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Lab Analyst, Senior


Performs advanced journey level work in chemical, biological and bacteriological analysis of wastewater, and related solids and liquids in support of efficient operation of water and wastewater treatment operations. Provides overall supervision and management of a water/wastewater laboratory. Performs other related work as required. This classification is assigned to the miscellaneous bargaining unit for labor relations purposes and is subject to overtime and call-back assignments.


Positions in this class are normally filled by advancement from the Lab Analyst II. Individuals working in this classification are expected to perform the full range of basic to complex laboratory testing, quality assurance, quality control, information management and supervisory duties.


Direction is provided by the Water Quality Control Division Manager. Supervision exercised over Lab Analyst I/II classifications including work delegation, training, evaluations and similar functions.

ESSENTIAL FUNCTIONS: - Duties may include, but are not limited to the following:

  • Perform a variety of complex chemical, biological and bacteriological tests necessary to ensure that plant processes meet wastewater treatment NPDES discharge permit standards and that the City drinking water meets State and Federal health standards
  • Performs more complex testing requiring greater expertise in chemical science.
  • Prepare reports; compile and record data for analysis.
  • Collect samples for analysis; prepare glassware and equipment for laboratory use and perform lab housekeeping duties as necessary.
  • Ensures sufficient supply of materials and supplies for lab operation.
  • Make mathematical calculations and statistical analysis of test results.
  • May oversee special projects including coordination of other lab personnel.
  • Develop quality assurance and quality control methods which will meet accreditation standards.
  • Assist in training new employees and in establishing laboratory processes and workflow procedures.
  • Solve technical problems related to the analysis of water and wastewater test results; monitor overall quality control of laboratory tests.
  • Perform simple laboratory repairs; calibrate lab equipment; prepare reagents for lab tests and ensure proper preservation of lab samples.
  • Perform related duties as assigned.


Knowledge Of:

  • All of minimum qualifications for a Lab Analyst II classification.
  • Principles and methods used in complex chemical, biological, bacteriological and physical analyses of water or wastewater.
  • Proper sampling techniques.
  • Chemicals and their potential hazards.
  • Methods and processes of water or wastewater treatment, including applicable regulations governing wastewater treatment operations.
  • Analytical, organic and in organic chemistry.
  • Safe laboratory practices and procedures.
  • Analytical instruments used in water and wastewater analyses.
  • Supervisory skills and experience related to the management of a water/wastewater laboratory.

Ability To:

  • Prepare and maintain a variety of complex technical records and reports utilizing a computer.
  • Conduct technical and complex laboratory tests.
  • Manage multiple tasks within a given time frame and insure accurate results.
  • Work with limited supervision and provide supervision to subordinates and exercise sound judgement.
  • Utilize laboratory equipment used in wastewater treatment analyses.
  • Perform simple repairs to laboratory equipment and calibrate testing equipment.
  • Train new employees and cross train employees from other divisions.
  • Establish and maintain cooperative working relationships with others.



Two years of experience in performing laboratory testing comparable to that of a Lab Analyst II with the City of Turlock. Experience in the supervision of a water/wastewater laboratory environment, and/or continuing education equivalent to three continuing education units in supervision.


Possession of Bachelor of Science or Arts Degree in chemistry, biology or a closely related field.


Possession of a valid, appropriate California Driver's License at the time of appointment, to be maintained as a condition of continued employment. Possession of a Grade III Laboratory Technician Certification from the California Water Environment Association time of appointment.


Maintain the following physical abilities: See well enough to read fine print, computer screens and analytical equipment; hear well enough to receive and understand instructions, converse on the telephone, and in person; use of hands and fingers for use sensitive analytical equipment, computer keyboard, filing, writing and answering telephones; ability to differentiate odors; capable of clear speech; bodily mobility to stand for extended periods, stoop, bend as needed; able to lift and carry objects weighing up to 25 pounds.

      For questions about City employment, please contact:

      Human Resources
      156 S. Broadway, Ste. 235
      Turlock, CA 95380-5454
      (209) 668-5540
      Monday - Friday, 8AM - 5PM

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