Utility District Maintenance Worker Trainee (#RC0520)
$23.36-$28.39 Hourly / $4,048.45-$4,920.92 Monthly / $48,581.51-$59,051.13 Yearly


Under immediate supervision, learns to operate and maintain Utility District equipment and facilities; and does related or other work as required in accordance with Rule 3, Section 3 of the Civil Service Rules.


This is the pre-certified class in the Utility District Maintenance Worker series. Incumbents in this class are trained to perform tasks associated with operating and maintaining water, sewer and storm drainage systems and maintaining the related machinery, equipment, lines, buildings and grounds. This class is distinguished from the Utility District Maintenance Worker I by the certification requirements.


  • Learns to check operations of sewage treatment facility and water production equipment such as pumps, electrical controls, meters, valves, bearings, motors and chlorination equipment; trained in conducting basic lab analysis and tests; cleans, lubricates, adjust and repairs mechanical and electrical equipment.
  • Learns to clean sewer lines and storm drains; learns to operate sewer rodding equipment and other sewer cleaning tools; receives training on repairing sewer and water lines; repairs or replaces sewer and water mains and connections.
  • Learns to read maps, drawings, gauges, meters and charts; records readings and reports findings.
  • Cleans and repairs Utility District buildings and grounds and related facilities.
  • Operates a variety of trucks and other tools and equipment.
  • Prepares maintenance and other reports.
  • May work without immediate supervision on weekends, holidays, late shift, and callback situations.


Experience: Six months of semi-skilled experience in the general trades of mechanical, electrical or plumbing, installation of irrigation systems, or related areas.

Certification: Must meet state education requirements for Grade 1 Operator-in-Training certification of a high school diploma or equivalent, and upon appointment, incumbents must obtain a Grade I Operator-In-Training certificate. 

Special Requirement: No later than two years after the first examination is given, incumbents must obtain a Grade I Wastewater Treatment Plant Operator Certificate issued by the State of California State Water Resources Control Board. 

License: Possession of a valid California driver’s license.


Any combination of knowledge in; basic principles and practices of water, wastewater or sewer systems operation and maintenance; mechanical, electrical and plumbing principles and practices; basic repair, maintenance and adjustments for water, sewer or wastewater systems equipment; basic mathematics; sample collection and basic laboratory testing procedures; safe working practices and procedures.


Learn to inspect, repair and maintain plumbing, electrical and mechanical equipment, and facilities; operate tools and equipment; learn to locate and clean sewer stops and water leaks; read maps, drawings, charts, meters and gauges; maintain accurate records; prepare written reports; understand and follow written and oral instructions; learn principles of maintenance and operation of water and wastewater systems; sustain physical exertion and coordination in adverse conditions; operate computers and related software; communicate effectively, both orally and in writing; establish and maintain safe, effective working relationships with others.


Mobility-Operation of a data entry device; frequent walking, pushing, pulling, bending, squatting, driving for extended periods of time; occasional climbing; sitting, standing, running, crawling; occasional operating of heavy equipment; Lifting-Frequently 5 to 30 lbs or less; occasional 30 to 70 lbs; occasionally restraining, lifting and/or turning heavy objects; Visual-Good overall vision, color perception, depth perception; occasional reading and close-up work; normal hand and eye coordination; good field of vision/peripheral; Dexterity-Frequent holding, reaching; grasping; occasional repetitive motion; frequent writing; Hearing/Talking-Frequent hearing of normal speech; occasional hearing/talking on the radio, talking in person, exposure to traffic noise; ability to hear faint sounds; Emotional/Psychological-Frequent concentration, and decision making, public contact, working alone; occasional exposure to trauma, grief, and death; occasional exposure to hazardous materials; occasional dealing with emergency situations; Special Requirements-May require working overtime, weekends, nights and holidays; occasional travel; Environmental-Frequent exposure to varied weather conditions.

San Joaquin County complies with the Americans with Disabilities Act (ADA) and, upon request, will consider reasonable accommodations to enable individuals with disabilities to perform essential job functions.

CLASS: RC0520; EST: 2/14/2007;