Average Base Salary
Average Hourly Rate
The average water treatment plant engineer salary in Arizona, United States is $84,769 or an equivalent hourly rate of $41. This is 6% lower (-$5,406) than the average water treatment plant engineer salary in the United States. In addition, they earn an average bonus of $2,848. Salary estimates based on salary survey data collected directly from employers and anonymous employees in Arizona, United States.