Knowledge of: Principles, methods and practices in the design and implementation of public relations, community affairs, public outreach and engagement and marketing programs; advertising and public relations industry practices and trends; methods and techniques of writing for advertising, marketing and public relations for a variety of audiences and in various channels; general principles and practices of conflict resolution and crisis management; customer relationship management and internal consulting concepts and practices; public administration principles, policies and procedures; financial/statistical/comparative analysis techniques and formulas applicable to areas of assigned responsibility; budget development and administration methodologies; District/Authority strategic and long-term planning goals and related public affairs, intergovernmental relations, media relations, community relations and business community issues and challenges as they apply to areas of assigned responsibility; federal, state and local laws, regulations and court decisions applicable to District/SNWA/Preserve programs, operations and policies; correct English usage, including spelling, grammar and punctuation; principles and practices of effective supervision; District human resources policies and labor contract provisions. While performing the duties of this class, an employee is regularly required to use written and oral communication skills; read and interpret complex data, information and documents; analyze and solve complex problems; observe and interpret people and situations; use math and mathematical reasoning; perform highly detailed work under changing, intensive deadlines on multiple, concurrent tasks; work with constant interruptions; and interact with District/SNWA/Preserve executives and managers, elected and appointed officials of other public agencies, business leaders and executives, representatives of community, professional and environmental organizations, the media and the public, often requiring tact and diplomacy in dealing with sensitive issues and volatile situations.