Actions of the Planning Commission on applications for Special Use Permits shall be taken at public hearings, notice of which has been given by the Secretary of the Planning Commission no less than ten (10) days before the date set for such action in the following manner:
   A. Such notice shall give the time, date, and place of the hearing, a brief description of the application and the legal description and/or street address of the property for which such Special Use Permit is sought.
   B. A copy of such notice shall be sent by mail to the last known address of owners of real property lying within three hundred (300) feet of the exterior boundaries of the property for which the Special Use Permit is sought. Failure to mail such notice to every property owner due to clerical omissions shall not affect the validity of any hearing or determination of the Planning Commission. The Planning Commission, however, may determine that such omission should be corrected and, therefore, may continue any such hearing until such time as notice in compliance herewith is made.
   C. A copy of such notice shall be published in a newspaper of general circulation in the County.
   D. Proof of compliance with this Chapter shall be by the written statement of the Secretary of the Planning Commission, giving the names and addresses of the persons to whom the notice was mailed, and the date of mailing, and that the Publisher's Affidavit of Publication will be obtained. Such proofs shall become a part of the record of the hearing of the Planning Commission on the Special Use Permit application.