Comprehensive knowledge of principles and practices of water and sewer operations; extensive knowledge of the materials, methods, practices and equipment used in the operation of water and wastewater production, treatment, distribution and collection systems; knowledge of municipal public utilities administration, planning and design; comprehensive knowledge of municipal accounting and finance as related to water and wastewater utility operations; ability to prepare comprehensive financial, administrative and technical studies and reports and communicate complex ideas effectively, to a variety of audiences; ability to maintain effective working relationships with City officials, other local, state and federal career and elected officials, employees, contractors, industries, and the general public. The visual acuity requirements including color, depth perception and field of vision: The worker is required to have close visual acuity to perform the following: Preparing and analyzing data and figures; accounting; computer terminal; extensive reading; visual inspection involving small defects, small parts, operation of machines (including inspection).