What is the Procedures for taking relief from casual water hazard in golf?

There is no such thing as a casual water hazard, there is either casual water or a water hazard.

Casual water is anywhere through the green where you take your stance and what is clearly visible. To get relief from this you get a one club length drop from the nearest point of relief, no nearer the hole.

A water hazard is usually marked with yellow stakes. If you are in the water hazard you have the option to play the ball or take a penalty drop (1 stroke) You can

* Take a two club length drop, from the nearest point of relief (which is the spot where you are no longer in the hazard) * Use the designated drop zone * Go back to as near as possible to where you played that previous shot from * or, go back as far back as you want, keeping the point where your ball entered the hazard between yourself and the pin and play another shot. (you can't drop in another hazard)