Water Treatment Technician Jobs in California
Water Treatment Technician jobs in California are concentrated in municipal water utilities, regional sanitation districts, and large-scale agricultural irrigation systems, with demand at every level from entry-grade operators to senior plant supervisors. The most active hiring markets are Los Angeles, Sacramento, and the San Francisco Bay Area, where agencies such as the Los Angeles Department of Water and Power, East Bay Municipal Utility District, and the Metropolitan Water District of Southern California maintain large ongoing workforces. The most in-demand specialties in California right now are distribution system operation, membrane filtration, and water quality monitoring. See the openings below and apply to the ones that match your experience.
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California Water Services is located in Coalinga California. Founded in 1988, the Company primarily served customers in Western Fresno County. Today the Company services customers throughout California, Southern Oregon and southwestern Arizona. The Company provides water treatment services to Municipal, industrial and Agricultural customers. We employ professionals with a range of skills and qualifications, which allows us to provide the high standard of service our Customers expect.
Who should apply: Individuals with integrity, who are self-motivated, hardworking, dependable, organized and enjoy a stable work schedule. Must be willing to work in a fast-paced environment as part of a team or independently as part of a team effort. Individuals who believe that doing the minimum expected is not acceptable, will thrive in the position.
Job Description: The position will expose the candidate to key aspects of our business. The individual hired will begin their work day at our office in Coalinga.
· Water treatment system operation
· Wastewater treatment system operation
· Distribution system operation
The individual hired will report to our Water & Wastewater Department Manager, who in turn would provide direction on tasks/projects. The Individual hired will be empowered to be creative, to bring forth their own ideas to the position.
Skills/Qualities: The ideal candidate would possess the following skills/qualities:
· Self-Starter
· Team player, works well with others
· Interacts effectively with people and groups
· Upbeat & positive attitude with great energy
· Must have ability to prioritize, multi-task and meet deadlines
· Excellent written and verbal communication skills
· Sharp, quick, dedicated and innovative problem solver
· Proactive rather than reactive
· Must be a creative thinker (think outside the box), results oriented, and focused
· Must be organized and detailed oriented
· Core values, exceptional work ethic and continuous self-improvement
· Flexible and interested in learning in order to adjust to changing role as organization grows
· Highly organized, ability to prioritize a varied and fast-changing workload
· Persistent and conscientious
· Motivated, high achiever
· Proficiency in MS Office Suite (e.g. Excel, Word, Outlook) and general computer literacy
Benefits:
· Medical, Dental, Vision, and Short Term Disability Benefit (Company pays a set amount towards premiums of Employee's choice)
· $50,000 Life Insurance Policy
· Paid time off
· Sick leave
· 401K
· 8 Paid Holidays
· Possible mileage reimbursement if residing further than 25 miles from Coalinga, CA
· Salary is negotiable based on candidates experience
Job Type: Full-time
Pay: From $18.00 per hour
Benefits:
- 401(k)
- Dental insurance
- Health insurance
- Life insurance
- Paid time off
- Professional development assistance
- Vision insurance
Application Question(s):
- If offered a position, what would your starting wage requirement be?
- This position requires three State certifications. If you do not already have them, are you willing to study on your own time to obtain your state certifications?
- Please calculate and provide your answer to the following math problem.
What is the average of the following numbers: 10, 20, 30, 40.
- Do you currently live in Coalinga?
Education:
- High school or equivalent (Required)
Experience:
- work: 5 years (Preferred)
License/Certification:
- California Driver's License (Required)
Work Location: In person
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Find JobsWater Treatment Technician Jobs by City in California
Where California roles are concentrated, by current openings.
Water Treatment Technician Job Market in California
A snapshot from current California openings, updated as new roles post.
Who's Hiring



Top Industries Hiring
- Consulting & Professional Services
What California Employers Look For
The qualifications that appear most often in water treatment technician jobs across California.
- Active California Water Treatment Operator certification issued by the State Water Resources Control Board
- Experience operating and maintaining water treatment or filtration plant equipment
- Familiarity with California Title 22 drinking water regulations and compliance reporting
- Ability to collect, test, and record water quality samples accurately
- Valid California driver license for travel between facilities and field sites
- Physical ability to work outdoors and in confined spaces under varying conditions
Water Treatment Technician Jobs in California: Frequently Asked Questions
How do you become a water treatment technician in California?
You become a water treatment technician in California by earning a Water Treatment Operator certificate from the State Water Resources Control Board, which administers the certification program and its exams. Entry-level candidates typically need a high school diploma or GED, then pass the Grade T1 exam to work under supervision while gaining plant hours. Community colleges throughout California, including those in the Los Angeles and Sacramento areas, offer water technology programs that prepare candidates for the exam.
Which companies hire water treatment technicians in California?
California water treatment technician roles are posted by GFT, Veolia, and Arcadis and others right now, based on current listings on Migrate Mate as of August 2026. California's size means hiring comes from a mix of large municipal utilities, regional water districts, and private operations and maintenance contractors that serve public agencies.
Which California cities have the most water treatment technician jobs?
Los Angeles, San Jose, and San Diego have the most water treatment technician openings in California. The concentration in larger metros reflects the scale of their municipal water systems and the regional agencies that serve surrounding communities, while smaller cities on the list often sit near major infrastructure projects or serve as hubs for agricultural water management in California's Central Valley.
Are there remote water treatment technician jobs in California?
Yes, but they're rare. About 83% of water treatment technician openings tied to California are remote or hybrid as of August 2026, because most of the work requires hands-on operation, equipment maintenance, and on-site water sampling. The portions of the role most likely to allow remote work are data reporting, compliance documentation, and SCADA monitoring for technicians at larger facilities with advanced control systems.
How can I get hired as a water treatment technician in California with little or no experience?
The most realistic entry path is applying for a utility worker or plant operator aide position at a California municipal water agency, which typically does not require prior certification and provides on-the-job hours that count toward your Grade T1 exam eligibility. Large agencies such as the Los Angeles Department of Water and Power and Sacramento's water utility run structured entry programs for new hires. Completing a water technology certificate program at a California community college strengthens your application significantly before you apply.
Where can I find and apply to water treatment technician jobs in California?
You can find and apply to water treatment technician jobs in California on Migrate Mate, which lists current California openings from utilities, districts, and private contractors across the state. Search the listings for roles that fit your certification grade and experience level, then apply directly to the ones that match.
See All 20 Water Treatment Technician Jobs in California
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