Given an unconfined aquifer with a saturated thickness of 15 m, h0, as shown in Fig....

Given an unconfined aquifer with a saturated thickness of 15 m, h0, as shown in Fig. 1. Observation wells are located at the radial distances of 30, 60, and 120 m from the center of pumping well.

Water is pumped at the rate of 0.015 m^3/sec. After pumping 12 hours, the drwdowns are z1=0.60 m at the radius r1= 30 m , z2 = 0.43 m at r2 = 60 m and z3= 0.26 m at r3 = 120 m.

1. Evaluate the permeability of the aquifer using all three combinations of selecting two observation wells in the computation.

2. How many laboratory permeability tests would be required to achieve the accuracy?

Expert Solution

Ally Wells answered 2 years ago

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