Top 29 Water treatment system operator Jobs in Riverside, Ca

Water Treatment Plant Operator I
City of Pomona —Pomona, CA
- $71,688 - $87,168 a year
- 8 hour shift
- CPR Certification
- Clean driving record
- Schematics
- AD&D insurance
- Paid holidays
11d
Water Production Operator I/II/III
Water Employee Services Authority —Lake Elsinore, CA
- $31.21 - $49.88 an hour
- Weekends as needed
- Mid-level
- High school diploma or GED
- Driver's License
Water Treatment System Operator
Onterris —Corona, CA
- $25 an hour
- Weekends as needed
- Mid-level
- Driver's License
- Clean MVR report
Water Treatment Operator III/IV/V
City of Redlands —Redlands, CA
- $62,088 - $99,716 a year
- Full-time
- Background check
- Mid-level
- US work authorization
Water Treatment System Operator
Environmental Standards, Inc. —Corona, CA
- $25 an hour
- Weekends as needed
- Mid-level
- Driver's License
- Clean MVR report
Water Treatment Operator III/IV/V
City of Redlands, CA —Redlands, CA
- $62,088 - $99,716 a year
- Full-time
- Background check
- 3 years
- High school diploma or GED
- Paid holidays
- Disability insurance
Operator I
Veolia —Rialto, CA
- $36.18 an hour
- Full-time
- Clean driving record
- Basic math
- English
- Health insurance
- Dental insurance
Quick Apply
12d
Operations & Maintenance Technician III - Equipment Operator
The Metropolitan Water District of Southern California —Riverside, CA
- $38.47 - $50.54 an hour
- Full-time
- Construction site
- CDL A
- Residential
- Health insurance
- Dental insurance
Compost Facility Operator I-III (DOQ)
Inland Empire Utilities Agency —Rancho Cucamonga, CA
- $77,667.20 - $114,999.04 a year
- Full-time
- CDL A
- Mid-level
- High school diploma or GED
- Profit sharing
- AD&D insurance
Boiler Operator
NONG SHIM FOODS INC. —Rancho Cucamonga, CA
- $30 - $42 an hour
- Computer literacy
- Mid-level
- Programmable logic controllers
Quick Apply
Water Supply Operator I
Essel —Pomona, CA
- $20 - $22 a year
- Contract
- Word processing
- Computer literacy
- Writing skills
Quick Apply
Water Resources Manager
Water Employee Services Agency (WESA) —Lake Elsinore, CA
- Full-time
- 7 years
- Engineering
- Bachelor's degree
- AD&D insurance
- Paid holidays
Treatment Plant Operator IV (Special Districts)*
San Bernardino County —San Bernardino, CA
- $37.27 - $51.40 an hour
- Online Application
- Supervising experience
- Military encouraged
- Computer skills
- Referral program
Utility Plant Operator II
Yaamava Resort & Casino at San Manuel —Highland, CA
- Extended hours
- Clean driving record
- Microsoft Excel
- Customer service
Water Treatment Facility Design Engineer
GFT —Irvine, CA
- $90,000 - $200,000 a year
- Full-time
- Hybrid work
- Bachelor of Science
- Office
- Bachelor's degree
- Disability insurance
- Health insurance
Assistant Engineer / Associate Engineer
Rubidoux Community Services District —Riverside, CA
- Full-time
- Customer service
- English
- Research
Field Operations Engineer
Environmental Standards, Inc. —Corona, CA
- $90,000 - $130,000 a year
- Full-time
- Clean driving record
- Office
- 3 years
Maintenance Technician
Home Chef —San Bernardino, CA
- $54,000 - $65,500 a year
- 5 years
- Mid-level
- High school diploma or GED
- Paid holidays
- Disability insurance
Quick Apply
Area Sales Manager - Peru
IMI Plc - Legacy Precision —Rancho Santa Margarita, CA
- Full-time
- Remote
- Microsoft Outlook
- 5 years
- Computer literacy
Project Manager/Engineer - Water Treatment
ENTACT —United States
- Online Application
- Microsoft Excel
- Microsoft Outlook
- Construction site
- Health insurance
- Dental insurance
Quick Apply

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Water Treatment Plant Operator I

City of Pomona -
Pomona, CA

Apply Now

Job Details

Full-time
$71,688 - $87,168 a year
11 days ago

Benefits

AD&D insurance
Paid holidays
Disability insurance
Health insurance
Dental insurance
Flexible spending account
Tuition reimbursement
Vision insurance
Credit union membership
Life insurance
Retirement plan
Pet insurance

