618.13  IMPOUNDING OF DOGS.
   It shall be the duty of the Police Department to take up and impound every dog found in violation of Section 618.01 or 618.07. If such a dog is not wearing a valid license tag, the Police Department shall turn it over forthwith to an officer charged by law with the custody of dogs and shall immediately give the owner, if he can be found, written notice that the dog has been taken up. The dog shall not be released except on payment of the reasonable expense of taking it up and keeping it, as determined by the Chief of Police, but not less than two dollars ($2.00), and any dog not reclaimed within seven days after receipt of notice by the owner, or within ten days of taking it up if the owner cannot be found, shall be destroyed or otherwise disposed of at the discretion of the person in charge of the Police Department.
(1964 Code §62.03)