Upon becoming aware of nuisance conditions set forth herein, the Mayor or his or her designated representative shall make a determination whether or not the conditions and circumstances constitute a nuisance as herein defined. If it is determined that the conditions constitute a nuisance, the Mayor shall cause a written notice to be given to the owner, tenant, or person in control of the premises, or an agent thereof, to remove or abate the nuisance. Such notice shall state the nature of the nuisance and that it must be removed or abated within ten days and that failure to do so may cause a complaint to be filed in municipal court for violation of maintaining a nuisance. Such notice shall be given by delivering the written notice personally or by mailing the written notice by certified mail, return receipt requested. If the location of the owner of the property is unknown, the notice shall be mailed, by certified mail, return receipt requested, to the last known address listed on the tax roll and by publication in the official newspaper and a regional newspaper of general circulation in the area for at least two successive days. If the notice is mailed, it shall be prima facie evidence of service if an executed return receipt is received.