Ability to: plan, organize, direct, and coordinate the activities of a large and varied division involved in the operation and maintenance of wastewater treatment facilities and systems; review, analyze, and interpret plans and designs prepared by engineers and contractors and recommend changes to meet operational and functional requirements; coordinate island-wide activities with other agencies; review, analyze, and interpret plans and specifications relating to wastewater projects and new equipment; interpret and apply laws, rules, regulation, policies, and procedures; formulate, implement, and revise policies and procedures; anticipate problems or issues that may arise and address them to prevent occurrence; direct maintenance activities at various plants; conduct investigations of complaints island-wide and recommend resolutions; develop and maintain an effective working relationship with employees, various departments, divisions, other governmental agencies, contractors, consultants, community organizations and the public; respond to emergencies; prepare and justify budget estimates; and occasionally direct work under hazardous and unfavorable conditions. Knowledge of: principles and practices of public administration, organization, supervision, budget formulation and control; principles and practices pertinent to the operation, installation, maintenance, overhaul, alteration, repair, and testing of wastewater treatment and pumping plant processes and equipment; sanitation requirements and principles involved in wastewater treatment; safety regulations and precautions; occupational hazards and safety practices; research methods and techniques; principles of hydraulics and electricity; and construction principles and practices applicable to wastewater treatment facilities and appurtenant equipment.