The challenges of operating and maintaining a small system water treatment plant can be overwhelming, especially these days, but it is always good to know that your efforts are paying off - and not only because your system is meeting compliance. There is another important contribution you are making to the community as well: the water you help provide can actually make people happy. How can we tell? According a study conducted by the United States Department of Agriculture, drinking water has a significant impact on our mood. The researchers found that not drinking enough water was associated with negative mood, including fatigue and confusion, compared to those who drank enough water. But is isn't just the quantity that matters - the quality is important as well. Recently, author Dan Buettner teamed up with Gallup’s social scientists to develop an index that assesses measurable expressions of happiness and identifies where Americans are living their best lives . The results of this index are the subject of Buettner's new book, The Blue Zones of Happiness . Among the surprises Buettner turned up while conducting his research: “There’s a strong correlation between quality of water and happiness." In fact, according to OECD Better Life Index , water quality satisfaction leads to higher overall sense of well-being. The United States, for example, does fairly well in terms of water quality, as 84% of people say they are satisfied with the quality of their water , higher than the OECD country average measurement of 81%. And this important measure seems to be shared by all high scoring nations. Cheers!