City of Stockton | Stockton, CA

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Posted Date 8/24/2021

Salary: $5,853.66 - $6,145.51 - $6,471.50 - $6,813.97 - $7,175.26

This recruitment is being conducted as an Open/Promotional recruitment. Current full-time City of Stockton employees may apply for this position as a promotional opportunity and successful candidates will be placed on a promotional list. All other candidates may apply for this position as an open competitive opportunity and successful candidates will be placed on an open list. The appointing authority will have the option of requesting names from the promotional list, the open list or a combination of both.

These lists may be used to fill future vacancies.

Prior to appointment, eligible candidates will be required to pass a back evaluation examination by a City Physician, and submit to and successfully pass a drug screen and background investigation, which will include fingerprinting.


Operates, monitors, inspects, and performs routine maintenance on a variety of plant equipment in connection with the continuous operation of a water or wastewater treatment plant; as experience is gained, incumbents plan, organize, direct, and personally perform operational duties involved in the operation and routine maintenance of a water or wastewater treatment plant and related facilities during an assigned shift; performs related work as assigned.



Under supervision, incumbents have the lead responsibility for planning, scheduling, coordinating, directing, and reviewing the effective and efficient operation and monitoring of the water or wastewater treatment system during an assigned shift in addition to operating and monitoring various plant equipment.  

PRINCIPAL DUTIES (Illustrative Only)

  • Operates and monitors pumps, valves, and other equipment by hand or mechanical means to regulate the flow of water or wastewater through various treatment processes; maintains an even flow to assure maximum efficiency of plant equipment.
  • Take samples of water or wastewater at various stages of the treatment process and other materials at established times; makes standardized control tests.
  • Operates, monitors, and adjusts chemical feed.
  • Operates, monitors and adjusts co-generation equipment (wastewater) to ensure compliance with established standards of operations.
  • Performs record keeping functions such as logging plant operations, test results, maintenance work performed, and unusual operating conditions encountered; prepares special reports as required.
  • Inspects plant equipment and reports any failures or operating difficulties; initiates work orders and requests for equipment repairs; stop, start, lock out, and tags equipment as required for repairs.
  • Cleans, lubricates, and performs routine maintenance of plant equipment and facilities; assists and directs routine maintenance painting of plant machinery, equipment, piping and structures; assists and directs the care of grounds adjacent to the work location.
  • Picks up or receives supplies delivered and ensures that they are properly stored.
  • Reads meters, gauges, charts, and instruments, and monitors continuous operation of Supervisory Control and Data Acquisition (SCADA).
  • Uses common hand and power tools; drives motor vehicle in the performance of the work; operates a forklift incidentally in the performance of the work.
  • Deals courteously and effectively with other plant personnel, including engineers and operations and maintenance employees, and with representatives of other agencies, private organizations, and the public.
  • Performs all operation duties required to operate the water or wastewater treatment system/plant.
  • Monitors developments in the field of water or wastewater treatment.
  • Performs preventive maintenance, operations painting, and facility and grounds maintenance.
  • May train, direct, and coordinate the work of others on a daily and project basis; instructs others in the proper work methods and job safety.
  • Recommends and initiates improved work methods and procedures.
  • Directs preventive maintenance, operations painting, and facility and grounds maintenance.
  • Plans, organizes, assigns, and reviews the work of assigned staff; leads and directs crews.
  • Performs the most skilled duties; provides technical assistance to crew members; instructs crew in work procedures and safe work practices; troubleshoots equipment problems; performs the necessary job functions to complete the tasks.
  • Plans, coordinates, schedules, reviews, and evaluates both the operation and the routine preventive maintenance and cleaning of water or wastewater treatment equipment and facilities during an assigned shift.
  • Periodically inspects plant equipment; reviews operating procedures to ensure adherence to maintenance, operation, and safety procedures.
  • Reviews and evaluates a variety of operational data from computer reports, daily logs, meters and gauges; develops and implements operational changes to ensure compliance with established standards and regulations and effective and efficient operation.
  • Supervises the compilation and maintenance of operations records; prepares periodic and special reports of work performed.
  • Assists in training, reviewing, and evaluating the work of operations personnel.
  • Prepares reports required for servicing or repair of equipment; adjusts operating schedules as required to meet changing conditions and emergencies.
  • Reads and interprets plant piping and distribution plans; assists in locating and troubleshooting plant malfunctions.
  • Requisitions materials, supplies, and equipment; initiates purchase requests and work orders for needed materials and for plant repairs and improvements.
  • Conducts safety meetings; assists in developing training programs.
  • Responds to emergency situations.
  • May act as Plant Operations Supervisor on a relief basis.





