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.
Key water and wastewater treatment plant and system operator salary trends. The BLS (bls.gov, 2012) reports that the national median water and wastewater treatment plant and system operator salary in 2012 was $42,760 with the bottom 10 percent earning up to $25,850 and the top 10 percent earning $67,810 or more.