An unconfined aquifer (K = 12. 2 m/day) is separated from an underlying confined aquifer (K = 15. 2 m/day ) by a semi pervious layer ( K = 0. 305 m/day ) that is 1.5 meters thick as show:: in Figure P7.1.IO. Explain why there is flow from the unconfined aquifer to the confined aquifer Also, determine the flow rate per square meter moving through the semi pervious layer.

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Ground surface Wells Water table 2.0 m Piczometric surfacc 3.5 m Unconfined Aquifer Y Semipervious layer 1.5 m Confined Aquifer Figure PT.1.10