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Water Testing Laboratory Jobs in California (NOW HIRING)

Momar Inc

Water Treatment Technician

Valencia, CA · On-site

With an in-house laboratory and a team of experienced chemists, we provide full-service water treatment support, including routine and specialized testing to ensure safe, efficient, and compliant ...

City of Burbank

WATER QUALITY ANALYST

Burbank, CA · On-site

$102K - $141K/yr

... testing of water samples in the laboratory and in the field; reviews laboratory logs and records for accuracy and prepares various reports; develops and implements the water laboratory quality ...

City of Burbank, CA

WATER QUALITY ANALYST

Burbank, CA · On-site

$102K - $141K/yr

... testing of water samples in the laboratory and in the field; reviews laboratory logs and records for accuracy and prepares various reports; develops and implements the water laboratory quality ...

City of Redlands

Laboratory Manager

Redlands, CA · On-site

$115K - $143K/yr

Conduct special examinations and analysis to assist with water and wastewater plant problems and studies; develop testing/analysis schedules. Participate in quality control of laboratory procedures ...

City of Redlands, CA

Laboratory Manager

Redlands, CA · On-site

$115K - $143K/yr

Conduct special examinations and analysis to assist with water and wastewater plant problems and studies; develop testing/analysis schedules. * Participate in quality control of laboratory procedures ...

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How much do water testing laboratory jobs pay per hour?

As of Aug 28, 2026, the average hourly pay for water testing laboratory in California is $22.24, according to ZipRecruiter salary data. Most workers in this role earn between $18.03 and $23.94 per hour, depending on experience, location, and employer.

What is a water testing laboratory?

A water testing laboratory is a specialized facility where scientists and technicians analyze water samples to assess their quality and safety. These labs test for contaminants such as bacteria, heavy metals, chemicals, and other pollutants to ensure water meets regulatory standards for drinking, environmental, or industrial use. Water testing laboratories play a critical role in public health by helping to identify and address water quality issues. Results from these labs are used by government agencies, businesses, and individuals to make informed decisions about water safety and treatment.

What are the key skills and qualifications needed to thrive in a water testing laboratory role?

To thrive in a Water Testing Laboratory role, you need a background in chemistry, biology, or environmental science, typically supported by a relevant degree or certification in laboratory technology. Familiarity with analytical instruments such as spectrophotometers, chromatographs, and lab information management systems (LIMS) is essential. Attention to detail, problem-solving, and strong organizational skills distinguish top performers in this field. These competencies ensure accurate test results, compliance with regulatory standards, and the protection of public health.

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

Professionals in a water testing laboratory often encounter challenges such as managing tight deadlines for sample analysis, ensuring strict adherence to quality control protocols, and keeping up with evolving regulatory standards. Maintaining accuracy while processing a high volume of samples can be demanding, especially during peak periods. Effective time management, continuous training on new testing methods, and strong teamwork are essential for overcoming these challenges and maintaining high standards of data reliability.

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

AspectWater Testing LaboratoryWater Quality Technician
CertificationsLaboratory certifications, e.g., CLIA, ISOWater treatment and safety certifications, e.g., EPA, state licenses
Work EnvironmentLaboratories, controlled environmentsField sites, treatment plants, water sources
Industry UsageTesting water samples for contaminants and complianceMonitoring and maintaining water quality in the field

While both roles focus on water quality, Water Testing Laboratory professionals analyze samples in labs, ensuring accuracy and compliance, whereas Water Quality Technicians work in the field to monitor and maintain water systems. Both require relevant certifications and are essential in water industry operations.

How to become a water testing laboratory technician?

To become a water testing laboratory technician, candidates typically need a high school diploma or equivalent, with some positions requiring an associate degree or certification in environmental science, chemistry, or a related field. Training on laboratory equipment and testing procedures is often provided on the job, and familiarity with safety protocols and analytical tools is important for success in this role.

What does a water testing laboratory technician do?

A water testing laboratory technician collects water samples and conducts tests to analyze water quality, including checking for contaminants, pH levels, and chemical composition. They use laboratory equipment and follow safety protocols, often requiring knowledge of testing procedures and certifications such as EPA or state-specific licenses.

What are popular job titles related to Water Testing Laboratory jobs in California?

For Water Testing Laboratory jobs in California, the most frequently searched job titles are:

What job categories do people searching Water Testing Laboratory jobs in California look for?

The top searched job categories for Water Testing Laboratory jobs in California are:

What cities in California are hiring for Water Testing Laboratory jobs?

Cities in California with the most Water Testing Laboratory job openings:

Water Testing Laboratory jobs near you
Infographic showing various Water Testing Laboratory job openings in California as of August 2026, with employment types broken down into 1% As Needed, 88% Full Time, 8% Part Time, 2% Contract, and 1% Nights. Highlights an 87% Physical, 3% Hybrid, and 10% Remote job distribution, with an average salary of $46,250 per year, or $22.2 per hour.

