Erratum to: Environ Earth Sci (2014) 71:4409–4419 DOI 10.1007/s12665-013-2834-9

In the original article, the label on the x axis of Fig. 8b is incorrect. The labels for the piezometers should be ‘shallow’ followed by ‘deep’. The corrected version of Fig. 8 is given below.

Fig. 8
figure 1

Water levels in piezometers PZS (shallow) and PZD (deep) indicating the direction of groundwater flow in canal bed at select times during the monitoring periods. a Upward groundwater flow direction, b downward groundwater flow direction