The board of supervisors does hereby find and declare as follows:

    A.    That putrescible waste is a breeding and attraction media for flies; a source of food and harborage for rodents; and a source of unreasonable odors when allowed to accumulate, or when disposed of improperly;

    B.    That putrescible waste resulting from the keeping of certain animals on premises located in the unincorporated area has been found to greatly contribute to the production of files and rodents, which cause unsightliness by their presence as well as resulting in the depreciation of property values and in the reduction of the comfortable enjoyment of life;

    C.    That putrescible waste found in certain unincorporated areas of the county where there is a denser concentration of population poses a more serious threat to the health, safety, and general welfare of the people of the county;

    D.    That it is necessary to accomplish the object and purposes of this chapter, that the county health officer and other authorized agents be clothed with sufficient authority to enable them to deal with the conditions affecting the public health and safety as such conditions change or arise and to meet emergency situations in a prompt and efficient manner and that they be vested with and exercise discretion in the execution of the provisions of this chapter. (Prior gen. code § 3-91.0)