Someone pours a cup of water into an open well dug into a confined aquifer. If the piezometric head is 4m lower at the neighbors well 1500m away, how long will it take the poured water to travel to the neighbors well? Assume steady, unidirectional flow in a homogeneous silty sand confined aquifer with a hydraulic conductivity of 3.5 m day-1, and an effective porosity of 0.35.

A 400 mm diameter test well penetrates 27 m below the static water table. After 24 hours of pumping at 75 liters/sec, the water level in an observation well at a distance of 100 m from the test well is lowered 0.35 m. The other observation well at a distance of 40 m from the test well has a drawdown of 0.97 m. Compute the transmissibility of the aquifer in m?/day.

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Question 1: * Two observation wells have been constructed in the formation shown. The flow rate is 0.01 cu. m/hr per unit width of the formation. o Compute the hydraulic gradient o Compute the equivalent hydraulic conductivity o Compute the value of k2. * Note: Since the soil is layered differently compared to the given figure above. Check FAQ's. 5m 2.5m 20m K2=? Kj=15 m/day K3=10 m/day 300m 600m 400m -1300m-