If the Customer requests and the Company approves, line extensions may be installed underground. In such case the Customer must provide all necessary excavation, back filling and grading in accordance with Company specifications and bear all costs set forth in this Rule plus any additional costs associated with underground installations as prescribed in our tariff. For each permanent, year-round dwelling, the Company will provide up to 175 feet of primary underground line per residential customer at no charge.

Where the primary underground line extension exceeds 175 feet, the Customer will be required to make a non-interest bearing cash advance equivalent to the Company’s estimated cost of construction of that portion of the line extension that exceeds 175 feet.