Air Quality Instrument Specialist II (Advanced Monitoring Technologies) @ South Coast Air Quality Management District - Diamond Bar, CA

Air Quality Instrument Specialist II (Advanced Monitoring Technologies)


South Coast Air Quality Management District (South Coast AQMD) is one of the largest and most technologically sophisticated environmental regulatory agencies in the nation. We serve a four-county region that includes all of Orange County and parts of Los Angeles, Riverside, and San Bernardino counties, home to almost 17 million people. South Coast AQMD's headquarters is located in Diamond Bar, 30 miles east of downtown Los Angeles, at the junction of the 57 and 60 freeways. With a highly diverse and dedicated "Clean Air Team" of over 750 employees, an annual budget of $173 million, South Coast AQMD's mission is to protect public health from air pollution through a comprehensive program of planning, regulation, education, enforcement, incentives, technical innovation, and promotion of public understanding of air quality issues.


The Air Quality Instrument Specialist II is a journey-level classification that performs a variety of technical duties involved in repairing, troubleshooting, calibrating, testing, installing, and operating instrumentation used in air monitoring, meteorological and special monitoring operations. Incumbents would work mainly in a field to assure proper operation and maintenance of advanced air monitoring and meteorological equipment at Rule 1180 community air monitoring sites. They must draw upon their initiative, experience, and judgment in selecting different methods of analyzing and correcting instrument malfunctions within defined procedures and guidelines. Positions assigned to air monitoring activities receive administrative and technical supervision from the designated supervisor and the professional or technical personnel of the respective work unit.

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More details about the Rule 1180 program can be found at the links below:

Rule 1180 Implementation:

Rule 1180 community air monitoring data portal:

  • Repairs, installs, operates, and maintains air monitoring and meteorological instrumentation and equipment, including testing, diagnosing, and repairing malfunctioning instruments and components.
  • Calibrates a variety of air monitoring and meteorological instruments, according to South Coast AQMD specifications, to ensure validity of data.
  • Installs and modifies instruments used for meteorological and contaminant monitoring projects.
  • Prepares Mobile Source Test Vehicle (MSTV) for source testing activities by performing a variety of electronic tests to ensure that MSTV instrumentation records data and analyzes contaminants according to District standards.
  • Tests instruments and traces circuitry and components to ascertain cause of fluctuations in readings, instrument malfunctions, and failures; adjusts, replaces or repairs faulty components by using test equipment, tools, schematics, and instrument manuals.
  • Disassembles malfunctioning instruments and equipment and examines mechanisms, circuitry, wires, electrical motors, and other subsystems, installs instruments and equipment, and tests assembly for conformance with instrument manual and South Coast AQMD specifications.
  • Makes recommendations and implements modifications to instruments and procedures to improve accuracy, dependability, and serviceability.
  • Records accurate and complete notes and reports on repairs, calibrations, instrument performance, and modifications in instrument and station log books, maintenance sheets, and other documents.
  • May occasionally serve as lead worker on meteorological or air monitoring projects.
  • May assist in the development of written procedures to operate, service, repair, or calibrate air monitoring instrumentation.
  • May respond to emergency service calls, as assigned or as the situation requires.


In addition to the Minimum Qualifications, the most competitively qualified candidates for this recruitment will possess:

The most qualified candidates will have previous experience troubleshooting, modifying, configuring, and working with traditional and (ideally) advanced next generation air quality instrumentation, such as Federal Reference and Federal Equivalent Methods for particle and gaseous monitoring, but also optical analyzers and auto-GC’s, meteorological equipment and/or similar types of electronic and mechanical devices. Understanding of the principals of operation of advanced air monitoring instrumentation, and practical understanding of electronics is a plus. Ability to demonstrate skills and experience in developing creative solutions for air quality monitoring challenges or strong problem solving experience in other related fields, such as chemistry, physics, environmental sciences and engineering, is desirable. The most successful candidates will have a demonstrated ability to work independently and collaboratively to find solutions to unexpected instrument and equipment problems. Proficiency in computer applications and computer programming skills, as well as familiarity with air quality and meteorological data and data quality assurance experience is desired, but not required.



One year of experience as an Air Quality Instrument Specialist I.


Completion of at least 34 semester or 51 quarter units from an accredited college or university in electronics, physics, chemistry, or a related field, AND one year of experience performing duties comparable to an Air Quality Instrument Specialist I or two years of experience performing duties comparable to an Assistant Air Quality Instrument Specialist.

LICENSE: Possession of a valid California Class C Driver License. A California Class B Driver License may be required for some positions in the class.

KNOWLEDGE OF: Operating, servicing, and repairing electronic and mechanical instrumentation and equipment; theories and principles of physics, chemistry, and electronics as applied to the calibration, repair, and maintenance of air monitoring instruments and equipment; methods used in the measurement and monitoring of air contaminants; techniques for installing, calibrating, and repairing instrumentation used in the air monitoring program.

ABILITY TO: Read, interpret, and perform operating and maintenance procedures; understand and follow oral and written instructions for installing, operating, servicing or repairing air quality monitoring instrumentation; respond to emergency service calls in a timely manner and restore instruments to service; perform specialized calibrations and functional checks; complete special projects independently with minimal guidance; prepare and maintain accurate logs, records, and reports; work cooperatively with other agencies, divisions, co-workers, and the general public; operate, service, repair, calibrate, or adjust air quality monitoring instrumentation; set up and install air monitoring instruments, using various tools, electronic testing equipment, material and processes.

  • A completed employment application covering at least the past 10 years of employment history (or longer if you have other relevant experience), and your entire South Coast AQMD employment history if you are a South Coast AQMD employee.
  • Four references which include the names and phone numbers of your present and past supervisors or managers, or persons for whom you have directly provided services, not peers.

  • Complete responses to the Supplemental Questionnaire. (Do not simply state "see resume.")
  • A copy of your transcripts, documenting all qualifying education claimed, submitted as an attachment to your online application. You must submit acceptable documentation for all education claimed on your application. Acceptable documentation consists of a copy of unofficial copies of your transcripts attached to your application. If you are in final consideration, original, official transcripts for all degrees/education claimed will be requested as detailed in the "Educational Requirements" link on the Employment Opportunities webpage.

Job applications must be completely filled out. A resume cannot be substituted for the required information. Be sure to detail any education, training or other relevant coursework that would make you a particularly strong candidate.


Application packets and supplemental questionnaires will first be reviewed and only the most competitively qualified candidates will be invited to the next step of the process, which is a multiple-choice examination rated on a pass/fail basis. Candidates who pass will be invited to a panel interview. The interviews (weighted at 100%) are expected to result in a ranked eligible list from which current and future vacancies occurring during the six- to twelve-month life of the list may be filled. If you are invited to this portion of the selection process, a current printout of your "K- 4" driving record will be required at the time you appear for the interview.

Please note: The only way to obtain a K-4 report is to go to a DMV office (not available online). You must specifically request a K-4 printout from the DMV, which covers a 10-year driving history. If your license is from outside of California, we require an official driving record from the state of issuance, which covers the last 10 years.

At each successive step of the selection process, only the most competitively qualified candidates will advance to the next step, based on a natural break in the scores resulting from evaluation of candidate performance by subject matter experts.

South Coast AQMD reserves the right to add, delete, or modify any elements of the selection process as deemed appropriate, based on the number and quality of applicants at each step.

Please call Human Resources at least one week in advance if you might need an accommodation at any time during the selection process.

If you have any questions regarding this recruitment, please contact Human Resources at (909)396-2800.