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The Licensed Water Operator maintains water treatment, processing, disposal and testing equipment in water treatment facility to purify water to meet permit and operational requirements. Based on the complexity of the treatment facility, the certification requirement will be different. 

 *Must have a California Water Treatment License T1 or higher*

  Job Duties

  • Assists in monitoring and operating individual water treatment processes, and appurtenant systems such as solids removal, dewatering, gray water disposal and emergency power systems either manually or using the Supervisory Control and Data Acquisition system.
  • Assists in conducting onsite inspections to operate water treatment processes and other appurtenant systems such as solids removal, de-watering, gray water disposal, and emergency power system.
  • Collects water samples and performs water quality analyses. Provides results to the shift operator. Calibrates laboratory equipment and verifies online instrumentation. Conducts quality assurance and quality control analyses.
  • Notifies the Shift Operator of adverse monitoring results or operational issues.
  • Assists in the response to incidental and emergency chemical releases under the direction of the shift operator or Incident Commander according to established protocols.
  • Assists in the performance of light maintenance and calibration of instruments. 9. Assists in executing switching and valving instructions.
  • Learns and assists to evaluate chemical usage and current inventory. Learns and assists to order and schedule chemical deliveries to maintain adequate chemical storage. Receives chemicals according to established procedures for security, quality and safety, which may include mixing and diluting chemicals.
  • Learns and assists to act as the on-site operator while maintenance activities or critical operations are being performed.
  • Creates records and logs associated with sub system and components within a water treatment facility.


  • High school diploma or general education development test (GED) and two years of water related experience or one year experience working at surface water treatment plant.
  • Required Knowledge of: Surface water treatment processes; laboratory procedures for process control sampling; applicable safety practices; mathematics; safe handling of chemicals; and current office technology and equipment.
  • Ability to communicate effectively in writing and orally (operational, process, safety and quality instructions). Must have the ability to perform basic math equations. Associate's degree in a science or technical area strongly preferred.
  • State of California Water Treatment Certification Grade II (at time of application)
  • Two to five years experience in a related position and environment with knowledge of the methods, techniques, and practices of water/wastewater treatment.
  • Must demonstrate proficiency in the care and use of all site specific, facility required PPE (Personal Protection Equipment), including respirators, gas detectors, confined space equipment, etc.)
  • Must consistently demonstrate the ability to operate assigned machines and equipment meeting or exceeding processing and quality targets under general supervision.
  • Must demonstrate ability to efficiently operate equipment such as pumps, engines, centrifuge, generators, valves, gates, mixers, conveyors, blowers, dryers, chemical feed, odor control, disinfection equipment, sludge processing filters, belt presses, and measuring/control devices, testing equipment and material handling equipment.
  • Must have the ability to diagnose process and mechanical problems in single or multiple unit processes, troubleshoot basic equipment and take corrective action within policy and procedure limitations.
  • Must demonstrate a working ability to use computer programs for process control.
  • Must demonstrate ability to work in a team environment and willingness to assume additional or new responsibilities readily.
  • Must be able to respond to emergency calls as needed and work extended hours to accommodate site needs.
  • Must possess a valid driver's license and a safe driving record.
  • Must be able to pass a drug screen and criminal background check.