Within 30 days after the receipt of an application, the Zoning Inspector shall either approve or disapprove the application in conformance with the provisions of this Ordinance. One copy of the permit shall be returned to the applicant by the Zoning Inspector, after the Zoning Inspector has marked such copy either as approved or disapproved and attested to same by his signature on such copy. One copy of permit, similarly marked, shall be posted, by the applicant, in a conspicuous place on the property in question, attesting to the fact that the activity is in conformance with the provisions of this Ordinance.