) You are working for a construction company and are building a school. In digging the foundation, you ind water at 7 m below the ground surface (bgs). One hundred meters away, you find water at 7.5 m ogs. Choose the datum as the confining layer that is at 25 m bgs. What is the piezometric surface at each point, the direction of groundwater flow, and the hydraulic gradient? Note: Assume the confining ayer is parallel to the surface (this may or may not be true but assuming this allows us to simplify a complicated problem). Include a diagram in your solution. wi 2126l

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