Plant Technician Supervisor positions plan, assign, supervise, and participate in the work of an assigned crew engaged in the maintenance, overhaul, repair, and installation of water/wastewater/potable reuse treatment plant and pump station machinery and equipment, including: Air compressors, high pressure hydraulic systems, pumps and piping systems, chemical feed equipment (e.g., liquid chlorine evaporators, gaseous chlorinators), boilers, heat exchangers, and diesel and gasoline-powered engines; install and align heavy motors and equipment; supervise staff; enforce safety regulations; oversee the work of contractors; rate, train, and evaluate the work of subordinates; and perform other duties as assigned. Four years of full-time experience maintaining, overhauling, repairing, and installing mechanical equipment at a water treatment facility, wastewater facility, major pump station, or industrial processing facility employing similar technology, of which one year MUST have been in a lead position at a level equivalent to a Plant Technician III with the City of San Diego (a position that performs difficult maintenance, overhaul, repair and installation work on a wide variety of complex water and sewage mechanical equipment and leads a crew in the repair and maintenance of such equipment).