page lists all-purpose cleaners, automotive fluids such as transmission and brake fluid, rechargeable, button and lithium batteries, cleaners and powders, degreasers, e-cigarettes and vapes (must be disassembled), fluorescent bulbs and CFLs, furniture polish, gasoline and diesel fuel, insecticides, pesticides, herbicides and fungicides, kerosene, mercury thermometers and thermostats, mildew removers, nail-polish removers, paint, paint thinners, photography chemicals, rust removers, solvents and strippers, swimming-pool chemicals and wood preservatives.
Not accepted
Ammunition; Asbestos; Commercial, industrial or medical waste; Dioxin; Explosives; Fireworks; Kepones; PCBs; Radioactive materials
Appointment
Not required, per the official page
Who can use it
Howard County residents only. A driver’s license is required as proof of residence.
ID / proof
Driver’s license showing Howard County residence
Fees
Not stated in our source — check before you go.

Source: Howard County Bureau of Environmental Services

Last checked: — Read directly from the official source page on 2026-11-09: confirmed the household hazardous waste service, address, hours, accepted materials, residency/ID rules, event dates, season; fees, phone, appointment rules, quantity limits, 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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