While walking along a pier, Amanda accidentally, kicks an anchor into the water but manages to garb onto the end of the rope before it too falls into the water. She then notices that when the rope is pulled taut directly above the anchor, there is 1 foot of rope above the water. If the rope is pulled taut but to the side, the end of the rope touches a point on the water surface 7 feet away from the point on the water surface directly above the anchor. How deep is the water?