Within each mobile home park storm drainage shall be provided in accordance with the following minimum requirements.
(a) All mobile home sites, building sites, and other areas requiring grading shall be graded in such a manner that storm water will drain therefrom and there will not be any undrained depressions. Grading shall be accomplished in such a manner that it will not obstruct the natural drainage of adjoining and adjacent properties.
(b) Open drainage ditches shall not be permitted, and it shall be the responsibility of the mobile home park owner to install whatever drainage lines are necessary to carry storm water from his property to a point of distribution in a manner approved by the Planning Commission and/or other government agencies having jurisdiction, as required, to a natural waterway.