LEONARDTOWN, MD – October 29, 2026 – The St. Mary’s County Department of Public Works & Transportation (DPW&T) will host a residential household hazardous waste collection event Saturday, Nov. 7, 2026, from 8 a.m. to 2 p.m. at the St. Andrews Landfill, located at 44837 St. Andrews Church Road in California, MD. Household hazardous waste includes products commonly found in homes that require special handling and disposal to protect public health and the environment. Improper disposal can lead to dangerous chemical reactions, fires, harmful vapors or contamination of soil and groundwater. Accepted items include gasoline, gas and oil mixtures, fuels, acids, household cleaners, solvents, bleach, ammonia, pool chemicals, photography chemicals, household and lawn pesticides, oil-based paints, paint thinners, mercury thermometers and wood preservatives. Residents may dispose of latex paint by adding a paint hardener and allowing it to dry completely. Items that will not be accepted include ammunition, asbestos, explosives, medical waste, pharmaceuticals, radioactive materials and picric acid. For more information and a full list of accepted items, visit www.stmaryscountymd.gov/fall26hazardouswaste or call the DPW&T at 301-475-4200, ext. 3550. For more information on St. Mary’s County Government, visit www.stmaryscountymd.gov or follow St. Mary’s County Government on Facebook, X, and Instagram for updates.