2.5.1 Groundwater flow conceptual model representing summer conditions
The first MODFLOW model developed for the summer months (June-July-August) using conditions from summer (JJA) of 2015 uses a North-South constant head boundary of 3.5 mTAW based on the analysis of heads in section 3.2.1. The East-West boundary is defined as a general head boundary in reference to the mean lake stage during this period. A constant pumping rate of 8,400 m3day-1 and an inflow rate of 6,080 m3day-1 has been used for this model, which represents the mean pumping rate and inflow rate during this period. The mean observed lake stage is 6.9 mTAW. Leakance through pond bed is set as 0.39 day-1, which is 30 % higher than the leakance of pond bed in winter corresponding to the findings of impact of fluidity on hydraulic conductivity of the pond bed.