A conditional use, as used in this ordinance, is designed to be a flexibility device designed to cope with situations where a particular use, although not inherently inconsistent with the use classification of a particular district, could create special problems and hazards if allowed to develop and locate as a matter of right in a particular district and therefore is in need of special consideration. Often the effects of these uses on the surrounding environment cannot be foreseen until a specific site has been proposed. The nature, character or circumstances of these uses are so unique or so dependent upon specific contemporary conditions that predetermination of permissibility by right or the detailing in the ordinance of all of the specific standards, regulations or conditions necessary or appropriate to such permissibility is not practical, it being recognized that the County is faced with practical difficulties in defining with precision in advance the conditions under which a conditional use permit will be granted. Those conditional uses hereinafter designated as such are deemed to have one or more of the following characteristics when located within certain districts: