Electrical service and streetlighting. In subdivisions of five or more lots and multifamily dwellings or townhouses containing five or more dwelling units, in accordance with an order by the Pennsylvania Public Utility Commission dated July 8, 1970, all extensions of residential electric service shall be installed underground. Additional costs will be paid prior to installation thereof by the applicant for such service. Further, the applicant for such service must provide satisfactory easements, clear and rough grade the land where the facilities are to be placed to within six inches of final grade, and request electric service at such time that the lines may be installed prior to any paving. Developer must provide and install poles (type and location) for streetlighting as per recommendations of the power company providing the service.