Groundwater Level Archive

Database of water levels in selected observation boreholes: daily, weekly or monthly measurements. Consistent set of boreholes in catchments relatively undisturbed by pumping distributed across most significant aquifer units in the UK. Most sites have more than 30 years of data, and some sites have considerably longer time series. The dataset represents only 5% of active groundwater monitoring networks run by UK measuring agencies. BGS holds other, historical, groundwater level data, including one off measurements and time series.