Yep, it was a regular water hazard (yellow) instead of a lateral hazard (red). With a regular water hazard, you can either rehit from your original position or you can take a drop keeping the point of entry into the hazard between you and the hole, which forces you to end up dropping back on the other side of the hazard in his situation. A lateral hazard (red) would have given him the option of dropping within two club-lengths of the point where his ball last crossed into the water hazard (but not closer to the hole) or a point on the opposite edge of the water hazard equidistant from the hole.
[This message has been edited by Bob the Enzyte Guy (edited 8/11/2009 12:27p).]