These activities include, but are not limited to: operating and maintaining 11 pump stations, 13 reservoirs, 9 storage tanks, and other ancillary appurtenances and equipment; installing, repairing and maintaining over one thousand miles of water distribution mains including service connections and meters; four water systems comprised of the Potable, Emergency Fire Water System (EFWS), Recycled and Groundwater; engineering and designing new main and feeder extensions; managing over 1,000 acres of city owned property and rights-of-ways; and responding to all two-alarm or greater fires to assist the Fire Department in maintaining adequate water volume and consistent pressure while fighting fires. Verification of completed or current enrollment in a custodial training course equivalent to the City College of San Francisco Custodial Training program at the time of application ORExperience: Six (6) months (1040 hours) verifiable paid full-time custodial or janitorial experience at a commercial building (such as an office building, warehouse, retail or wholesale store, or non-profit agency or a commercial facility (such as a university, hospital stadium, auditorium, hotel/motel, etc.).NOTE: Candidates who are enrolled in a custodial training course at the time of application must submit verification of having completed the course (e.g., a copy of their certificate), prior to appointment.