Lithuania determined by the fact that drinking water comes from deep layers that are protected from pollution on the surface of the earth. Drilling depth usually reaches 30–50 meters, but in Klaipėda Region it even reaches 250 meters. Consequently, Lithuania is one of very few European countries where groundwater is used for centralized water supply. With a large underground fresh water reserves, Lithuania exports mineral-rich water to other countries. Approved mineral water quantity is about 2.7 million cubic meters per year, while production is only 4–5 percent of all mineral water resources. Vilnius is the only Baltic capital that uses centralized
Russians in Lithuania was built for workers at the Ignalina Nuclear Power Plant and therefore has an ethnic Russian majority (56%). "As of 2011 according to census" Top 10 municipalities with Russian diaspora: Top 10 cities with Russian diaspora: Top 10 cities by number of Russians: Russians in Lithuania Russians in Lithuania numbered 140,000 people, according to the Lithuanian estimates of 2015, or 4.8% of the total population of Lithuania. First early settlements of Ruthenians in what is now Lithuania date back to late medieval ages when the first proto-Russian merchants and craftsmen began to permanently reside in several Lithuanian towns. In the