Laboratory Analyst I​/II

Ready to take your career to the next level in a wastewater laboratory?

Napa San is now hiring for a Laboratory Analyst (Laboratory Analyst I/II)

Final date to receive applications: October 13, 2026, 5:00 PM

Are you ready to make a real impact on environmental safety and engage in dynamic, hands-on work? If you're a team-oriented individual with a sharp eye for detail, eager to dive into lab testing, we want to hear from you! We are seeking to fill one vacant position as either a Laboratory Analyst I or Laboratory Analyst II (flexibly staffed) depending upon qualifications.

Location: Napa, California
Schedule: Rotating Schedule (some weekends required)
Salary: $47.91 to $65.10 DOQ

• Career Growth: Clear path for advancement from Laboratory Analyst I to II based on experience, certifications, and performance.
• Impactful Work: Play a crucial role in testing and monitoring surface water, groundwater, wastewater, and recycled water to protect public health and the environment.
• Collaborative Environment: Work under the direction of the Regulatory Compliance Manager alongside experienced professionals, with hands-on training and development opportunities.
• Competitive Compensation: Attractive pay and benefits, with opportunities for emergency standby, overtime, and weekend work.

As a Laboratory Analyst I or II, your role will include, but is not limited to:

• Scheduling, performing, and interpreting physical, chemical, and bacteriological tests on wastewater and recycled water samples
• Collecting water samples from the treatment facility and in the field, including operating a boat for field sampling
• Setting up, calibrating, operating, and maintaining laboratory equipment and instruments
• Preparing and standardizing chemical reagents and sterilizing bacteriological media
• Compiling, entering, and maintaining water quality data in the Laboratory Information Management System (LIMS)
• Identifying analytical problems and recommending or implementing corrective action
• Ensuring compliance with federal, state, and local sampling, testing, and recordkeeping regulations
• Performing quality control and quality assurance work in accordance with California Department of Health Services Environmental Laboratory Accreditation standards
• Maintaining inventories of lab chemicals, equipment, and supplies, and keeping the laboratory clean and orderly
• Assisting with research, process improvements, and updates to procedures and documentation
• Staying current on developments in the water quality field through journals, training, and seminars

• Education: Equivalent to an associate degree with major coursework in chemistry, microbiology, or a closely related physical science. A bachelor's degree is highly desirable.
• Experience:
  • Laboratory Analyst I:
    No prior experience required.
  • Laboratory Analyst II:
    Three (3) years of progressively responsible experience performing testing and analysis duties within a water or wastewater treatment plant laboratory.
• License/
  
  Certifications:
  
  
  • Must possess a valid California Class C Driver's License and maintain a satisfactory driving record.
  • Laboratory Analyst I:
    Must possess a California Water Environment Association Grade I Laboratory Analyst Certificate, or the ability to obtain one within twelve (12) months of appointment.
  • Laboratory Analyst II:
    Must possess a California Water Environment Association Grade II Laboratory Analyst Certificate.

• Computer: Proficiency with Microsoft Office Products (primarily Outlook, Word, Excel) and comfort learning specialized laboratory software (LIMS)
• Physical requirements:
  • Ability to climb stairs and ladders
  • Bend, stoop, kneel, and stand for extended periods
  • Work on uneven terrain
  • Lift, carry, push, and pull materials…