Total water levels in the eight dams on the Tone River system that supply the Tokyo region and five surrounding prefectures have dropped drastically, reaching record-low levels, according to the government.
The data reported by the Ministry of Land, Infrastructure, Transport and Tourism Kanto Regional Development Bureau this week reveals that current water levels at the eight dams are at their lowest in 25 years, since the ministry began surveying water resources in 1992.
According to the report, water levels at the Yagisawa Dam in Gunma Prefecture, the largest of the eight reservoirs, stood at only 34%, while the level at the Sonohara Dam, also in Gunma, was measured at 12 percent. Water levels at the eight reservoirs in total were only 58%.
The development bureau said one of the largest factors contributing to the shortfall is a considerable lack of rain since the end of April.
Prospects for an increase in the water levels in the summer months are low, according to the Japan Meteorological Agency, with rainfall in the Kanto-Koshin region expected to be lower than average through July, Sankei Shimbun reported.© Japan Today