Find & Apply For Microbiologist Jobs in Commerce, California

Microbiologist California Water Service Company United States, California, Commerce Oct 22, 2026

California Water Service Job Description:

California Water Service Group (Cal Water) invites you to build a meaningful career with the third largest publicly traded water utility in the United States. Guided by our mission to be the leading provider of water and wastewater services, we are dedicated to improving the quality of life for the customers, communities, and employees we serve. Our culture is grounded in core values-integrity, quality, service, value, health and safety, respect and collaboration, and corporate citizenship-and is reflected in our recognition as a Top Workplace, a Great Place to Work, and a J.D. Power leader in customer satisfaction for multiple years. Join Cal Water and be part of a purpose driven organization where your work makes a lasting impact. Microbiologist is the intermediate level in this classification series. Microbiologists in this class perform routine analysis and daily/monthly/quarterly QA/QC regularly. Microbiologists will also assist the Microbiology lab with printing sample labels, COCs, overseeing the monitoring schedule, data entry, reporting, and communicating with district personnel and Project Managers. This position is located in Commerce, CA.

Essential Functions:

Perform standard QA/QC on testing equipment and media according to Standard Methods and the EPA Manual for Certification of Laboratories

Prepare standard bacteriological media

Prepare sample labels, and COCs

Review and monitor the bacteriological sampling schedule for all regulatory sampling

Receive and process bacteriological samples

Perform bacteriological testing based on Standard Methods and the EPA Manual for the certification of Laboratories

Evaluate and interpret results of analytical testing

Enter data and results of analyses into the laboratory information management system (LIMS)

Communicate with district personnel and Project Managers concerning COC errors, results or re-sampling

Assist in maintaining laboratory safety

Train laboratory technicians, and/or cross-train analysts as needed

Understand the notification procedure for Total Coliform Rule samples

Perform proficiency tests as required

Keep laboratory facilities in a clean and orderly condition

Participate in inventory management of the microbiology lab

On call weekends and holidays as required

Perform various methods used to identify microorganisms

Record results of analyses and keep records of hardcopies generated by the lab

Responsible for keeping hardcopy micro laboratory data in order (binders, reports, COC and QC)

Responsible for inputting backlog data

Participate in Continuous Improvement (CI) activities

Perform other related duties as required

Minimum Qualifications:

Bachelor's degree from an accredited college or university in microbiology, chemistry, biology, or related field, with six years of experience working in laboratory environment, supporting microbiological or chemical analysis, or

Master's degree an accredited college or university in chemistry, microbiology, biology, or related field with four years of experience working in laboratory environment, supporting microbiological or chemical analysis, or

Two years of experience as an Assistant Microbiologist

Have a working knowledge of EPA methods, the EPA Manual for the Certification of Laboratories, Standard Methods and Title 22, where appropriate

Salary Range:

$106,135.33 - $147,069.90 Deadline to submit resume is Tuesday, November 5, 2026. The Equal Opportunity Policy of the Company is based upon the philosophy that all people should be treated fairly and with dignity. California Water Service, Hawaii Water Service, Mexico Water Serviceand Washington Water Servicedo not discriminate against any applicant or employee because of race, color, religion, sex, national origin, or any other protected class. The Company makes all employment decisions in a non-discriminatory manner.

EOE, VET, DISABILITIES.

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