Plant Technician Ii

County of San Diego
$58,177 - $69,451 Per year CA San Diego Public Utilities Department, 9192 Topaz Way, San Diego, CA 92123, United States



See NOTE(S) below for future wage increases and/or additional compensation opportunities.

Plant Technician II positions perform maintenance, overhaul, repair, and installation of water/wastewater treatment plant and pump station machinery and equipment including: Air compressors, high pressure hydraulic systems, pumps and piping systems, chemical feed equipment, boilers, heat exchangers, and diesel and gasoline powered engines; install and align heavy motors and equipment; provide training; maintain records; complete forms and reports; and perform other duties as assigned.


  • Employees in job classifications represented by AFSME Local 127 are scheduled to receive the following general wage increases:
    • 4% effective 7/1/24 
    • 2% effective 1/1/25 
    • 5% effective 7/1/25  
  • In addition to the scheduled general wage increases, the following special salary wage increase is also scheduled to take effect for Plant Technician II:
                 5% effective 1/1/25
                 5% effective 1/1/26
  • Plant Technician II employees must remain clean shaven and be able to pass a respirator fit-test for entry into confined spaces or environments containing the potential presence of chlorine, hydrogen sulfide (H2S), or methane.
  • Plant Technician II employees may be required to work overtime including evenings, weekends and holidays.
  • Plant Technician II work involves exposure to noxious chemicals and other hazardous substances.
  • Plant Technician II employees will be required to obtain and maintain confined space entry certification within one year from date of hire.
  • Some Plant Technician II positions may require working on an on-call basis for which they may receive 5% additional pay.
  • Some Plant Technician II positions may also require work in a sewerage or chlorine environment, in high places, tanks or channels, and confined spaces.


You must meet the following requirements on the date you apply, unless otherwise indicated.


: Two years of full-time experience maintaining, overhauling, repairing, and installing mechanical equipment at a water treatment facility, wastewater facility, major pump station, or industrial processing facility employing similar technology. Qualifying experience MUST include working on pumps, valves, and/or piping systems.


  • Preventive maintenance work only (e.g., changing oil, lubing, or removing and replacing parts) is NOT qualifying.
  • City of San Diego employees using Out-of-Class Assignment (OCA) experience to qualify must submit written documentation signed by their appointing authority or payroll specialist, detailing the work performed, dates, and total number of qualifying OCA hours. OCA experience without the required documentation will NOT be considered.


: A valid California Class C Driver License is required at the time of hire.  


  • Experience maintaining, overhauling, repairing, and/or installing dewatering centrifuge, compressors, gear drive units/speed reducers, chemical feeders, small gasoline/diesel engines, and blowers.
  • Experience and training in Predictive Maintenance Technologies.
  • Experience and training with computer programs/software.
  • A valid California Water Environment Association (CWEA) Plant Maintenance Mechanical Technologist Grade II or higher certification.
  • Knowledge of machinery alignment protocol.



  • For City of San Diego employees, proof of Out-of-Class Assignment (OCA), if utilized to meet the minimum requirements. 

Required documents should be attached electronically to your application.  If you are unable to attach at the time of application submittal, you must submit them as soon as possible via fax:  (619) 533-3337; or to the Employment Information Center:  City of San Diego Personnel Department, 1200 Third Avenue - Suite 300, San Diego, CA 92101.  Include your name and the title of the position for which you are applying.


Please ensure all information is complete and accurate as the responses you provide on the supplemental questions will be reviewed using an automated evaluation system.  If you are successful in this initial screening process, your application will be reviewed for applicable education, experience, and/or training to ensure all minimum requirements have been met.  Successful candidates will be placed on a list which will be used to fill position vacancies during the next six months (180 days).  For each vacancy, only those candidates with the most appropriate qualifications will be contacted by the hiring department for an interview.


PRE-EMPLOYMENT REQUIREMENTS: Employment offers are conditional pending the results of all screening processes applicable to this position, which may include the following: confirmation of citizenship or legal right to work in the United States; completion of a pre-employment medical review and exam (which may include drug and alcohol testing); reference checks; and fingerprinting. Fingerprints will be submitted to the Federal Bureau of Investigation and the California Department of Justice for a conviction record report. Certain positions may require additional screening processes, including a polygraph examination and/or background investigation. All screening processes must be successfully completed before employment begins. A positive test result for alcohol, cannabis/marijuana, illegal drugs, or inadequately explained prescription drugs, or misrepresentation, falsification, or omission of pertinent facts in any step of the screening or selection process, may constitute cause for disqualification or termination of employment. Nothing in this job posting constitutes an express or implied contract for employment with the City of San Diego. Candidates must notify the Personnel Department of any change in their name, mailing address, email address, or phone number, otherwise they may miss employment opportunities.

Rev. 34 – July 3, 2023 (Pay Note Added)