(a) It shall be unlawful for any person to drop, deposit, discard or otherwise dispose of litter in or upon any public or private property within the county, including, but not restricted to, any street, sidewalk, park, body of water or vacant or occupied lot, except in public receptacles, in authorized private receptacles provided for public use, in an area designated by the state department of health as a permitted disposal site or in bulk containers located at county container sites.