Abstract
The water environmet is one of the most important factors to indicate “Quality of Life” in neighborhood scale. This study aims to estimate the evaluation model for water environment based on the questionnaire survey in Okayama city. It is also examined that the evaluation reliability by residents for bio-chemical water quality in town stream. As the results, it is clarified that the certain amount of water flow is required to realize acceptable evaluation of water environment by neighbors. Contrarily, it is also found that higher water quality from bio-chemical points of view is not always necessary in town planning. The most significant political suggestion from the concept of water recycle is to utilize underground water resources that comes from sewage.
