Motor vehicle salvage facilities and/or junkyards process materials and debris contaminated by petroleum and chemical products, generate waste tires, batteries, and other materials requiring special disposal methods, and store accumulations of materials and debris with the potential of contamination of soil, ground water and surface waters. It is in the best interests of the public's health, safety and welfare to regulate their operations for the protection of the environment, to preserve the public's health, and guard against the danger of fire.