Qualifications

Mechanical valves
Computer operation
CPR Certification
Chemical handling safety procedures
Laboratory instruments
Hazardous Waste Operations & Emergency Response Training
Schematics
Equipment repair
Safety regulations
Writing skills
Basic math
Interpreting technical drawings
Employee relationship building
Forklift
Company vehicle operation
High school diploma or GED
Driver's License
First Aid Certification
Mechanical pump maintenance
Dump truck
Industrial pump maintenance and repair
Computer skills
Power tools
Confined Space Certification
Confined space entry safety procedures
Hydraulics
Industrial chemical handling
Hand tools
Material handling equipment operation
Respirator

Full Job Description

VACANCY

APPLY IMMEDIATELY
The first review of applications will take place on July 13, 2026.
Applications submitted on or after July 13, 2026 may still be considered if an insufficient number of qualified candidates are received.

The City of Pomona invites qualified candidates to apply for the Water Treatment Plant Operator I position in the Water Resources Department. This entry-level position plays a critical role in producing and delivering safe, high-quality drinking water to the community. Under immediate supervision, the incumbent monitors and operates water treatment facilities, conducts water quality sampling and testing, adjusts chemical feed systems, operates SCADA and plant equipment, and performs preventive and corrective maintenance on pumps, motors, valves, filters, and related systems.

The Water Treatment Plant Operator I helps ensure compliance with Federal, State, and local drinking water regulations while supporting the reliable operation of the City's treatment facilities and distribution system.

The City is currently seeking to fill one (1) vacancy for Water Treatment Plant Operator I. An eligibility list will be established and may be used to fill future vacancies in this classification that occur during the twelve (12) months following the list's establishment.

The Ideal Candidate

The ideal candidate is a dependable and detail-oriented individual with a strong interest in water treatment operations and public service. They possess mechanical aptitude, a commitment to safety, and the ability to learn complex treatment processes and regulatory requirements. Successful candidates are proactive problem-solvers who can recognize changing operating conditions, maintain accurate records, communicate effectively, and work collaboratively as part of a team.

Why Pomona

The City of Pomona offers a rewarding opportunity to help protect public health by producing and delivering clean, reliable drinking water to more than 145,000 residents. This position provides hands-on experience with advanced treatment technologies, water quality monitoring, SCADA systems, and regulatory compliance, making it an excellent opportunity for individuals seeking a long-term career in the water industry.

The City offers an excellent benefits package featuring a 4/10 work schedule with Fridays off, medical, dental, and vision coverage, CalPERS retirement, deferred compensation options, tuition reimbursement, and optional participation in a Flexible Spending Account (FSA).

This position also provides opportunities for career growth within the Water Treatment Plant Operator series and includes a 5% scheduled salary increase on October 1, 2026.

MINIMUM QUALIFICATIONS TO APPLY

Any combination equivalent to experience and training that would provide the required knowledge, skills, and abilities would be qualifying. A typical way to obtain the knowledge, skills and abilities would be:

Education and Experience:

High school diploma or GED supplemented by specialized training in water maintenance and/or operations.
One year of water treatment experience or two years of water maintenance experience is desirable.

License or Certificate:

Possession of a valid driver's license with good driving record.
Possession of a Grade II Water Treatment Operator Certificate.
Possession of, or must obtain, CPR, First Aid, Respirator, Confined Space and Hazwoper certificates wiithin 11 months of employment.

Knowledge of: Basic mechanical, electrical, and hydraulic principles. Hand and power tools used in routine plant maintenance. Safety precautions pertaining to the work. Safety precautions pertaining to work with hazardous materials. Characteristics of treatment chemicals. Basic arithmetic, including fractions, decimals, and proportions. Safe driving principles and practices. Confined space work practices.
Skill to: Learn to operate a wide variety of equipment and tools used in water treatment and maintenance. Learn to operate the City’s SCADA system. Learn to operate modern office equipment including computer equipment and software. Perform heavy manual labor for extended periods of time. Operate a motor vehicle safely. Operate a wide variety of equipment including, dump trucks, skip loaders, and fork lift as well as tools used in water treatment and maintenance. Learn to make accurate physical and chemical tests. Learn to diagnose complex operating problems.
Ability to: Read and record meters and gages accurately. Recognize unusual or dangerous operating conditions. Perform maintenance and repair to plant equipment including pumps, valves, and electronic monitoring devices. Communicate clearly and concisely, both orally and in writing. Establish, maintain, and foster positive and harmonious working relationships, teamwork, and cooperation with those contacted in the course of work. Work in a confined spaced environment. Handle hazardous material in a safe manner. Use respirators for extended periods of time. Learn to read, interpret, and apply a technical information from manuals, drawings, specifications, layouts, blue prints, and schematics.

