Retraction areas of water extraction

Water extraction attracts groundwater from an area larger than the groundwater protection area. The withdrawal areas actually “supply” the groundwater for the drinking water supply. The size of the retraction areas is determined on the basis of the time (100 years) that takes over a drop of water from the edge of the area to the point of abstraction (the well). In the case of extradition of this file, this must be reported to the person responsible for content. Version 2017.地下水取水作业从超出地下水保护区（groundwater protection area）的范围汲取地下水。此类取水区域实际为饮用水供水系统补给地下水。取水区域的规模依据水滴从区域边缘抵达取水点（水井）所需的时间（100年）确定。若对外分发本文件，须向内容负责人报备。本文件版本为2017年版。