What are floodplain deposits ?

People often say that groundwater flows from topographic high to topographic adjacent low. Using hydraulic head and other concepts of hydrogeology, how would you explain this?

Cristal obliged himself to construct a rip-rap wall along the west-side of Kevin’s property in order to prevent further soil erosion. It was agreed that the measurements are 5 meters deep and 400 meters long to cover the whole wet portion of the property. What are the remedies of Cristal?

Describe how you would construct a wetland adjacent to the river and how you would test the water quality.