Knowledge of (or ability to learn) the proper industrial safety practices with special regard to gaseous manholes, working below grade or in confined places, high voltage areas, and/or areas involving heat, offensive odors, and dampness, including the practical application of first aid techniques; Knowledge of (or ability to learn) practices and procedures governing the construction and maintenance of sanitary sewers, sewage pump stations, water pumping facilities, water mains, and related facilities; Interpersonal skills necessary to develop and maintain effective and appropriate working relationships with citizens, co-workers, and representatives of other agencies, including individuals with various educational, lingual, and economic backgrounds; Ability to interact effectively with individuals who may be confused, upset, or irate; Ability to remain calm and level-headed during times of high pressure or stress; Must be able to work under adverse conditions, such as small spaces, deep underground or climbing water towers, and in human sewage; Ability to read and interpret plans, diagrams, drawings, prints, schematics, etc. May be required to climb or balance, reach with hands and arms, sit, stand, stoop, kneel, crouch, talk or hear, smell, and use hands to finger, handle, or feel; Works in an outdoor environment with exposure to weather-related heat and cold, rain, snow, wind, and related elements; Works in and on local and state roadways; Exposed to working in close quarters, high and precarious places, moving mechanical parts, moving traffic, vibration, fumes or airborne particles, sewage, and infectious diseases; May occasionally be required to move up to 200 pounds (such as a manhole cover); Required to serve in an “on-call” capacity during designated days or shifts, at all times, as well as be available to respond to emergencies or high-priority situations.