Recently had a new pond dug....drain tile is coming into the pond about 2 feet under what will be the water surface.

What problems am I looking at? Is my water level going to remain under that drain tile? Should it be plugged or keep it to help keep water level up.

Pong still has about 8 feet more of water to fill up before hitting the drain tile.

Also will water leak around the drain tile site coming into the pond?