WHAT-WE-DO: Adapting to climate change: Heat and hardly any rain for months on end - a scenario like that in the summer of 2018 could be repeated more often in the future. More and more farmers are therefore turning to field irrigation to protect their crops from drought damage and to be able to deliver the required qualities and quantities despite the drought. With increasing irrigation, conflicts of use may arise. Therefore, it is necessary to determine in advance what the impact of the planned groundwater abstraction might be.

MuP Umwelttechnik GmbH was entrusted with the preparation of expert reports for several new irrigation wells in the Rhine-Neckar district. In the course of applying for the required water law permit, MuP Umwelttechnik GmbH determined and assessed the effects of the respective groundwater abstractions on the groundwater, the groundwater-dependent terrestrial ecosystems and on third parties (such as the public and decentralised drinking water supply of individual properties). In addition to the calculation and presentation of the drawdown radius of the planned groundwater abstraction, proof of sufficient water supply was provided, among other things, by balancing groundwater abstraction and groundwater recharge.

It was shown that the additional groundwater abstractions are not expected to have a negative impact on the water supply and groundwater. The geological and hydrogeological site conditions with a very productive and highly permeable unconsolidated aquifer are comparatively favourable, so that on average no significant lowering of groundwater is to be expected as a result of the extraction.

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