How to get rid of household hazardous waste in Harford County
Household chemicals go to the county’s hazardous waste days (next: Saturday, Nov. 14, 2026, 8 a.m. to noon, at the Harford Mulch & Compost Facility, 3139 Scarboro Road, Street). They’re free for residents bringing only hazardous waste.
Rules for household hazardous waste
- Fee
- Free
- Limit
- Not posted. Call ahead.
- Residency
- Harford County residents only, with proof of residency; no businesses
- Not taken there: gasoline, oil, antifreeze, lead-acid batteries, latex paint, and propane (the disposal center takes those), or ammunition, explosives, lab chemicals, and medical or radioactive waste.
Maryland’s collection days
One-day drop-offs that counties hold for their own residents. Coming up in the counties we cover:
- Fri Nov. 6City of BaltimoreSisson Street household hazardous waste drop-off, Baltimore9 a.m. to 5 p.m.
- Sat Nov. 7City of BaltimoreSisson Street household hazardous waste drop-off, Baltimore9 a.m. to 5 p.m.
- Sat Nov. 7Charles CountyCharles County Department of Public Works, La Plata9 a.m. to 3 p.m.
Household hazardous waste in other counties and cities
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