Summary This vacancy is for a WG - 4749-9,Maintenance Mechanic - Plumber located in the Department of Homeland Security, U.S. Coast Guard, TRACEN PETALUMA FAC ENG - UTILITIES in PETALUMA, California. Responsibilities You will serve as a Maintenance Mechanic, WG-4749-9 and be responsible for preventative, emergency, and routine service work as a Maintenance Mechanic in refrigeration, heating ventilation, air conditioning, and plumbing trades throughout the grounds. Being a Coast Guard civilian makes you a valuable member of the Coast Guard team. Typical work assignments include: Logging expenditures of time and materials; and scheduling, accomplishing, and recording completion of work tasks. Following established preventative maintenance schedules and manufactures maintenance instructions. Repairing and maintaining large air conditioning systems that performs a variety of functions including heating, cooling, humidifying, dehumidifying, cleaning, filtering, and circulating. Installing, ...