Cinder Block Foundation - Excessive Moisture
The problem is obvious from the picture. The water sheds down that hill right where the house is. There is a house near me that is at the base of a hill and it floods regularly even though mine does not. It is because he is at the base of the hill.

To solve the problem, you need to dig a trench between the house and the hill that is deeper than your foundation and put a drainage pipe in the bottom of the trench to drain the water somewhere else.