Possession of a high school diploma or GED.


If assigned to Wastewater: Valid California Grade III Wastewater Treatment Plant Operator Certificate.


Must possess and maintain a valid California Class C driver’s license.  

Knowledge of:

  • Operation, maintenance, and cleaning of advanced water treatment, or primary, secondary, and tertiary wastewater treatment equipment and facilities;
  • Water or wastewater treatment principles, methods, and practices;
  • Water or wastewater and shop mathematics;
  • Safety rules, codes, and regulations pertaining to the work;
  • Basic first aid and CPR techniques;
  • Methods and precautions in storing and handling hazardous chemicals;
  • Water or wastewater sampling and standard process control tests.
  • Modern water treatment or primary, secondary, and tertiary wastewater treatment principles and practices;
  • Applicable public health and governmental regulations;
  • Water or wastewater and shop mathematics;
  • Effective supervisory principles and techniques, including training, scheduling, and evaluating work; and
  • Mechanical, electrical, and hydraulic principles as they relate to the operation of a water or wastewater treatment system.

Skill in:

  • Cleaning and painting facilities and equipment;
  • Accurately reading and recording data from gauges, meters, and SCADA;
  • Basic operation of personal computer and other standard office equipment; and
  •  Establishing and maintaining effective working relationships with those contacted in the course of the work.
  • Operating water or wastewater treatment plant equipment, including automatic control devices without immediate or detailed supervision;
  • Performing routine maintenance and making operating adjustments to water or wastewater treatment equipment;
  • Recognizing unusual, inefficient, or dangerous operating conditions and taking appropriate action;
  • Instructing and directing the work of lower level employees;
  • Reading and interpreting plant piping and distribution diagrams and schematics;
  • Performing routine control tests and adjusting plant equipment accordingly; and
  • Keeping records and making oral and written reports of work performed.
  • Interpreting process control tests and directing the adjustment of plant operations accordingly;
  • Analyzing and making recommendations for improved methods and procedures;
  • Operating and performing minor maintenance to water or wastewater treatment equipment;
  • Planning, organizing, directing, reviewing, and evaluating the work of others;
  • Developing and revising operating schedules and procedures to meet changing conditions and to ensure safe, effective, efficient, and legal operation of plant facilities; and
  • Inspecting plant facilities and recognizing inefficient, unusual, or dangerous operating conditions; maintaining records of plant operations and preparing oral and written reports and correspondence.

Physical/Mental Abilities:

  • Mobility - Frequent performance of heavy manual labor; frequent standing for long period of time; frequent bending and walking;
  • Lifting - Frequent lifting up to 100 pounds;
  • Vision - Constant use of overall visual capabilities; frequent need for use of color perception, hand/eye coordination, reading and/or close up work; ability to see PC screens;
  • Dexterity - Constant grasping, holding, and reaching; Occasional repetitive motion;
  • Hearing/Talking - Frequent hearing and talking in person.  May be required to wear ear protection or hear in noisy conditions; 
  • Mental – Ability to comprehend and communicate oral and written instructions; ability to follow basic instructions and guidelines; ability to complete routine forms and basic reports and comprehend and communicate technical information;
  • Emotional/Psychological - Frequent coworker contact; occasional working alone;
  • Environmental Conditions – Frequent exposure to loud noise, chemicals, fumes, hazardous materials, gases, poor ventilation, exposure to extremes in temperature, humidity, wetness, and other environmental substances and constituents and odors associated with water and wastewater treatment plants;
  • Working Conditions - Must be willing to work outdoors in all weather conditions and in confined areas or from heights; and ability to wear respirators and self-contained breathing equipment; and
  • Special Requirements – Shift, weekend, holiday, overtime work as required, and off-hours in emergency situations.  


Job Category
Local Government
Career Level

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