Rivers Amper (level Grafrath) Chemistry, Upper aquifer

The measuring point Pegel Grafrath (measuring point no.: 11101) is located in the waters of Amper. The measuring point is used to monitor the chemical status, the groundwater level in the upper groundwater level.格拉夫拉思水位监测点（Pegel Grafrath，测点编号：11101）坐落于安珀河（Amper）的水域范围内。该监测点用于监测水体化学状态与上层地下水位。