Hanoi city has abundant groundwater, supplemented by the surface water (mainly Red river) all year round, and the extensive shallow aquifers, which are easily exploited by large-diameter wells. There always exists some open hydrogeological windows in the Red river area with an open structure; therefore, the groundwater has a strained hydraulic relationship with the Red river water system Along the Red river from Ba Vi to the end of Phu Xuyen district, there are nine regions with three types and four sub-types of different hydrogeological structures. |
