Explosives Illegal in Garbage, Recycling & Drains Special Instructions Explosive items must NOT go in any carts or bins. Nor can they be disposed of through the County Household Hazardous Waste Program. Any unwanted ammunition or fireworks can be surrendered to the San Jose Police Department where they will be disposed of properly. Road flares may be disposed of as hazardous waste. Contact Law Enforcement Explosives cannot be disposed of with hazardous waste because they have their own set of regulations. With the exception of fireworks, contact the police or fire department for further instructions.