JOBSEARCHER
OCCUPATIONS
INDUSTRIES
LOCATIONS
COMPANIES
SENIORITY
EXPLORE
SIGN IN
KEYWORDS
LOCATIONS
EXACT
NEARBY
Ontario, CA
Advanced search
SEARCH
10,000+
"reverse osmosis"
jobs
near
Ontario, CA
in last 30 days
Show all >
Save
98
"reverse osmosis"
jobs
near
Ontario, CA
in last 30 days
Show all >
Save
Filter
<
Date
Last 30 days
Water Treatment Supervisor
APPLY
City Of Chino Ca
Chino, CA
L7 Manager
October 24th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
Show all >
Senior Wastewater Technical Leader – West Region
APPLY
Woodard Curran
Fontana, CA
L7 Manager
October 20th, 2026
Water/Wastewater Engineers
Sewage Treatment Facilities
Show all >
Water Resources Director - City of Pomona, CA
APPLY
Peckham Mckenney Executive Search
Pomona, CA
L7 Manager
October 14th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
Show all >
Water Resources Director Lead a 91-FTE Utility
APPLY
Peckham Mckenney Executive Search
Pomona, CA
L7 Manager
October 13th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
Show all >
Water Resources Director - Lead City Water & Energy
APPLY
American Water Works Association
Pomona, CA
L7 Manager
October 13th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
Show all >
Water Resources Director
APPLY
Peckham
Pomona, CA
L7 Manager
October 6th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
Show all >
Water Resources Director
APPLY
Water Otter Job Board
Pomona, CA
L7 Manager
October 22nd, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
Show all >
Senior Engineer (Asset Management)
APPLY
Government
Chino, CA
L7 Manager
October 16th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
Show all >
Wastewater and Storm Operations Supervisor
APPLY
City Of Chino Ca
Chino, CA
L7 Manager
October 11th, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
Show all >
Wastewater & Storm Operations Lead
APPLY
City Of Chino
Chino, CA
L6 Lead
October 17th, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
Show all >
Wastewater Operator in Training : 202970
APPLY
Hkaenterprises
Ontario, CA
L3 Junior
October 7th, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
Show all >
Utility Worker - Water/Wastewater/Streets : 202955
APPLY
Hkaenterprises
Ontario, CA
L3 Junior
October 22nd, 2026
Water and Wastewater Treatment Plant and System Operators
Water and Sewer Line and Related Structures Construction
Show all >
Wastewater Maintenance Tech I/II 9/80 Schedule, Benefits
APPLY
City Of Chino Hills
Chino Hills, CA
L4 Mid
October 31st, 2026
Water and Wastewater Treatment Plant and System Operators
Sewage Treatment Facilities
Show all >
Water Treatment Service Technician
APPLY
Halls Culligan Water
Ontario, CA
L3 Junior
November 4th, 2026
Water and Wastewater Treatment Plant and System Operators
Water Supply and Irrigation Systems
Show all >
Water & Wastewater Environment Technician - Rotating Shifts + Bonus
APPLY
Nucor
Fontana, CA
L4 Mid
October 31st, 2026
Water and Wastewater Treatment Plant and System Operators
Administration of Air and Water Resource and Solid Waste Management Programs
Show all >
Water Resources Director
APPLY
American Water Works Association
Pomona, CA
L7 Manager
October 14th, 2026
Water Resource Specialists
Water Supply and Irrigation Systems
Show all >
Strategic Water Resources Director for Municipal Utilities
APPLY
Water Otter Job Board
Pomona, CA
L7 Manager
October 22nd, 2026
Water Resource Specialists
Water Supply and Irrigation Systems
Show all >
Assistant Water/Wastewater Department Manager
APPLY
Michael Baker International
Fontana, CA
L7 Manager
November 3rd, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
Show all >
Hybrid Senior Project Manager, Water Resources (CA)
APPLY
GFT
Chino Hills, CA
L7 Manager
November 4th, 2026
Water/Wastewater Engineers
Water Supply and Irrigation Systems
Show all >
Utility Worker – Water / Wastewater / Streets : 202955
APPLY
Hkaenterprises
Ontario, CA
L3 Junior
October 6th, 2026
