H3Dv2.1 A0252, isopachen Sites of Diest and Bolderberg within the Roerdalslenk

This layer represents the A0252 isopachen, as defined in the hydrogeological 3D model of the Flemish substrate – version 2.1. The hydrogeological 3D model was drawn up in the framework of the Flemish Government’s management agreement with VITO, known as VLAKO, on behalf of the Flemish Environmental Agency本图层对应弗拉芒基底水文地质三维模型（版本2.1）中定义的A0252等厚层（isopachen）。该水文地质三维模型由弗拉芒政府代表弗拉芒环境署，依据与弗拉芒技术研究院（VITO）签订的名为VLAKO的管理协议编制而成。