(a) It shall be unlawful for any person to unload, permit or cause to be unloaded any bulk cement from trucks or other vehicles into vats or bins at bulk cement mixing plants in the City, without providing a completely enclosed device, chute or passage through which the bulk cement can pass from the truck or vehicle into the bin or vat, which completely enclosed device, chute or passage will prevent the dissemination, blowing or dispersing of cement dust into the atmosphere. All persons engaged in the business of operating a bulk cement mixing plant in the City shall cause such a completely enclosed device, chute or passage to be installed at all openings into bins or vats where bulk cement is so unloaded.
(b) The unloading, transfer or transportation of cement or concrete to, at or from a bulk cement mixing plant in violation of this section, or in such a manner as to permit cement dust to be released into the atmosphere whether on private property or on any public property or public right-of-way, is hereby declared to in injurious to the health, safety and comfort of the public of the City, and is hereby declared to be a public nuisance.
(c) The term BULK CEMENT MIXING PLANT when used in this section shall mean a place where concrete or mortar is mixed or prepared for ultimate use at some other premises.
(Ord. 652, passed 11-11-1946)