Laboratory Supervisor Water Service

October 23, 2026

Salary: $91,800.00 - $ / Annually

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.

Under general direction the Laboratory Supervisor will supervise the performance of laboratory technicians responsible for sample logistics, sample control and performing analyses of environmental samples; assisting in directing special study projects and program development within a full-service environmental laboratory; assisting in monitoring and supporting the maintenance of appropriate quality assurance (QA) and quality control (QC) processes and procedures throughout the laboratory sections ensuring compliance with TNI requirements;

performs related work as required. This position is located in Commerce, CA.

• Develops, supervises, reviews and directs the work of laboratory technicians coordinating testing of chemical, and bacteriological analyses of water through shipping, receiving, and tracking of sampling kits.
• Manage implementation of the annual monitoring schedules, sample coordination, collection and tracking to ensure regulatory compliance.
• Assists in management of continuous improvement activities utilizing Corrective Action Plans, process controls, and document management.
• Manage monthly monitoring schedules, sample coordination, collection and tracking to ensure regulatory compliance, utilizing LIMS and BI to ensure all monthly sampling requirements are met.
• Interviews candidates and recommends selection of employees; directs the training of employees in the performance of work; reviews and evaluates employee performance and recommends staffing changes to meet established goals; interprets Company policies and procedures to assigned staff; is responsible for the maintenance of safe working conditions.
• Assists with monitoring within the laboratory sections, the application of work methods and protocols that ensure achieving established laboratory wide quality assurance and quality control standards; implements corrective action as required.
• Provide assistance with the laboratory quality control and quality assurance program to ensure compliance with the State Water Resources Control Board (SWRCB) Environmental Laboratory Accreditation Program (ELAP) and TNI standards.
• Assist in the review and approval of inhouse and contract laboratory data.
• Assist with managing the laboratory safety program to ensure compliance with Occupational Safety and Health Administration (OHSA) requirements for safe working conditions
• Assists in planning, organizing, evaluating and managing laboratory waste storage, removal, and documentation.
• Performs work on-site in the assigned office location

• Bachelor’s degree in Chemistry, Microbiology, Biology and/or equivalent relevant experience
• Five years of experience working in water quality compliance
• Three years of experience working in an ELAP certified laboratory
• Two years of experience working in a TNI (The NELAC Institute) certified laboratory
• Water Distribution Operator Grade 2…