The annual salary statistics of water and wastewater treatment plant and system operators in Seattle-Tacoma-Bellevue, Washington is shown in Table 1. The wage data of water and wastewater treatment plant and system operators in Seattle-Tacoma-Bellevue is based on the national compensation survey conducted by the U.S. Bureau of Labor Statistics in 2022 and published in April 2023 [1].
| Percentile Bracket | Average Annual Salary |
|---|---|
| 10th Percentile Wage | $57,220 |
| 25th Percentile Wage | $67,670 |
| 50th Percentile Wage | $79,950 |
| 75th Percentile Wage | $93,190 |
| 90th Percentile Wage | $101,170 |
Table 1 shows the average annual salary for water and wastewater treatment plant and system operators in Seattle-Tacoma-Bellevue, Washington in 5 percentile scales. The average annual salary for the 90th percentile (the top 10 percent of the highest paid) is $101,170. The median (50th percentile) annual salary is $79,950. The average annual salary for the bottom 10 percent earners is $57,220.
The table and chart below show the trend of the median salary of water and wastewater treatment plant and system operators from 2012 to 2022.
| Year | Median Salary | Yearly Growth | 10-Year Growth |
|---|---|---|---|
| 2022 | $79,950 | 1.98% | 17.64% |
| 2021 | $78,370 | 2.17% | - |
| 2020 | $76,670 | 6.16% | - |
| 2019 | $71,950 | 6.18% | - |
| 2018 | $67,500 | 1.53% | - |
| 2017 | $66,470 | -3.73% | - |
| 2016 | $68,950 | -1.38% | - |
| 2015 | $69,900 | -0.33% | - |
| 2014 | $70,130 | 3.51% | - |
| 2013 | $67,670 | 2.69% | - |
| 2012 | $65,850 | - | - |
From Table 3 we note that with a median annual salary of $79,950, Seattle-Tacoma-Bellevue is the highest paying city for water and wastewater treatment plant and system operators in state of Washington, followed by Olympia (median annual salary $77,280). In comparison, the median annual salary of water and wastewater treatment plant and system operators in Seattle-Tacoma-Bellevue is 3.3 percent (3.3%) higher than that in Olympia.