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
History of the Jews in Lithuania "kahals" were not successful. The impoverished Jewish merchants, having no capital of their own, were compelled to borrow money from the nobility, from churches, congregations, monasteries, and various religious orders. Loans from the latter were usually for an unlimited period and were secured by mortgages on the real estate of the "kahal". The "kahals" thus became hopelessly indebted to the clergy and the nobility. In 1792 the Jewish population of Lithuania was estimated at 250,000 (as compared with 120,000 in 1569). The whole of the commerce and industries of Lithuania, now rapidly declining, was in the hands of the Jews.