How much does a water plant operator make?
a year · about $29 an hour
A typical water plant operator in the United States makes $60,020 a year, about $29 an hour, about the same as a typical US worker (median, May 2025, US Bureau of Labor Statistics).
What do they do?
They collect and test water or sewage samples, watch gauges and controls, and adjust equipment or add treatment chemicals. They record readings and inspect or repair machines to keep the treatment process working.
Did you know? If a power outage stops a plant, operators may have to run equipment by hand to keep water treatment going.
Is that a lot?
Compared with jobs you knowIf 100 people had this job
Most earn between $39,110 and $91,060How do you become one?
In the U.S., most start with a high school diploma or GED, then learn on the job; repair skills can help. A state license is usually needed, and trainees often work toward it on the job, with exam rules varying by state.
School needed: High school plus some training
Good for people who like building and doing and keeping things organized
Why does pay differ?
In the United States, experience and higher state-license levels can lead to more responsible, specialized work, such as supervising a large team. Pay also varies by employer and location, and some employers offer extra pay for night shifts.
Where does it pay most?
Highest in California ($81,770), lowest in Arkansas ($44,320).
See every state
Top 5 and bottom 3 states, typical (median) yearly pay.
Jobs like this
Data table and sources
| Lower earner (10th from bottom) | Typical person (median) | Higher earner (10th from top) | People in this job |
|---|---|---|---|
| $39,110 | $60,020 | $91,060 | about 128,000 |
| State | Typical person (median) | People in this job |
|---|---|---|
| California | $81,770 | about 12,000 |
| Washington | $80,800 | about 2,000 |
| Connecticut | $78,820 | about 980 |
| New Jersey | $78,760 | about 3,000 |
| Minnesota | $74,670 | about 2,000 |
Official definition: Operate or control an entire process or system of machines, often through the use of control boards, to transfer or treat water or wastewater.
Source: US Bureau of Labor Statistics, OEWS May 2025 (bls.gov); descriptions and related jobs from O*NET 31.0. Figures as of May 2025, full-time yearly pay (hourly × 2,080 hours). bls.gov/oes · O*NET OnLine
Pages used for the text
- www.bls.gov/ooh/production/water-and-wastewater-treatment-plant-and-system-opera
- www.onetonline.org/link/summary/51-8031.00
- www.bls.gov/careeroutlook/2015/article/wage-differences.htm
- www.careeronestop.org/toolkit/Training/find-licenses-detail.aspx?keyword=&locati
- phh.tbe.taleo.net/phh01/ats/careers/v2/viewRequisition?org=CSU&cws=55&rid=19324
Data: US BLS OEWS, May 2025 · 1 USD = 150 JPY