The amount of the payment in section 7-2-5 of this chapter shall not limit the liability of a permit holder, and the amount of the deposit paid under section 7-2-6 of this chapter shall not limit the liability of a utility company doing major changes or improvements. Each, together with its contractors or agents, shall remain liable for any surface restoration expenses or for damages exceeding the refundable portion of the payment in section 7-2-5 of this chapter or the deposit in section 7-2-6 of this chapter. Conversely, any balance remaining after the payment of all expenses or damages from the refundable portion of the payment in section 7-2-5 of this chapter shall be refunded to the permit holder. Any balance of the deposit in section 7-2-6 of this chapter remaining after the payment of all expenses or damages, together with interest on such balance, shall be refunded to the utility company upon completion of any major change or improvement. (Ord. 298, 4-25-1995)