Hole in water pump cavity in head

[37 Coupe]

Hopefully the picture will show up and you can see the hole that is in the water pump cavity.It would be about 3:00 if a clock face. I just wonder if it goes through to where coolant is allowed in the head anyway or it needs to be plugged.There is another hole that I know is correct at the bottom say at 6:00.If coolant is on the backside of the hole that would be fine I guess but this is right in front of the stud that hold water neck in place on drivers side so I hope it is not allowing coolant to combustion area.