Utilities
Water Treatment Operator
Water treatment operators are responsible and detail-oriented people who enjoy science, protecting public health, and working with equipment. This role suits steady, safety-minded individuals who like technical tasks and outdoor/indoor work. No college degree is required to start. It’s an excellent fit for job seekers wanting stable, meaningful work with in an essential public service.
Median wage
$28.86/hr
Physical demands
medium
Drug test
Yes
National wages & job outlook
National figures for Water and Wastewater Treatment Plant and System Operators, shown as published by the source below.
Entry (10th–25th pct)
$18.8–$23.1/hr
Median
$28.86/hr
Experienced (75th–90th pct)
$35.95–$43.78/hr
Projected openings / year
10,700
-7% growth, 2024–2034
Wage data: 2025. National figures; local pay varies.
Source: CareerOneStop (careeronestop.org), sponsored by the U.S. Department of Labor, Employment & Training Administration (DOLETA), and the Minnesota Department of Employment & Economic Development (DEED).
Starting requirements
- High school diploma or GED
- Good math and basic science skills
- Ability to work shifts and be reliable
- Clean background check and valid driver’s license
- Willingness to earn state operator certifications
Training structure
Most start with on-the-job training while studying for state certifications. Short technical courses or community college programs (6 to 18 months) teach water treatment processes, safety, and testing. Employers often help with training and exam prep. It’s a clear, practical path.
Top credentials
- State Water Treatment Operator License
- Wastewater Operator Certification
- OSHA 10
- CDL Class B
Licenses & certifications
Licenses are state-specific and certifications vary by specialty. Look up the exact ones for this path in your state.
Open the license & certification finderAdvancement path
Entry: Water treatment operator after certification
Mid-Level: Senior operator or shift supervisor
Advanced: Lead operator, plant supervisor, or water utility manager
Additional certifications and experience can bring higher pay and leadership opportunities with excellent long-term stability.
Typical employers
Municipal water utilities, public works, private water systems
A day in the life
Your shift starts by checking equipment and water quality readings. You monitor treatment systems, run lab tests, adjust chemical levels, and perform maintenance. You keep detailed records and respond to any issues to keep water safe. The work is important, steady, and gives you the pride of protecting community health every day.