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Ontario, CA
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"reverse osmosis"
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Ontario, CA
in last 30 days
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99
"reverse osmosis"
jobs
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Ontario, CA
in last 30 days
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Date
Last 30 days
Water Treatment Lead Operator
APPLY
City Of Chino
Chino Hills, CA
L5 Senior
September 16th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Water Reuse Co-Op Intern Lab & Field Experience
APPLY
Jimmy Jazz
Pomona, CA
L1 Intern
September 2nd, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
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MWD Water Reuse Co-Op Intern - MWD
APPLY
Jimmy Jazz
Pomona, CA
L1 Intern
September 2nd, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
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Senior Engineer (Asset Management)
APPLY
Inland Empire Utilities Agency
Chino Hills, CA
L7 Manager
September 16th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
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Senior Engineer (Asset Management)
APPLY
Inland Empire Utilities Agency
Chino, CA
L7 Manager
September 18th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
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Remote Senior Treatment Project Manager - 2528.36
APPLY
Wade Trim
Pomona, CA
Remote
L5 Senior
September 6th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
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Water Systems Operations Supervisor / Rubidoux CSD
APPLY
Waterwisepro
Jurupa Valley, CA
L7 Manager
September 7th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Water Systems Operations Supervisor
APPLY
Ncsl International
Jurupa Valley, CA
L7 Manager
August 29th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Chief Plant Operator Water Systems Supervisor
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Sacbar
Jurupa Valley, CA
L7 Manager
August 29th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Water Systems Technician I/II (DOQ)
APPLY
Inland Empire Utilities Agency
Chino, CA
L5 Senior
August 27th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Water Systems Operations Supervisor
APPLY
Sacbar
Jurupa Valley, CA
L7 Manager
September 4th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Water Operations Supervisor & Chief Plant Operator
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Waterwisepro
Jurupa Valley, CA
L7 Manager
September 7th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Chief Plant Operator: Water Systems Leader
APPLY
American Water Works Association
Jurupa Valley, CA
L8 Director
August 31st, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Water Systems Technician I/II (DOQ)
APPLY
Inland Empire Utilities Agency
Chino Hills, CA
L5 Senior
August 27th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Water Systems Operations Lead & Chief Plant Operator
APPLY
Ncsl International
Jurupa Valley, CA
L7 Manager
August 29th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
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Sr. Project Manager, Water Wastewater
APPLY
Gannett Fleming
Ontario, CA
L7 Manager
August 26th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
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Sr. Project Manager, Water Wastewater
APPLY
Gannett Fleming
Chino Hills, CA
L7 Manager
August 25th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
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Wastewater Treatment Operator I
APPLY
Innout
Chino Hills, CA
L2 Entry
September 4th, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
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Field Service Technician 4
APPLY
Xylem
Jurupa Valley, CA
L5 Senior
August 27th, 2026
Installation, Maintenance, and Repair Workers, All Other
Water Supply and Irrigation Systems
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Remote Wastewater Sr. Project Manager / Technical Manager - Florida
APPLY
GrabJobs
Fontana, CA
Remote
L6 Lead
September 16th, 2026
Water/Wastewater Engineers
Sewage Treatment Facilities
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Inland Empire Utilities Agency - Director of Planning and Resources
APPLY
Alliance Resource Consulting
Chino Hills, CA
L7 Manager
September 12th, 2026
Water Resource Specialists
Water Supply and Irrigation Systems
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Remote Water & Wastewater treatment Analytics Developer
APPLY
GrabJobs
Fontana, CA
Remote
L5 Senior
September 7th, 2026
Data Scientists
Water Supply and Irrigation Systems
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Field Service Technician 4
APPLY
Xylem
Eastvale, CA
L5 Senior
September 1st, 2026
Installation, Maintenance, and Repair Workers, All Other
Water Supply and Irrigation Systems
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Field Service Technician 4
APPLY
Xylem
Mira Loma, CA
L5 Senior
August 29th, 2026
Installation, Maintenance, and Repair Workers, All Other
Water Supply and Irrigation Systems
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Electrical & Instrumentation Technician I-III (DOQ)
APPLY
Government
Chino, CA
L5 Senior
August 25th, 2026
Electrical and Electronic Engineering Technologists and Technicians
Water Supply and Irrigation Systems
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Electrical & Controls Engineer
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Xylem
Mira Loma, CA
L5 Senior
September 9th, 2026
Electrical Engineers
Engineering Services
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Water Resources and Environmental Services Manager* Job at City of Chino in Chino
APPLY
City Of Chino
Chino, CA
L4 Mid
September 11th, 2026
Water Resource Specialists
Administration of Air and Water Resource and Solid Waste Management Programs
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Outside Sales Representative
APPLY
Masters Coffee Water Service
Ontario, CA
L3 Junior
August 29th, 2026
Sales and Related Workers, All Other
Bottled Water Manufacturing
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Wastewater Treatment Operator I - Evening Shift & Benefits
APPLY
Innout Burgers
Chino, CA
L2 Entry
September 14th, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
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Stormwater Systems Technician
APPLY
Oldcastle Infrastructure
Fontana, CA
L3 Junior
September 15th, 2026
Maintenance and Repair Workers, General
Water and Sewer Line and Related Structures Construction
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Remote Water/Wastewater Treatment Project Manager
APPLY
Withersravenel
Fontana, CA
Remote
L6 Lead
September 6th, 2026
Water/Wastewater Engineers
Engineering Services
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Hydromechanical Engineer: Hydroelectric Systems Lead
APPLY
Mead & Hunt
Ontario, CA
L5 Senior
September 2nd, 2026
Mechanical Engineers
Engineering Services
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Hydromechanical Engineer - Water Resources Projects Lead
APPLY
Mead & Hunt
Ontario, CA
L5 Senior
September 2nd, 2026
Mechanical Engineers
Engineering Services
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Territory Account Representative
APPLY
Pentair
Chino Hills, CA
L5 Senior
August 28th, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Water Supply and Irrigation Systems
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Senior Customer Support Coordinator
APPLY
Xylem
Jurupa Valley, CA
L5 Senior
September 5th, 2026
Customer Service Representatives
Water Supply and Irrigation Systems
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Water Quality Scientist I - EPA Methods & Weekend Shifts
APPLY
Seeds Renewables
Pomona, CA
L3 Junior
September 9th, 2026
Environmental Scientists and Specialists, Including Health
Water Supply and Irrigation Systems
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Regional Sales Manager - West
APPLY
Xylem
Mira Loma, CA
L7 Manager
September 18th, 2026
Sales Managers
Water Supply and Irrigation Systems
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Field Installer/Service Technician
APPLY
Flowater
Ontario, CA
L3 Junior
September 11th, 2026
Installation, Maintenance, and Repair Workers, All Other
Water Supply and Irrigation Systems
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Records Specialist
APPLY
Inland Empire Utilities Agency
Chino Hills, CA
L5 Senior
September 12th, 2026
Information and Record Clerks, All Other
Water Supply and Irrigation Systems
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Territory Account Representative
APPLY
Pentair
Chino, CA
L5 Senior
September 1st, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Water Supply and Irrigation Systems
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