1. [1] Department of Soil Environment, Ministry of Environment of Japan: Heisei 17 nendo dojo osen taisaku-ho no seko jokyo oyobi dojo osen chosa taisaku jirei-to ni kansuru chosa kekka (Report of investigation for soil contamination countermeasure law, 2007), (in Japanese).
2. [2] K. Matsushita: Kankyo Gabanansu-ron (Environmental governance methodology), Publisher of Kyoto University, (2007) (in Japanese).
3. [3] Advisory Committee for Soil Environment: Saito goto no osen jokyo ni ojita gori-teki katsu tekisetu na taisaku no sokushin hosaku (Report on the site specific assessment and reasonable and appropriate countermeasures for soil contamination), (2008) (in Japanese).
4. [4] Ministry of Trade, Economy and Industry: Jigyosha no dojo osen taisaku-to jittai chosa hokoku-sho (Report of actual condition survey for soil contamination countermeasures in industry), (2008) (in Japanese).
5. [5] T. Komai: Role of Environmental Geology in Remedial Action for Soil Contamination, Journal of Geography, 116(6), 853-863, (2007).