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Water System Operator Jobs in California (NOW HIRING)

Essel

Water Supply Operator I

Pomona, CA · On-site

The Water Supply Operator I is an entry-level position requiring immediate to general supervision ... Chemical feed systems * Water storage facilities * Measuring and control systems * Interagency ...

Essel

Water Supply Operator I

Pomona, CA · On-site

The Water Supply Operator I is an entry-level position requiring immediate to general supervision ... Chemical feed systems * Water storage facilities * Measuring and control systems * Interagency ...

Ventura Foods

Waste Water Operator

Ontario, CA · On-site

$28.09 - $34.95/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Operate the waste water system within permit limits set by the City, TCEQ, and EPA. Aid in complying with the Storm Water Pollution Prevention Plan. Maintain the back lot within food safety and ...

Yurok Tribe

Water Operator I

Klamath, CA · On-site

$23.48 - $35.50/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

... supervision of the Chief Water Operator, works to assist with the control, operation, and ... DUTIES & RESPONSIBILITIES 1. Perform the assigned rounds of the water system and treatment plant to ...

Ventura Foods

Waste Water Operator

Ontario, CA · On-site

$28.09 - $34.95/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Operate the waste water system within permit limits set by the City, TCEQ, and EPA. Aid in complying with the Storm Water Pollution Prevention Plan. Maintain the back lot within food safety and ...

Ventura Foods

Waste Water Operator

Ontario, CA · On-site

$28.09 - $34.95/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Operate the waste water system within permit limits set by the City, TCEQ, and EPA. Aid in complying with the Storm Water Pollution Prevention Plan. Maintain the back lot within food safety and ...

Ventura Foods

Waste Water Operator

Ontario, CA

$28.09 - $34.95/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Operate the waste water system within permit limits set by the City, TCEQ, and EPA. Aid in complying with the Storm Water Pollution Prevention Plan. Maintain the back lot within food safety and ...

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Showing results 41-60

All JobsWater System Operator JobsWater System Operator Jobs in California

Water System Operator information

See California salary details

$14

$30

$48

How much do water system operator jobs pay per hour?

As of Aug 15, 2026, the average hourly pay for water system operator in California is $30.53, according to ZipRecruiter salary data. Most workers in this role earn between $21.35 and $35.82 per hour, depending on experience, location, and employer.

What are some common challenges faced by water system operators in maintaining regulatory compliance?

Water System Operators often encounter challenges in keeping up with evolving regulations and ensuring that all testing, monitoring, and reporting requirements are met consistently. This may involve staying updated with local, state, and federal water quality standards, managing the documentation of water sampling, and responding quickly to any detected issues. Operators must also balance routine maintenance with emergency repairs, all while coordinating with team members and regulatory agencies. Proactive communication and ongoing training are key to successfully navigating these challenges.

What is a water system operator?

Water System Operators are professionals responsible for managing and maintaining the equipment, processes, and infrastructure that treat and distribute drinking water or process wastewater. They monitor water quality, operate pumps and valves, test samples, and ensure that water systems comply with government regulations. Their work is essential for public health and environmental protection, as they help provide safe, clean water to communities and manage wastewater disposal.

What are the key skills and qualifications needed to thrive as a water system operator, and why are they important?

To thrive as a Water System Operator, you need a solid understanding of water treatment processes, regulatory compliance, and basic mathematics, typically supported by a high school diploma and state certification. Familiarity with SCADA systems, water testing equipment, and compliance documentation is essential for daily operations. Strong problem-solving, attention to detail, and effective communication skills help operators respond to emergencies and collaborate with team members. These skills ensure safe, reliable water delivery, regulatory compliance, and protection of public health.

What is the difference between Water System Operator vs Water Treatment Plant Operator?

AspectWater System OperatorWater Treatment Plant Operator
CertificationsWater operator licenses, state-specific certificationsWater operator licenses, state-specific certifications
Work EnvironmentWater distribution systems, pipelines, reservoirsWater treatment facilities, filtration, chemical handling
Industry UsageMunicipal water supply, public utilitiesMunicipal water treatment, industrial facilities

Both roles require similar certifications and often work within municipal water systems. The main difference is that Water System Operators focus on maintaining and operating water distribution networks, while Water Treatment Plant Operators specialize in treating water at treatment facilities. Understanding these distinctions helps job seekers identify the right career path within the water industry.

What cities in California are hiring for Water System Operator jobs?

Cities in California with the most Water System Operator job openings:

What are popular job titles related to Water System Operator jobs in CA?

For Water System Operator jobs in CA, the most frequently searched job titles are:

Water System Operator jobs near you
Infographic showing various Water System Operator job openings in California as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 13% Part Time, 2% Temporary, and 2% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $63,508 per year, or $30.5 per hour.

Water Supply Operator I

Essel

Pomona, CA • On-site

Full-time

Re-posted 24 days ago

Job description

The Water Supply Operator I is an entry-level position requiring immediate to general

supervision.

ESSENTIAL DUTIES AND RESPONSIBILITIES:

  • Operates and monitors a variety of water supply and treatment equipment such as:
    • Pumping systems
    • Chemical feed systems
    • Water storage facilities
    • Measuring and control systems
    • Interagency control valves and meters
    • Pressure Reducing/Sustaining Valves
  • Assists with the maintenance of plant equipment and facilities
  • Performs water level measurements on groundwater wells
  • Loads and unloads chemicals
  • Performs basic laboratory analytical techniques on water samples
  • Collects samples for analytical purposes
  • Performs calculations related to dosing, flow rates, pressure and other weights and measures associated with water supply and treatment operations
  • Complies with all safety standards and practices as they pertain to equipment, facility operations and chemical handling
  • Available for emergency response, 24 hours/day, seven days/week
  • Must reside within 25 miles of the nearest water system boundary where assigned in order to respond to emergencies.
  • Performs other duties as assigned
  • The above job description is not intended to be, nor should it be construed as, exhaustive of all responsibilities, skills or competencies associated with this job.

MINIMUM QUALIFICATIONS

  • High school diploma or equivalent
  • Familiar with computer applications such as Windows, word processing, spreadsheets

POSITION DESCRIPTION

  • SWRCB Water Distribution Operator 1 certification – required if applicant does not hold a valid T1 certification.
  • SWRCB Water Treatment Plant Operator 1 certification preferred at time of hire, or must obtain within 18 months of employment or position start date.
  • Good communication (both written and verbal) and organizational skills
  • Valid California driver license
  • May include working in all weather conditions, during all hours of the day.
  • Physical demands include but are not limited to standing, climbing, walking, lifting, bending, pulling and/or pushing, grasping, reaching, stooping and crouching, sitting, typing, walking, reading, writing, color determination, speaking and listening for extended periods of time.

TECHNICAL SKILLS AND EXPERIENCE

  • One year as a Water Distribution Operator or two years experience in the water utility

industry OR a combination of water utility experience and education that demonstrates a moderate level of knowledge and understanding of water distribution, supply and treatment operations OR an Associate degree in Water Technology, Distribution, or Treatment, or a similar math and science-based curriculum from an accredited educational institution or program

  • Basic math skills
  • Knowledge of basic plumbing skills
  • Understanding of safe, efficient and effective work practices and procedures.