Water and Wastewater Treatment Plant and System Operators
Water and Sewer Line and Related Structures Construction
Show all >
Water Systems Installation & Service Technician
APPLY
Crh California Water
Ontario, CA
L3 Junior
October 11th, 2026
Installation, Maintenance, and Repair Workers, All Other
Water Supply and Irrigation Systems
Show all >
Water Resources Director
APPLY
City Of Pomona
Pomona, CA
L7 Manager
October 9th, 2026
Water Resource Specialists
Water Supply and Irrigation Systems
Show all >
Bottled Water and Coffee Service Driver
APPLY
Masters Coffee Water Service
Ontario, CA
L3 Junior
October 6th, 2026
Light Truck Drivers
Water Supply and Irrigation Systems
Show all >
Bottled Water and Coffee Service Driver Class B CDL
APPLY
Masters Coffee Water Service
Ontario, CA
L3 Junior
October 17th, 2026
Light Truck Drivers
Water Supply and Irrigation Systems
Show all >
Remote Business Operations Director - Field Service
APPLY
Culligan Quench
Pomona, CA
Remote
L7 Manager
October 10th, 2026
General and Operations Managers
Bottled Water Manufacturing
Show all >
Remote Business Operations Director - Field Service
APPLY
Culligan Quench
Fontana, CA
Remote
L7 Manager
October 10th, 2026
General and Operations Managers
Bottled Water Manufacturing
Show all >
Remote Business Operations Director - Field Service
APPLY
Culligan Quench
Jurupa Valley, CA
Remote
L7 Manager
October 11th, 2026
General and Operations Managers
Bottled Water Manufacturing
Show all >
Inside Sales Representative - Water Equipment Manufacturing
APPLY
Hader Solutions
Ontario, CA
L5 Senior
October 28th, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers
Show all >
Maintenance Worker I/II - Wastewater
APPLY
City Of Chino Hills
Chino Hills, CA
L4 Mid
October 28th, 2026
Maintenance and Repair Workers, General
Sewage Treatment Facilities
Show all >
Field Service Technician-Leak Detection
APPLY
Xylem
Mira Loma, CA
L5 Senior
October 9th, 2026
Installation, Maintenance, and Repair Workers, All Other
Water Supply and Irrigation Systems
Show all >
Field Service Technician-Leak Detection
APPLY
Xylem
Jurupa Valley, CA
L5 Senior
October 10th, 2026
Installation, Maintenance, and Repair Workers, All Other
Water Supply and Irrigation Systems
Show all >
Water Resources Project Manager
APPLY
Michael Baker International
Ontario, CA
L7 Manager
October 28th, 2026
Civil Engineers
Engineering Services
Show all >
Inventory Control Associate
APPLY
Niagara Bottling
Ontario, CA
L4 Mid
October 18th, 2026
Industrial Production Managers
Water Supply and Irrigation Systems
Show all >
Account Manager
APPLY
Fresh Water Aguas Frescas
Ontario, CA
L4 Mid
October 22nd, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Water Supply and Irrigation Systems
Show all >
Inside Sales Representative
APPLY
Boulder Connect
Ontario, CA
L5 Senior
November 1st, 2026
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products
Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers
Show all >
Environmental Technician
APPLY
Californiasteelindustrie
Fontana, CA
L4 Mid
October 29th, 2026
Environmental Engineering Technologists and Technicians
Administration of Air and Water Resource and Solid Waste Management Programs
Show all >
Engineering Intern - Summer 2027
APPLY
Wsc
Ontario, CA
L1 Intern
October 18th, 2026
Civil Engineers
Engineering Services
Show all >
Water Resources and Environmental Services Manager*
APPLY
City Of Chino Ca
Chino, CA
L6 Lead
October 29th, 2026
Water Resource Specialists
Administration of Air and Water Resource and Solid Waste Management Programs
Show all >
Engineering Intern (Water Resources)
APPLY
Government
Pomona, CA
L1 Intern
October 16th, 2026
Civil Engineers
Engineering Services
Show all >
Temporary Water Distribution Field Technician in Mira Loma
APPLY
Energy Jobline
Jurupa Valley, CA
L3 Junior
October 21st, 2026
Plumbers, Pipefitters, and Steamfitters
Water Supply and Irrigation Systems
Show all >
1
2
3