Notification of the posting of the notice of the unruly gathering shall be mailed to any property owner at the address shown on the Pima County property tax assessment records. The notification shall advise the property owner that any subsequent unruly gathering within one hundred and twenty (120) days on the same premises shall result in liability of the property owner for all applicable penalties as provided in this article. Notification shall be made by certified mail. The return receipt shall be prima facie evidence of service for court proceedings. The owner of the property may also be notified by telephone and will be documented once individual contact with the owner has been made and the owner notified of the unruly gathering and posting. ((O)02-07, 03/20/2002)