Part-Time Water Sampling Technician

I-2-I Solutions, Inc

San Diego, CA • On-site

Part-time

Posted 11 days ago

Job description

Part-Time Water Sampling Technician
I-2-I Solutions, Inc. (I-2-I) is seeking a Part-Time Water Sampling Technician to collect critical and utility water samples from designated sampling ports within the Sterile Processing Department (SPD) at Naval Medical Center San Diego (NMCSD). The technician will perform routine water sampling in accordance with established procedures, contract requirements, applicable AAMI standards, and facility safety requirements.
The collected samples will be used to evaluate water quality and support the safe and uninterrupted operation of water systems serving the Sterile Processing Department.
Key Responsibilities
  • Collect critical and utility water samples from designated sample ports according to the required monthly and quarterly testing schedules.
  • Collect samples from point-of-use critical water, reverse-osmosis critical water, and utility water sources.
  • Follow established sampling procedures and applicable ANSI/AAMI ST108 guidelines to ensure accurate and representative sample collection.
  • Perform or coordinate required water quality testing for collected samples in accordance with the contract requirements.
  • Accurately document sample information, including sample location/port, date, time, sample type, testing parameters, and other required information.
  • Properly label, handle, preserve, package, and transport samples for laboratory analysis as required.
  • Maintain sampling equipment in proper working condition and ensure applicable test equipment is appropriately calibrated.
  • Maintain cleanliness, organization, and safe working conditions while performing sampling activities within the medical facility.
  • Comply with all applicable facility security, safety, infection-control, PPE, and access requirements.
  • Report abnormal sampling conditions, failed or out-of-range results, sampling issues, or other water-quality concerns to the designated I-2-I supervisor.
  • Assist with re-testing when required due to failed or out-of-range results.
  • Maintain required sampling records, field service documentation, and other project records.
  • Provide timely information and documentation necessary for laboratory reports and contract deliverables.
  • Support unscheduled or emergency water sampling following water interruptions, system repairs, disinfection, or other distribution-system events, when requested and authorized.
  • Be available for potential on-site re-testing within the required response timeframe when results fall outside applicable AAMI standards.

Required Water Testing
Water testing will be performed according to the fixed schedule established under the contract and applicable AAMI testing frequency guidelines. The scope requires monthly critical water testing, monthly reverse-osmosis critical water testing, and quarterly utility water testing.
Monthly Point-of-Use Critical Water Testing
Monthly testing includes:
  • pH - Power of Hydrogen
  • Conductivity / Total Dissolved Solids (TDS)
  • Total Alkalinity
  • Total Hardness
  • Bacteria / Microbial Level
  • Endotoxin

Monthly Reverse-Osmosis Critical Water Testing
Monthly testing of designated reverse-osmosis critical water sample ports includes:
  • pH - Power of Hydrogen
  • Conductivity / Total Dissolved Solids (TDS)
  • Total Alkalinity
  • Total Hardness
  • Bacteria / Microbial Level
  • Endotoxin

Quarterly Point-of-Use Utility Water Testing
Quarterly testing includes:
  • pH - Power of Hydrogen
  • Conductivity / Total Dissolved Solids (TDS)
  • Total Hardness
  • Total Alkalinity
  • Bacteria / Microbial Level

Testing is performed from the appropriate water sources in accordance with the most current applicable AAMI ST108 standards.
Unscheduled and Emergency Sampling
The technician may also be required to support unscheduled water sampling following:
  • Water interruptions or service disruptions
  • Repairs to the water distribution system
  • Disinfection activities
  • Restoration of water service
  • Boil-water situations
  • Other emergency or system-related events

When requested, samples will be collected from affected sample ports using the applicable routine testing parameters. The contract projects approximately one unscheduled event per quarter (four annually).
Qualifications:
  • High school diploma or equivalent required; additional education or training in environmental science, water quality, laboratory science, healthcare, or a related technical field preferred.
  • Prior experience in water sampling, water quality testing, laboratory sampling, medical facility water systems, Sterile Processing Department water systems, or related work is required.
  • Familiarity with water quality sampling procedures and laboratory sample handling.
  • Knowledge of ANSI/AAMI ST108 or comparable healthcare water-quality standards preferred.
  • Experience collecting samples from designated sample ports and points of use preferred.
  • Ability to accurately collect, label, document, package, and transport water samples.
  • Strong attention to detail and accuracy in sample identification and recordkeeping.
  • Ability to follow established sampling procedures, safety requirements, and facility protocols.
  • Ability to work professionally within a hospital/medical-center environment.
  • Ability to communicate effectively with facility personnel and the I-2-I project team.
  • Reliable and able to consistently meet the required monthly sampling schedule.
  • Ability to work independently while coordinating sampling activities with facility personnel.
  • Ability to respond to occasional unscheduled or emergency sampling requirements, when needed.
  • Must be able to satisfy applicable Naval Medical Center San Diego access and security requirements. The SOW requires field personnel to complete applicable base access requirements and maintain appropriate identification while on the NMCSD premises.

Work Schedule
  • Part-time position
  • Routine sampling is scheduled for the first Monday of each month.
  • If the first Monday falls on a recognized Federal holiday, sampling will occur on the next business day.
  • Routine work is performed between 8:00 AM and 4:00 PM Pacific Time.
  • Additional quarterly sampling activities will be performed according to the established schedule.
  • Occasional unscheduled or emergency sampling may be required following water-system interruptions, repairs, disinfection, or other events.
  • Additional on-site support may be required within 24 hours when notified of a failed or out-of-range water quality result.

Compensation
Hourly or per-sample rate, as applicable, in accordance with contract terms.
Work Location
Naval Medical Center San Diego (NMCSD)
Sterile Processing Department (SPD)
Building One, Ground Floor
34800 Bob Wilson Drive
San Diego, CA 92134
The position is in person and requires the technician to report to the Sterile Processing Department for check-in and check-out when performing services.
Physical and Work Requirements
The position requires the technician to travel throughout the designated medical facility to access assigned sampling ports and water sources. The technician must be able to safely handle sampling containers, testing equipment, and related materials and perform sampling activities in a healthcare environment.
The technician must comply with NMCSD safety, security, access, identification, PPE, and facility requirements. The SOW requires field personnel to maintain appropriate professional behavior and attire and comply with facility safety requirements while on site.
The technician may also be required to transport samples and related materials and maintain appropriate documentation associated with each sampling event.

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