Baltimore City Department of Public Works Acting Director Matthew W. Garbark has announced that the Household Hazardous Waste Drop-Off event for July will occur on Friday and Saturday, July 10 and 11. DPW offices will be closed on Friday, July 3 in observance of Independence Day. However, curbside collections will occur as normal on Friday, July 3. Solid Waste yards will be closed on Saturday, July 4.