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Ontario, CA
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"reverse osmosis"
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Ontario, CA
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100
"reverse osmosis"
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Ontario, CA
in last 30 days
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Date
Last 30 days
Senior Water Chemistry Engineer Systems & Sanitation
NEXT STEPS
Jacuzzi Brands
Chino, CA
June 17th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
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Water/Wastewater Technician
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City Of Ontario
Ontario, CA
June 17th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Water/Wastewater Technician
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City Of Ontario Ca
Ontario, CA
June 11th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Water/Wastewater Technician
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City Of Ontario California
Ontario, CA
June 12th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Field Service Engineer, Water Treatment ($10K Sign on Bonus)
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Xylem
Mira Loma, CA
June 18th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
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Water Treatment Plant Operator
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Los Angeles County Sanitation Districts
Fontana, CA
June 20th, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
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Stormwater Maintenance Crew Leader
APPLY
Government
Pomona, CA
June 27th, 2026
Water and Wastewater Treatment Plant and System Operators
Water and Sewer Line and Related Structures Construction
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Onsite Waste Water Operator - 2nd Shift, Health & 401(k)
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Ventura Foods
Ontario, CA
June 24th, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
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Wastewater Plant Operator OIT / I / II
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GovernmentJobs.com
Fontana, CA
June 14th, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
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Water Meter Field Technician II
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City Of Burlington Vt
Ontario, CA
June 8th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Water Treatment Plant Operator I
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City Of Pomona California
Pomona, CA
June 26th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Water Distribution Operator I - On-Call Field Utility Tech
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Waterwisepro
Fontana, CA
June 20th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Water Distribution Operator I / SGV and Fontana Water Company
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Waterwisepro
Fontana, CA
June 20th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Lead Wastewater Treatment Plant Operator
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Los Angeles County Sanitation Districts
Fontana, CA
June 21st, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
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Entry-Level Water Distribution Operator
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Essel
Pomona, CA
June 24th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Water Treatment Plant Operator I
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City Of Pomona
Pomona, CA
June 26th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Stormwater Field Operations Lead
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City Of Pomona
Pomona, CA
June 20th, 2026
Water/Wastewater Engineers
Water and Sewer Line and Related Structures Construction
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Senior Engineer
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Apwa Inland Empire Branch
Chino Hills, CA
June 20th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
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WASTEWATER PLANT OPERATOR I or WASTEWATER PLANT OPERATOR I TRAINEE
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GovernmentJobs.com
Mira Loma, CA
June 13th, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
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WASTEWATER PLANT OPERATOR I or WASTEWATER PLANT OPERATOR I TRAINEE
NEXT STEPS
City Of Riverside
Jurupa Valley, CA
June 30th, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
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Mechanic IV
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Government
Chino, CA
June 29th, 2026
Maintenance and Repair Workers, General
Water Supply and Irrigation Systems
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Intern (Facilities)
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Inland Empire Utilities Agency
Chino Hills, CA
June 20th, 2026
Facilities Managers
Water Supply and Irrigation Systems
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Engineer (Public Works) - Water & Wastewater Projects
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American Water Works Association
Jurupa Valley, CA
June 26th, 2026
Water/Wastewater Engineers
Water and Sewer Line and Related Structures Construction
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Surface Water Department Manager
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Michael Baker International
Ontario, CA
June 26th, 2026
Water/Wastewater Engineers
Engineering Services
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Staff Chemical Engineer - Water Systems and Chemistry
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Jacuzzi Brands
Chino, CA
June 20th, 2026
Chemical Engineers
Water Supply and Irrigation Systems
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Staff Water Design Engineer - Southern California
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Wsc
Ontario, CA
June 30th, 2026
Water/Wastewater Engineers
Engineering Services
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California Water/Wastewater Practice Lead
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Michael Baker International
Ontario, CA
June 29th, 2026
Water/Wastewater Engineers
Engineering Services
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Utility Associate Civil Engineer - Water Resources Projects
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City Of Pomona
Pomona, CA
June 20th, 2026
Water/Wastewater Engineers
Water and Sewer Line and Related Structures Construction
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Internship Trades Program
APPLY
Government
Chino, CA
July 2nd, 2026
Control Systems Analyst I-II (DOE)
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DiversityJobs
Chino, CA
June 18th, 2026
Computer Systems Analysts
Water Supply and Irrigation Systems
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Senior Hydromechanical Engineer - Hydropower & Pump Systems
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Mead & Hunt
Ontario, CA
June 17th, 2026
Water/Wastewater Engineers
Engineering Services
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Intern (Planning & Resources)
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Inland Empire Utilities Agency
Chino Hills, CA
June 17th, 2026
Water Resource Specialists
Administration of Air and Water Resource and Solid Waste Management Programs
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Senior Design Engineer
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Essel Environmental
Pomona, CA
June 25th, 2026
Civil Engineers
Engineering Services
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Residential Sales Representative
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Crh California Water
Ontario, CA
June 20th, 2026
Sales Representatives of Services, Except Advertising, Insurance, Financial Services, and Travel
Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers
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Operator, Anodizing Waste Treatment 1
NEXT STEPS
Samuel Son Company
Fontana, CA
June 24th, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
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Operator, Anodizing Waste Treatment 1
APPLY
Samuel Son Usa
Fontana, CA
June 25th, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
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Operator, Anodizing Waste Treatment 1
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Samuel Son
Fontana, CA
June 26th, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
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Intern (Groundwater Recharge)
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Inland Empire Utilities Agency
Chino Hills, CA
June 18th, 2026
Hydrologists
Water Supply and Irrigation Systems
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Residential Sales Representative
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Hallswater
Ontario, CA
June 28th, 2026
Sales Representatives of Services, Except Advertising, Insurance, Financial Services, and Travel
Water Supply and Irrigation Systems
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Senior Project Manager - SCADA
NEXT STEPS
Project Partners
Chino, CA
June 15th, 2026
Project Management Specialists
Water Supply and Irrigation Systems
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