Salary Survey: Water and Wastewater Treatment Plant and System Operators in Washington
| Average Annual Salary | $61,790.00 | Average Hourly Salary | $29.71 | Jobs Per Thousand | 0.799 |
| Annual Percentile | |||||
| 10 Percentile | 25 Percentile | 50 Percentile | 75 Percentile | 90 Percentile | |
| $43,270.00 | $51,620.00 | $61,000.00 | $72,890.00 | $81,450.00 | |
| Hourly Percentile | |||||
| 10 Percentile | 25 Percentile | 50 Percentile | 75 Percentile | 90 Percentile | |
| $20.80 | $24.82 | $29.33 | $35.04 | $39.16 | |