Each city or town or other public corporation owning or operating any water distribution system serving 3 or more parcels of real property in the County, and every other person owning or operating any such system may enter into and perform a contract with the County that it will, upon request by the county government specifying a parcel of real property in the County charged with any unpaid service charge under § 6709 of this title, cause the supply of water from its system to such parcel of real property to be stopped or restricted, as the county government may request, until the service charge and any subsequent service charge charged to such parcel and the interest accrued thereon is fully paid or until the county government directs otherwise. No such city or town or other public corporation or other person shall be liable for any loss, damage or other claim based on or arising out of the stopping or restricting of such supply, and the county government shall pay the reasonable cost of so stopping or restricting such supply and of restoring the same and may agree to indemnify such city or town or public corporation or other person from loss or damage by reason of such stopping or restriction, including loss of profits.