The data release includes groundwater chemistry data from 8 samples and 2 tap water samples collected during the borehole construction phase at the UK Geoenergy Observatories (UKGEOS) Glasgow facility. This release from the British Geological Survey (BGS) covers water samples collected between December 2018 and December 2019 and then analysed for the concentrations of selected parameters at BGS and other laboratories. It contains a report and a data sheet. Further details can be found in the accompanying report http://nora.nerc.ac.uk/id/eprint/530443