Where are the leaks in megaton

The three leaks that can be found in Megaton (a quest initiated by Walter) are as follows;

• On top of the Children of Atom. Reached easily by jumping down from the right corner of the fence by Craterside Supply.
• On the hill where you enter. Right by the staircase to get to your Megaton house.
• On the hill opposite of where you enter Megaton that leads to the Common House.

You need a repair skill of at least 30 to fix all the pipes.