There shall be two classes of building sewer permits: one for residential and commercial service and one for service to establishments producing industrial wastes. In either case, the owner or his agent shall make application on a special form furnished by the Loudoun County Sanitation Authority. The permit application shall be supplemented by any plans, specifications or other information considered pertinent in the judgment of the Authority. A permit and inspection fee of thirty dollars ($30.00) for a residential or commercial building sewer permit and sixty dollars ($60.00) for an industrial building sewer permit shall be paid to the Authority at the time the application is filed.