.05 Charges.

A. A charge may be made by the utility for the underground installation, in accordance with tariffs filed with the Commission and the provisions of this regulation.

B. The service connection to the building normally will be at the corner of the building nearest the point at which the underground telephone service line enters the property to be served. If the applicant specifies a different service connection point at the building, then he shall pay the estimated cost of the excess trenching and backfilling.

C. Each applicant will cooperate with the utility in an effort to keep the cost of construction and installation of the underground telephone distribution system or service line as low as possible. Additional costs arising from failure of the applicant to cooperate with the utility shall be borne by the applicant.

D. The charges resulting from the application of these regulations may not be waived or refunded.