 BRYN MAWR, Pa.--BUSINESS WIRE--Essential Utilities Inc. NYSE: WTRG announces the appointment of David Ciesinski to the Essential board of directors. Ciesinski will serve as a member of the audit and the corporate governance committees of the board. Ciesinski is the president, CEO and director of Lancaster Colony Corporation and the president of T. Marzetti Company where he has rebuilt the company leadership team and led the development and implementation of the companys growth plan, which 