Water and Wastewater Treatment Plant and System Operators
O*NET 51-8031.00 · SOC 51-8031
Water and Wastewater Treatment Plant and System Operator is a risky career choice. Median pay is $60k a year with -5.7% projected growth through 2035 (declining) and about 10,000 openings a year. AI exposure: High.
Bureau of Labor Statistics projections 2025–2035 · Data updated 2026-07-27
What You'd Actually Do
- →Add chlorine or other chemicals to disinfect treated water
- →Collect water samples and test for bacteria and pH
- →Operate pumps and valves to move water through treatment stages
- →Clean and inspect settling tanks and filtration equipment
- →Record daily flow rates and chemical dosage in logbooks
Education & How to Get In
Water and Wastewater Treatment Plant and System Operator roles typically require a high school diploma or equivalent, with most training happening on the job. This makes it one of the more accessible career paths — you can often start working while earning certifications or completing short-term training programs.
Get Started Learning
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Work Environment
Hands-on — labs, workshops, or field sites
Mixed — alternates between solo focused work and collaboration
A Day in the Life
While every role varies by employer and specialization, a typical day as a Water and Wastewater Treatment Plant and System Operator involves a mix of core responsibilities:
Personality Fit (RIASEC)
Who Thrives as Water and Wastewater Treatment Plant and System Operator?
Based on the interests and work style this role actually demands, these personality types tend to fit it best. Salary and growth tell you if a career is worth entering — personality fit tells you whether you'll still want it in five years.
Not sure which you are? Take the 7-minute quiz →
See Open Water and Wastewater Treatment Plant and System Operator Roles
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Job Outlook
Employment of Water and Wastewater Treatment Plant and System Operators is projected to decline 5.7% from 2025 to 2035, declining for all occupations.
Will AI Replace This Job?
- ·42% routine cognitive tasks — high automation target
- ·42% physical tasks — limited by robotics progress
- ·Declining employment suggests structural disruption
Scored from the mix of routine, creative, physical and social tasks the role involves, adjusted for sector and projected growth. An estimate, not a forecast.
Common Questions
How much does a Water and Wastewater Treatment Plant and System Operator make?
The median Water and Wastewater Treatment Plant and System Operator earns $60k a year, according to the Bureau of Labor Statistics' May 2025 wage data. Half earn more than that and half earn less, and pay varies considerably by state, industry and experience.
Will AI replace Water and Wastewater Treatment Plant and System Operator jobs?
Our model puts Water and Wastewater Treatment Plant and System Operator at 65 out of 100 for automation exposure, which is high disruption risk. The main drivers: 42% routine cognitive tasks — high automation target; 42% physical tasks — limited by robotics progress.
Is Water and Wastewater Treatment Plant and System Operator a growing field?
Employment is projected to shrink 5.7% between 2025 and 2035, which is declining. That works out to roughly 10,000 openings a year, counting both new positions and people leaving the occupation.
What degree do you need to be a Water and Wastewater Treatment Plant and System Operator?
Most Water and Wastewater Treatment Plant and System Operator roles need a high school diploma or equivalent, with training happening on the job. A degree is not the usual route in.
How long does it take to become a Water and Wastewater Treatment Plant and System Operator?
Typically under a year, usually a high school diploma plus short training. O*NET classes this role as Job Zone 2 of 5, which describes how much preparation people in it usually have.
Is a Water and Wastewater Treatment Plant and System Operator career right for you?
Your personality, values, and strengths matter as much as the job market. Take the quiz to see your personalized Future-Fit Score for this career and hundreds more.
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