Please ensure Javascript is enabled for purposes of website accessibility

Instrument and Control Technician

Non-Exempt (Hourly) – General Bargaining Unit (Union)

Class specifications are intended to present a descriptive list of the range of duties performed by employees in the class. Specifications are not intended to reflect all duties performed within the job.

2023 Salary Schedule
Step I Step II Step III Step IV Step V
$58.01 $60.87 $63.92 $67.10 $70.46

This position reports to the Nick C. DeGroot Water Treatment Plant in Oakdale, CA.


Final filing deadline: Until filled.

A current DMV printout is required with all applications. Must pass pre-placement physical and drug screen.


Under general supervision, installs, inspects, repairs, calibrates, and maintains electronic and computer based data acquisition and control systems (SCADA), metering and recording instruments, controlling apparatus, data logging and display equipment (HMI), communications and telemetry equipment, PLCs, Ethernet and proprietary networks; installs, inspects, and repairs VFDs, electric motors, gate controllers, medium and low voltage switchgear, backup generators, transfer switches, and other controlling devices used to treat, transmit, and distribute drinking water.


The following duties are typical for this classification. Incumbents may not perform all of the listed duties and/or may be required to perform additional or different duties from those set forth below to address business needs and changing business practices.

  1. Troubleshoots and implements needed changes to computer software and programs used in a SCADA /HMI and programmable logic controllers (PLCs) environment.
  2. Installs, calibrates, maintains, and repairs electrical and electronic/computer-based circuits, transformers, switches, light fixtures, motor starters, VFDs, motors, generators, control panels, electrical components or electronic regulatory systems, low voltage and medium voltage systems and equipment.
  3. Installs, maintains, monitors, overhauls, calibrates, and tests a wide variety of pneumatic and electronic recording, controlling, telemetry and other test instruments.
  4. Conducts inspections of remote drinking water facilities to identify need for repair and maintenance.
  5. Performs periodic preventive maintenance tasks on various control, metering, recording, and display equipment including cleaning, lubricating, calibrating, and adjusting equipment as needed.
  6. Troubleshoots and diagnoses electronic, electro-mechanical, and pneumatic instrumentation malfunctions; completes component level repairs or advises system contractors of other repair requirements as appropriate.
  7. Installs, maintains, and repairs system-wide radios and telephones; calibrates microwave electronic equipment, antennas, battery backup power supplies, and grounding systems including connections to existing systems.
  8. Designs, reads, and interprets wiring schematics, mechanical drawings, and specifications as necessary to install, service, and repair equipment in accordance with related regulations.
  9. Makes rough estimates of labor, materials, and supplies necessary for the performance of specific assignments; communicates with vendors.
  10. Keeps records and makes verbal and written reports of work performed.
  11. Responds to emergency situations.
  12. May be required to work shifts, rotation, call back, weekends, holidays, and nights.
  13. Performs related duties as required.

The following generally describes the knowledge and ability required to enter the job and/or be learned within a short period of time in order to successfully perform the assigned duties.

Knowledge of:

  • Computer-based data acquisitions and control systems and software used in a SCADA environment.
  • Wide range of instrumentation systems used in water treatment.
  • Electrical and electronic circuits.
  • Ethernet, Devicenet, Controlnet, Modbus, and other communication and control networks.
  • The methods, practices, and tools used in installing, maintaining, repairing, testing, and adjusting computers, program software, metering, recording, and display equipment.
  • Microwave and radio data communications equipment.
  • Related safety practices and precautions.
  • Codes, standard terms, practices, and modern methods common to the electrical trade.
  • Use and operation of measuring and testing devices, hand tools, and equipment of the trade.
  • National Electrical Code and Cal-OSHA regulations.
  • Principles of instrumentation installation, maintenance, operation, and testing.

Ability to:

  • Plan, layout, and execute instrumentation and computer control work.
  • Install, maintain, and repair instrumentation wiring, communication, computer hardware and software, and other control and electrical equipment.
  • Design, read, and interpret wiring diagrams and specifications.
  • Correctly interpret color-coded wiring, diagrams, and computer screens
  • Make estimates of labor and materials.
  • Keep records and make reports.
  • Use initiative and independent judgment with established guidelines.
  • Diagnose instrumentation, electrical, mechanical, and computer control malfunctions in typical water treatment equipment.
  • Communicate clearly and concisely, both orally and in writing.
  • Establish and maintain effective working relationships with those contacted in the course of work.

Education and Experience Guidelines – Any combination of education and experience that would likely provide the required knowledge and abilities is qualifying. A typical way to obtain the knowledge and abilities would be:


  • Equivalent to completion of the twelfth grade supplemented by technical courses in information technology, electrical maintenance, or a related field.


  • Four years of experience performing skilled work in electrical and electronic circuitry repair, two years of which must be in the installation, maintenance, and repair of computers and other related electronic metering and recording equipment. Successful completion of a technical course in electronics or computer repair may be substituted for the two years of specialized experience required.

License or Certificate:

  • Possession of an appropriate California operator’s license issued by the State Department of Motor Vehicles. A good driving record of at least two (2) years duration, as evidenced by freedom from multiple or serious traffic violations or accidents. Possession of and continuance of a driving record that does not cause adverse effect on the District’s automobile insurance rates is required.
  • Obtain within 24 months from the first day of District employment, California Water Environment Association (CWEA) Electrical/Instrumentation Technologist II certification.

The conditions herein are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential job functions.

Environment: Work is performed primarily in an outdoor setting, with travel from site to site; exposure to noise, potentially hazardous chemicals, electrical energy, and heights. May be required to work weekends, nights, unusual shifts, or be subject to emergency recall.

Physical: Primary functions require sufficient physical ability and mobility to work in an outdoor water treatment plant setting; to stand or sit for prolonged periods of time; to stoop, bend, kneel, crouch, reach, and twist; to climb ladders, stairs, and ramps; to lift, carry, push, and/or pull moderate amounts of weight; and to verbally communicate to exchange information.

Vision: See in the normal visual range with or without correction.

Hearing: Hear in the normal audio range with or without correction.

This job description has been prepared to define typical duties that an employee is expected to perform in this classification. It is not intended to limit the work which may be performed since other tasks may be assigned that are similar in nature. Further, specific duties may be changed or deleted from time to time as deemed necessary or prudent by the Manager.