It is in the midst of a -40C deep freeze, but I am thinking of spring, and the garden I want to put in the front yard. The plan is to put it along the front of the house. But there is a problem... That is where my NG meter is. I would rather the garden ties around it instead of beside it. I would plant something that will never block the meter, but would look nice. My concern is, how deep down would the main line coming into my meter from the street be?