It is required to dewater a construction site 80m*80m.The bottom of the construction will be 1.5m below the initial water surface elevation of 90m. 4 pumps are to be used in 0.5m dia. wells at the four corners of the site. Determine the required pumping rate. the aquifer has T= 1600 m2/day and the wells each have radius of influence of 600m.