Infrastructure in Warsaw
Warsaw has seen major infrastructural changes over the past few years amidst increased foreign investment and economic growth. The city has a much improved infrastructure with new healthcare facilities, sanitation, etc. Sanitation Water supply Three supply systems serve Warsaw inhabitants. Wodociąg Centralny (Central Water Main) is the oldest. It was built in the 19th century. After many renovations, it is still functioning and providing water for more than half of Warsaw's residents. The other supply systems are Wodociąg Praski (Praga Water Main) and Wodociąg Północny (Northern Water Main). Sewerage Warsaw's sewer system was installed in the second half of the 19th century, at the same time as the water supply system. Currently the waste water collectors are 2,020 km long and serve over 90 percent of inhabitants. A new sewage treatment plant is planned for the south of the city on the left river bank. Health system The first hospital in Warsaw was established in 1353 by duke Siemowit III and his wife Eufemia and named the Hospital of the Holy Spirit after the Holy Spirit intra muros. In 1571, the famous Wojciech Oczko, an author of extensive treatises on balneology and syphilidology, was made a doctor there. It was