Water Treatment Plant Operator

The Presidio Trust is seeking an experienced Water Treatment Plant Operator. The Presidio, formerly a 1,491-acre Army base, is now a new kind of national park. The park offers unique recreation, hospitality, and educational opportunities, and is home to thousands of residential and non-residential tenants. The Municipal Services Division maintains the important infrastructure necessary to sustain the equivalent of a small city, including fire protection, utilities, water treatment, roads and trails, and transportation. The Presidio Water Treatment Plant, located near Baker Beach, draws the majority of its water from Presidio's Lobos Creek, the last free-flowing natural stream in San Francisco, which runs along the Presidio's southwest corner. Daily flows in 2016 average 1.4 million gallons per day. The Presidio Water Treatment Plant draws from the flow of Lobos Creek, treats the water, and distributes it park-wide to more than 1,300 service connections.

Our ideal candidate is comfortable using machines and tools; and enjoys the sciences, math, and computers. You are conscientious, calm, and safety oriented, working well under pressure as you provide clean water park-wide. You possess excellent customer service and communication skills and interact positively with the Presidio community, including colleagues, tenants, and visitors.

This is a full-time position with benefits, and a minimum salary of at least $40.40 per hour. Applications received by March 12th, 2018 will receive first consideration. We are planning to hold the first round of interviews beginning the week of March 19th, make a job offer in early April, and set a work start date in April.


  • Operate and monitor electric motors, pumps, and valves to regulate flow of raw water into treatment plant. Set dosages for specific amounts of chemicals such as chlorine, fluoride and alum into water or adjust automatic devices that admit specified amounts of chemical into tanks to disinfect and clarify water.
  • Monitor water SCADA system to include in-line mixers and flocculators, gravity filters, and a variety of water quality instruments. Clean sedimentation tanks. Pump treated water into water reservoir.
  • Clean filter beds, using backwashing.
  • Test water samples to determine chlorine content, fluoride content, pH, turbidity, and temperature, nitrite and ammonia.
  • Record data, such as residual content of chemicals, water turbidity and contact time.
  • Perform minor repairs to machines and equipment.
  • Perform routine cleaning of plant facilities.
  • Inventory supplies and prepare requisitions to replenish supply stock.
  • Monitor pump and tank levels; read meters, exercising distribution main valves and hydrants.


  • Associate's degree (A.A.) or equivalent from two-year college or technical school OR six months to one year related experience and/or training OR equivalent combination of education and experience.
  • Must possess and maintain a valid California Driver license and a Grade T2 water treatment operator certification prior to starting work. Must possess and maintain a Grade D1 water distribution system operator certification within 6 months of starting work in the position.
  • Must be able to read and interpret documents such as safety rules, operating and maintenance instructions, and procedure manuals; to write routine reports and correspondence; to speak effectively before groups of customers or employees.
  • Must be able to work with mathematical concepts such as statistical trend analysis and algebra and to apply concepts such as fractions, percentages, ratios and proportions to practical situations.
  • Must possess analytical skills sufficient to carry out assigned instructions furnished in written, oral or diagram form and deal with problems involving several concrete variables in standardized situations.
  • Must be able to frequently stand and walk, climb stairs and ladders, occasionally sit, use and reach with hands and arms, regularly lift/move up to 25 pounds, and frequently lift/move up to 50 pounds.
  • You may be occasionally exposed to wet or humid conditions, moving mechanical parts, toxic or caustic chemicals, and outside weather conditions. The noise level in the work environment is occasionally loud.
  • Subject to weekend, shift and overtime emergency calls.


  • Great attention to detail; ability to anticipate issues before they become problems for any of the various users and constituents.
  • Ability to work with a diverse team; good attitude.
  • Passion for the Presidio of San Francisco.

About the Presidio Trust Municipal Services Division

Approximately 3,000 people reside in apartments, townhomes, single-family homes, and duplexes in one of the 21 distinct Presidio neighborhoods, which are located near forest groves, trails, waterfront paths, a golf course, and a beach. More than 3.5 million square feet of non-residential space is located around the park. Two-thirds of the buildings are historic, representing a variety of architectural styles, from the Spanish era through World War II. The Presidio is an extraordinary place to work for the thousands of employees of approximately 100 businesses who lease non-residential space. The Presidio Trust Municipal Services Division ensures that these beautiful, historic buildings are operational, safe, and ready every day for their modern uses by tenants, residents, employees, and visitors.