ZipRecruiter

Log In

1

Water Testing Lab Jobs in California (NOW HIRING)

Cosmetix West

R & D Lab Coordinator

El Segundo, CA · On-site

Ensure all supplies are in stock and ready for batching (DI Water, IPA, clean beakers, etc ... Crosstrain on stability testing and provide coverage when the Stability Coordinator is absent.

SlingShot Connections

Be Seen First

Chemical Lab Technician

Hayward, CA · On-site

$28 - $31/hr

About the job The Chemical Lab Technician is responsible for conducting chemical and ultra-pure ... testing, wastewater treatment, and regulated chemical disposal ● Understands ultra-pure water ...

Fujifilm

Quality Control Lab Assistant

Santa Ana, CA

$20.84 - $27.19/hr

Arrange testing sample to contract lab, and tracking sample and liaising with contract labs to ... General knowledge of Manufacturing Processes, Water Systems, Cell Culture, Chemistry, and ...

Aemetis

Quality Manager

Keyes, CA · On-site

$115K - $125K/yr

Oversee water testing results. * Ensure quality assurance testing on supporting laboratory ... Experience in lab operations with a strong background in lab quality control and standard lab ...

Eurofins

Intern

Santa Clara, CA · On-site

$17.50 - $23.50/hr

From the food you eat, to the water you drink, to the medicines you rely on, Eurofins works with ... Implement continuous improvement initiatives in reliability testing, lab efficiency, and process ...

Eurofins Scientific

Intern

Santa Clara, CA

From the food you eat, to the water you drink, to the medicines you rely on, Eurofins works with ... Implement continuous improvement initiatives in reliability testing, lab efficiency, and process ...

Fujifilm

Quality Control Lab Assistant

Santa Ana, CA · On-site

$20.84 - $27.19/hr

Arrange testing sample to contract lab, and tracking sample and liaising with contract labs to ... General knowledge of Manufacturing Processes, Water Systems, Cell Culture, Chemistry, and ...

Fujifilm

Quality Control Lab Assistant

Santa Ana, CA

$20.84 - $27.19/hr

Arrange testing sample to contract lab, and tracking sample and liaising with contract labs to ... General knowledge of Manufacturing Processes, Water Systems, Cell Culture, Chemistry, and ...

Eurofins

Intern

Union City, CA · On-site

$17 - $22.75/hr

From the food you eat, to the water you drink, to the medicines you rely on, Eurofins works with ... Implement continuous improvement initiatives in reliability testing, lab efficiency, and process ...

Eurofins Scientific

Intern

Santa Clara, CA

From the food you eat, to the water you drink, to the medicines you rely on, Eurofins works with ... Implement continuous improvement initiatives in reliability testing, lab efficiency, and process ...

next page

Showing results 1-20

All JobsWater Testing Lab JobsWater Testing Lab Jobs in California

Water Testing Lab information

See California salary details

$9

$24

$44

How much do water testing lab jobs pay per hour?

As of Jul 18, 2026, the average hourly pay for water testing lab in California is $24.92, according to ZipRecruiter salary data. Most workers in this role earn between $18.99 and $27.50 per hour, depending on experience, location, and employer.

What is a water testing lab?

A water testing lab is a specialized facility that analyzes water samples to assess their quality, safety, and composition. These labs test for contaminants such as bacteria, heavy metals, chemicals, and other pollutants to ensure water meets health and regulatory standards. The results help individuals, businesses, and municipalities ensure their water is safe for drinking, industrial use, or environmental compliance. Water testing labs use advanced scientific equipment and follow standardized testing methods for accurate results.

What are some common challenges faced by professionals working in a water testing lab, and how can they be addressed?

Professionals in a water testing lab often encounter challenges such as maintaining strict adherence to quality control protocols, managing high sample volumes, and staying updated with evolving regulations. Ensuring accuracy and preventing cross-contamination require strong attention to detail and rigorous documentation. Collaborating effectively with colleagues and other departments is essential for timely reporting and resolving unexpected results. Continuous training and adopting new technologies can also help address these challenges and enhance both efficiency and data reliability.

What is the highest paid lab technician?

The highest paid lab technicians in water testing labs typically have advanced certifications, specialized skills, and extensive experience, earning salaries that can exceed $50,000 to $70,000 annually. Senior or supervisory roles, such as lab managers, often command higher salaries due to increased responsibilities and expertise.

How to become a water testing technician?

To become a water testing technician, individuals typically need a high school diploma or equivalent, followed by training in water quality testing methods. Certification programs in water analysis or environmental science can enhance job prospects, and familiarity with laboratory equipment and safety protocols is essential.

