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Water Testing Lab Jobs in California (NOW HIRING)

Ecolab

Lab Technician

City Of Industry, CA

$49K - $74K/yr

Conduct product performance and field testing * Approve, hold, and/or reject products based on ... water, safe food, and healthy environments * The ability to make an impact and shape your career ...

Ecolab

Lab Technician

California City, CA · On-site

$49K - $74K/yr

Conduct product performance and field testing * Approve, hold, and/or reject products based on ... water, safe food, and healthy environments * The ability to make an impact and shape your career ...

Tryfacta

Be Seen First

Lab Technician

San Jose, CA · On-site

$31 - $32/hr

Job Title Temporary Lab Technician 1 with a Work with a large, mission-driven public agency that ... Perform routine water analysis, particularly microbiological testing, with minimal supervision.

New

ASK Consulting

Be Seen First

NAND Test Lab Operations Support Technician (277959)

Rancho Cordova, CA · On-site

$25 - $29/hr

Can translate Tester & Advantest Handler Test module Interface Hardware requirements and ... process chilled water systems. * Can apply Semiconductor Reliability, Availability ...

New

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 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 ...

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 ...

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

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 ...

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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 Jun 25, 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 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 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 June 2026, with employment types broken down into 80% Full Time, 8% Part Time, 8% Contract, and 4% Nights. Highlights an 100% In-person job distribution, with an average salary of $51,829 per year, or $24.9 per hour.
Lab Technician

Lab Technician

Ecolab

City Of Industry, CA

$49K - $74K/yr

Full-time

Medical, Dental, Vision, Retirement

Posted 7 days ago

Ecolab rating

7.6

Company rating: 7.6 out of 10

Based on 196 frontline employees who took The Breakroom Quiz

49th of 90 rated chemical manufacturers

Job description

Want to build a brighter, bolder future and cultivate your career? Join Ecolab's team and help create a world in which we all thrive.

Ecolab is seeking a Lab Technician to join our team in City of Industry, CA. As a Lab Technician, you'll perform biological and chemical analyses, support formulation development, and contribute to continuous improvement by evaluating processes and ensuring compliance with regulatory standards.

How You'll Make an Impact:

  • Assist in development of formulations fora variety ofapplications

  • Responsible for all steps of routine experimentation including sample prep, equipment orientation, instrument control, data processing, and analysis

  • Conduct product performance and field testing

  • Approve, hold, and/or reject products based on laboratory analysis versus specifications

  • Ensure compliance to current regulatory requirements, following GMP guidelines for data reporting, and preparation of validation protocols, raw data generation, and final reports

  • Conduct reexamination of borderline results, research technical literature, and communicate opportunities for process improvements

  • Multi-task between many projects to ensure the various completion deadlines are met

  • Recommend testing parameters, and complete experiments and project work as assigned

  • Provide analytical and technical support for quality related product investigations

  • Complete data reviews for out-of-specification test results, issuing SPC charts of historical results

  • Optimize and recommend lab improvements to support 5S initiatives

  • Other duties as assigned

Position Details:

  • Plant Location:City of Industry, CA

  • Work Week & Shift:Monday - Friday, 6:00am - 2:30pm

Minimum Qualifications:

  • Bachelor's degree in Chemistry, Biology, Chemical Engineering, or relevant science discipline

  • Immigration sponsorship is not offered for this role

Preferred Qualifications:

  • Strong background in scientific skills and lab analysis

  • Familiarity with laboratory safety procedures/regulations

  • Proficiency with Microsoft Office applications

  • Strong verbal and written communication skills

What's in it For You:

  • Starting on Day 1: Access to our comprehensive benefits package including medical, dental, vision, matching 401K, company-paid pension, stock purchase plan, paid parental leave, select discounted childcare resources, and more!

  • The opportunity to take on some of the world's most meaningful challenges, helping customers achieve clean water, safe food, and healthy environments

  • The ability to make an impact and shape your career with a company that is passionate about growth

  • The support of an organization that believes it is vital to include and engage diverse people, perspectives, and ideas to achieve our best

About Ecolab:

At Ecolab, we prioritize our talent-first philosophy by creating the most capable and diverse team to excel at our nearly three million customer sites. Building on a century of innovation, our 48,000 associates help deliver comprehensive science-based solutions, data-driven insights and world-class service to advance food safety, maintain clean and safe environments, and optimize water and energy use, and improve operational efficiencies and sustainability for customers in the food, healthcare, life sciences, hospitality and industrial markets in more than 170 countries around the world. Our solutions not only enhance operational efficiency but also contribute to sustainability and public health, making a positive impact on the world. We are committed to eliminating unnecessary complexities and embracing a beginner's mindset, continuously seeking new perspectives and innovative solutions to stay ahead in a rapidly changing world.

Annual or Hourly Compensation Range

The pay range for this position is $49,900.00 - $74,700.00. Many factors are taken into consideration when determining compensation, such as experience, education, training, geography, etc. We comply with all minimum wage and overtime laws.

Benefits

Ecolab strives to provide comprehensive and market-competitive benefits to meet the needs of our associates and their families.Click here to see our benefits.

If you are viewing this posting on a site other than our Ecolab Career website, view our benefits at jobs.ecolab.com/working-here.


Potential Customer Requirements Notice

To meet customer requirements and comply with local or state regulations, applicants for certain customer-facing roles may need to:

- Undergo additional background screens and/or drug/alcohol testing for customer credentialing.


Americans with Disabilities Act (ADA)

Ecolab will provide reasonable accommodation (such as a qualified sign language interpreter or other personal assistance) with our application process upon request as required to comply with applicable laws. If you have a disability and require accommodation assistance in this application process, please visit the Recruiting Support link in the footer of each page of our career website.

What Ecolab employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Ecolab logo

About Ecolab

Sourced by ZipRecruiter

Ecolab is a global sustainability leader offering water, hygiene and infection prevention solutions and services that protect people and the resources vital to life.

Industry

Manufacturing

Company size

10,000+ Employees

Headquarters location

Saint Paul, MN, US

Year founded

1923

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