The conductive qualities of water will allow electrical current to travel through it. But, is there a point where there is too much water for the electricity to administer a fatal or severe shock?

Question generated from something on TV where people were in the water in a building after a tidal surge from a typhoon and could feel the tingle of electricity in the water but were not negatively affected by it.

Can the amount of water “dilute” the electrical current or is it more dependent upon the location of the electrical source and the human body?