This will be the same in the proposed 2019 rules of golf.
Golf rules water hazard off the tee.
These get treated with a two clubs length relief from the point where the ball last crossed the margin of the lateral water hazard.
The player can go back as far as he likes on this line.
In the current rules of golf you are only allowed to apply the water hazard rule 26 1 if it is known or virtually certain that the ball is in the water hazard.
Lateral water hazards run down the golf course think tee to green water like a stream or river.
You can replay the tee shot or take a drop at the hazard according to whether it is a lateral or not.
There must almost be no doubt that the ball is in the water hazard for you to proceed under the water hazard rule.
In this example probably not worth giving up most of the 250 yards so dropping.
If the player hits his ball into a regular water hazard vs.
Drop behind the water hazard keeping the point where the ball last crossed the hazard directly between the hole and the drop spot.
All ground and water within the margin of a lateral water hazard are part of the lateral water hazard.
Drop a ball behind the water hazard keeping the point at which the original ball last crossed the margin of the water hazard directly between the hole and the spot on which the ball is dropped with no limit to how far behind the water hazard the ball may be dropped.
According to the usga rules of golf a lateral water hazard is a water hazard or that part of a water hazard so situated that it is not possible or is deemed by the committee to be impracticable to drop a ball behind the water hazard in accordance with rule 26 ib.
Drop as close as possible to the spot where he played the previous shot.
With red stakes or lines you have an option of dropping within two club lengths the point of last crossing or moving to.
Water marked with red is called a lateral water hazard and normally runs along the side of a golf hole.
Lateral water hazard ruling.
The three options you have in both cases are that you can play the ball from where it lies go back to where you hit your last shot or take a drop anywhere along a straight line from the flagstick and the point where the ball last crossed into the hazard.