ESSENTIAL DUTIES

Operate water treatment plants using electronic and SCADA systems; interpret gages, meters, charts, and graphs; operate pumps, valves, motors, and related equipment; inspect plant equipment.
Calculate and adjust chemical dosages based on test results, plant flows, and plant performance; maintain predetermined water quality parameters; apply mathematical formula to calculate chemical dosages, chemical usage, pump rates, and flow changes.
Validate on-line analyzers with handheld analyzers.
Calibrate and/or repair water analyzing instrumentation to ensure proper operation.
Monitor the transmission and distribution systems; coordinate, advise, and communicate to other Water Sections potential problems and alarms.
Repair and/or replace equipment throughout the water treatment plant including pumps, valves, motors, mixers, wires, and analyzers.
Assist in determining chemicals, laboratory reagents, and equipment needed for operation and/or budget purposes.
Analyze and measure filter media; replace and/or add as needed.
Repair, clean, and maintain facilities and equipment associated with the operation of water treatment plants.
Report equipment failures and complete minor repairs to equipment on sites; requisition materials, equipment, and supplies.
Compile data and maintain records for governmental regulatory monthly and quarterly reports.
Perform daily, weekly, monthly, quarterly, and annual general and preventive maintenance including keeping and preparing accurate and complete records, logs, checklists, and reports.
Inspect and repair water treatment filters.
Perform flow changes at remote stations and coordinate those changes on the SCADA system. Assist in the training of new water treatment plant employees.
Assist in design changes of current and future treatment plants.
Participate in safety training and exercises. May occasionally assist Water Quality Control Technicians.
Perform related duties and responsibilities as assigned.

Essential duties require the following physical skills and work environment:

Ability to sit, stand, walk, kneel, crouch, stoop, squat, crawl, twist, climb, push, pull, lift up to 50 lbs., and wear protective apparel; exposure to heat, noise, outdoors, vibration, confining work space, chemicals, explosive materials, mechanical hazards, electrical hazards, and traffic hazards; ability to travel to different sites and locations; availability for on-call, stand-by, emergency call, and irregular work schedules including week-ends and holidays.

SELECTION PROCESS

Open & Promotional Recruitment

This recruitment is open to external candidates as well as any City of Pomona employee not serving an initial probationary period and any other hourly City employee.

Examination Procedure

Screening of qualifications and "most qualified" is based on the information provided on the official City Application. A resume may be attached to your application, but will not substitute for the completion of your application. Applications that are not entirely completed may be rejected. This recruitment may also establish a list for future vacancies.

Supplemental Questions

To complete your application for this position you will be prompted to respond to supplemental questions. Incomplete responses, false statements, omission, or partial information may result in disqualification from the selection process. Your responses should be consistent with the information provided on your application. The information will be used as part of the application screening and selection process and is designed to help you present your qualifications for this position. This may include a selection step in which your application and supplemental questions are reviewed and scored by a panel of raters familiar with this position.

Apply Now

Refine Your Search

water treatment system operator jobs in riverside, ca

Water Treatment Plant Operator I

Water Production Operator I/II/III

Water Treatment System Operator

Water Treatment Operator III/IV/V

Water Treatment System Operator

Water Treatment Operator III/IV/V

Operator I

Operations & Maintenance Technician III - Equipment Operator

Compost Facility Operator I-III (DOQ)

Boiler Operator

Water Supply Operator I

Water Resources Manager

Treatment Plant Operator IV (Special Districts)*

Utility Plant Operator II

Water Treatment Facility Design Engineer

Assistant Engineer / Associate Engineer

Field Operations Engineer

Maintenance Technician

Area Sales Manager - Peru

Project Manager/Engineer - Water Treatment

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VACANCY

MINIMUM QUALIFICATIONS TO APPLY

ESSENTIAL DUTIES

SELECTION PROCESS

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