Median of all compensation (including tips, bonus, and overtime) by years of experience.
Water Treatment Plant Managers with a lot of experience do not necessarily enjoy more money. Relatively untried employees who have fewer than five years of experience earn around $43K on average. People who have worked for five to 10 years can expect a higher median salary of $48K. For Water Treatment Plant Managers, 10 to 20 years of experience on the job amounts to an average salary of $56K. Water Treatment Plant Managers with more than 20 years of experience report incomes that are only modestly higher; the median for these old hands hovers around $61K.