Knowledge of the operation and maintenance of utilities lines, pumps, electrical machinery, and controls; Knowledge and ability to use and maintain hand and power tools and related equipment; Knowledge and ability to diagnose problems and take corrective actions; Knowledge of current trade practices and technology; Ability to work from manufacturer manuals, drawings, and blueprints and calculates work specifications, and orders materials needed; Ability to establish and maintain effective working relationships with other employees, supervisors, and others; Ability to recognize occupational hazards and implement appropriate safety precautions; Ability to use small office equipment, computers, and highly technical computer applications; Ability to use or repair small, medium, and heavy equipment and machinery. Environmental Factors: Performance of essential functions may require exposure to adverse environmental conditions, such as dirt, dust, pollen, odors, wetness, humidity, rain, fumes, smoke, temperature and noise extremes, hazardous materials, unsafe structures, heights, confined spaces, machinery, vibrations, electric currents, traffic hazards, bright/dim lights, toxic agents, animal/wildlife attacks, animal/human bites, water hazards, disease, or pathogenic substances.