Finland is ranked as the third country in the world with highest literacy rate which is 100%. It has an average population density of 17 inhabitants per square kilometer. This makes it, after Norway and Iceland, the third most sparsely populated country in Europe as well.
An entry level chemical water treatment plant operator (1-3 years of experience) earns an average salary of $34,140. On the other end, a senior level chemical water treatment plant operator (8+ years of experience) earns an average salary of $56,165.
According to the BLS, the following industries reported the highest national mean water and wastewater treatment plant and system operator salaries in 2012: 1  Metal Ore Mining: $65,420. 2  State Government: $64,400. 3  Scientific Research and Development Services: $62,110.