Water and Wastewater Treatment Plant and System Operators salary
in Seattle-Tacoma-Bellevue, WA
- Middle 50%
- $78,170–$104,020
- vs U.S. median
- +65%
- Metro rank
- #4 of 187
Water and Wastewater Treatment Plant and System Operators in the Seattle-Tacoma-Bellevue, WA metro earn a median of $99,010 a year, based on BLS estimates for 830 jobs (May 2025). That is 65% above the U.S. median of $60,020 and 23% above the WA statewide median of $80,800. It ranks #4 of 187 metros with published figures for this job.
- SOURCEBLS OEWS, May 2025
- SAMPLE830 jobs (estimate)
- SCOPEall employers, all experience levels
- PERIODMay 2025 estimates
Full percentile breakdown
BLS · metro vs U.S.
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Water and Wastewater Treatment Plant and System Operators pay in other WA metros
1 metros · BLS
| Metro | Median |
|---|---|
| Western Washington nonmetropolitan area | $74,230 |
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RELATED JOBS IN SEATTLE
Questions
What is the average Water and Wastewater Treatment Plant and System Operators salary in Seattle?
The BLS median is $99,010 a year (May 2025). Half of the 830 jobs pay between $78,170 and $104,020. The 10th percentile is $62,540 and the 90th is $119,000.
Is Seattle a high-paying metro for Water and Wastewater Treatment Plant and System Operators?
That is 65% above the U.S. median of $60,020 and 23% above the WA statewide median of $80,800. It ranks #4 of 187 U.S. metros with published BLS figures for this job.
How much do Water and Wastewater Treatment Plant and System Operators make an hour in Seattle?
About $47.60 an hour at the median (the BLS annual figure of $99,010 divided by 2,080 hours, the conversion BLS uses). The middle half earn about $37.58–$50.01 an hour. Straight-time pay, before overtime and shift differentials.
Does this include experience levels?
BLS figures cover all experience levels together. Employer filings carry a DOL wage level, which the free checker can filter by (approximate).
Sources: U.S. BLS Occupational Employment and Wage Statistics, May 2025 (national + state) (metro area estimates, all employers); employer rows from U.S. DOL OFLC LCA Disclosure Data, FY2026 Q3 (LCA_Disclosure_Data_FY2026_Q3.xlsx). Base pay only. Estimates can have sampling error, especially for smaller metros.