A sensor measures the live groundwater level in a borehole in the grounds of the hotel on a 15-minute interval. The levels shown in the plot are in metres relative to ground level (left y axis; negative values mean depth below ground level) and height above sea level (right y axis). The water levels from this borehole can be used by properties in the area that are prone to basement groundwater flooding.
© 2026 South Oxford Flood Action Group