Basement Waterproofing - Water Intrusion and Efflorescence on Basement Wall

Here are some very clear signs of water intrusion in the basement of this home. Water can be seen dripping down the wall towards the right side and the homeowner had to place down towels to catch some of the water. Efflorescence, the white powder looking substance, can also be seen towards the left-hand side of the photo. These are the minerals that are left behind when the water evaporates off of the wall.