WHAT-WE-DO: Adapting to climate change: Heat and hardly any rain for months on end - a scenario like that of summer 2018 could be repeated more frequently in 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. Increasing irrigation can lead to increased conflicts of use. It is therefore necessary to determine in advance what impact the planned groundwater extraction could have.

MuP Umwelttechnik GmbH was commissioned to prepare expert reports for several new irrigation wells in the Rhine-Neckar district. In the course of applying for the necessary water law permit, MuP Umwelttechnik GmbH determined and evaluated the effects of the respective groundwater extraction on the groundwater, the groundwater-dependent terrestrial ecosystems and third parties (such as the public and decentralised drinking water supply of individual properties). In addition to calculating and visualising the drawdown radius of the planned groundwater extraction, proof of sufficient water supply was also provided by balancing groundwater extraction and groundwater recharge.

It was shown that no negative effects on the water supply and groundwater are to be expected as a result of the additional groundwater extraction. 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 the groundwater level is to be expected as a result of the extraction.

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