Atwood water heater different leak

Is it still covered under a warranty? If not I would remove that foam piece and wrap that plug with Teflon tape and re tighten it. You should be able to see where the leak is coming from. You may have a cracked tank as others have said but on a year old unit I would want to be sure it wasn't leaking from the plug, or from the Pressure Relief Valve and running down a wire and pooling in back of the foam.