What are the key skills and qualifications needed to thrive as a Water Testing Lab Technician, and why are they important?

To thrive as a Water Testing Lab Technician, you need a background in chemistry, biology, or environmental science, often with an associate or bachelor's degree in a related field. Familiarity with laboratory equipment, analytical instruments (such as spectrophotometers and chromatography systems), and knowledge of safety protocols are essential, and certifications like NELAC or state-specific credentials may be required. Attention to detail, problem-solving abilities, and strong organizational skills distinguish top performers in this role. These competencies ensure accurate water quality analysis, regulatory compliance, and the protection of public health and the environment.

What are people who test water called?

People who test water are commonly called water quality technicians, water analysts, or water chemists. They analyze samples for contaminants, pH levels, and other parameters using laboratory equipment and may require certifications such as a water testing license or environmental science degree.

What career tests water?

A water testing lab employs trained technicians and scientists to analyze water samples for contaminants, pollutants, and quality parameters. They use specialized tools like spectrophotometers and follow safety and certification standards to ensure accurate results.

What is the difference between Water Testing Lab vs Water Quality Technician?

AspectWater Testing LabWater Quality Technician
CertificationsLab certifications, e.g., CLT, NELAP accreditationWater treatment certifications, e.g., TCEQ, EPA certifications
Work EnvironmentLaboratory setting, controlled environmentFieldwork, on-site water testing and treatment facilities
Industry UsageTesting water samples for contaminants and complianceMonitoring and maintaining water quality in treatment plants or systems

While both roles focus on water quality, Water Testing Labs primarily analyze water samples in a lab setting, whereas Water Quality Technicians perform on-site testing and maintenance. Both roles require relevant certifications and are essential in ensuring safe, clean water.

What are popular job titles related to Water Testing Lab jobs in California? For Water Testing Lab jobs in California, the most frequently searched job titles are:
What job categories do people searching Water Testing Lab jobs in California look for? The top searched job categories for Water Testing Lab jobs in California are:
What cities in California are hiring for Water Testing Lab jobs? Cities in California with the most Water Testing Lab job openings:
Water Testing Lab jobs near you
Infographic showing various Water Testing Lab job openings in California as of July 2026, with employment types broken down into 2% As Needed, 76% Full Time, 12% Part Time, 1% Temporary, and 9% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $51,829 per year, or $24.9 per hour.
R & D Lab Coordinator

R & D Lab Coordinator

Cosmetix West

El Segundo, CA • On-site

Full-time

Posted 18 days ago

Job description

Salary: $29-$30/hour

Lab Coordinator Position Summary

The Lab Coordinator ensures the R&D laboratory operates safely and efficiently. This role supports chemists and the process engineer by managing daytoday lab operations, equipment maintenance, and sample preparation to aid in new product development. This role is ideal for someone looking to gain more cosmetics experience.

Key Responsibilities

Lab Operations & Housekeeping

  • Maintain overall organization and cleanliness of the R&D lab, including routine and quarterly housekeeping activities.
  • Ensure all raw materials, retains, and lab supplies are stored, labeled, and returned to their proper locations.

Equipment Maintenance & Utilities

  • Perform daily calibration of the pH meter and document results.
  • Coordinate repair and preventative maintenance for lab equipment; serve as primary contact with internal maintenance or external vendors.
  • Ensure all supplies are in stock and ready for batching (DI Water, IPA, clean beakers, etc)

Consumables & Component Management

  • Monitor and order routine lab supplies (e.g., beakers, stirrers, pipettes, Kimwipes, jars, packaging components, foil, etc.) to avoid stockouts.
  • Maintain an organized inventory of packaging components required for customer samples and internal evaluations.

Sample, Retain, and Stability Support

  • Assist stability coordinator in organizing, labeling, and preparing stability and bulk retains according to SOPs.
  • Crosstrain on stability testing and provide coverage when the Stability Coordinator is absent.

Batch Preparation & Support

  • Assist with preparation of additional bulk requests
  • Support raw material qualification swapouts by making 1:1 comparison batches when formulas need updating
  • Fill components and prepare finished samples in response to customer sample requests.

Inventory Management Existing Raw Materials

  • Maintain an organized inventory of all current, approved RMs in the lab, including refilling, relabeling, and returning materials to the appropriate storage areas.
  • Ensure adequate supply of commonly used RMs; flag lowstock items and coordinate reorders.
  • Maintain uniform and compliant labeling and bottling practices for all inlab RMs.