Central Nippon Expressway Company Limited Tokyo Regional Head Office Hatano Construction Office (Kanagawa Prefecture Hadano, Koichi Director-Mizuhashi) is, on September 3, 2013, Shin-Tomei Expwy in construction during the period, Shin-Tomei Expwy Kanagawa Prefecture west The Groundwater Countermeasures Committee (Chair: Toru Imada, Professor Emeritus, Tokyo Metropolitan University) was held.
The committee, when constructing the Shin-Tomei Expwy (west Kanagawa Prefecture), based on the situation of groundwater and springs (hereinafter referred to as "groundwater") around the planned route, the investigations and examinations that have been conducted so far, and We discussed future research plans and conservation measures.

• (1) Hydrological observation results in Hadano City
• (2) Examination of the impact on the Hadano groundwater basin
• (3) Future research plans for (2)
• (4) Examination of impacts in Matsuda Town and Yamakita Town