Despite having a large amount of rainfall, Japan does not necessarily have access to a large amount of water on a per capita basis, so in some cases it has to import water from other countries. However, from the standpoint of its highly developed drinking water systems and access to clean water rich in minerals purified from rain and snowfall in its pristine mountains, Japan is also considered blessed with a wealth of water
Calcium hypochlorite is used in Japan to kill bacteria and sterilize drinking water and in some cases you can taste an aftertaste depending on the water source and area. This trend is particularly noticeable in urban areas, so many people buy bottled mineral water.
Hokkaido has a large number of famous and pristine natural springs. The water sourced from some of these springs is sold as bottled mineral water. These springs are often found in areas at the foot of large mountains, such as Mt. Yotei and Mt. Daizetsu.
■Map / Main producing municipalities
Kyogoku Town is extremely famous for its pristine natural springs fed by snowmelt from Mt. Yotei. Higashikawa Town and Asahikawa City, located at the foot of the Daizetsu Range and Tomakomai City, situated close to Mt. Tarumae, each have access to pristine subsoil water from the mountains.
Eniwa City, Sapporo City, Otaru City, Kyogoku Town, Tomakomai City, Kuromatsunai Town, Higashikawa Town, Asahikawa Town, Teshikaga Town, Rausu Town
Famous Hokkaido waters include the bubbling spring of Kyogoku Town, which has been selected as one of Japan’s 100 most famous waters by the Ministry of the Environment. This spring is fed by rainfall and snowmelt of Mt. Yotei, also known as Ezo Fuji, which percolates for many years through the ground and bubbles up as purified spring water. Similarly, many of Hokkaido’s most famous water spots are located near large mountains, such as Mt. Daizetsu, Mt. Tarumae and Mt. Rishiri. These are all soft waters and have a very smooth taste.
In addition, water is sourced from the bottom of Lake Mashu in Teshikaga Town and from deep ocean water in Rausu Town.
Mineral water is not affected by the seasons, but from March to May the volume of water increases due to snowmelt from the mountains.