You should be aware that there is a serious danger from gas pipes that National Grid has recklessly created.
National Fuel Gas Code as well as the National Electric Code require gas using appliances to be “permently and effectively grounded.” Historically, this was accomplished because the gas to homes was supplied from metal pipes buried in the ground, and most people never thought about the issue of grounding gas appliances.
However, this has become a problem since National Grid has been replacing the metal gas pipes with plastic. This leaves appliances in the home ungrounded presenting both a fire and electrocution hazard. They argue that the gas pipes in the home should be connected to the ground, but I would wager that almost 100% of the gas pipes in homes are not separately grounded. I believe that it is their responsibility, when they replace the metal service with plastic, to insure that the gas pipe is properly grounded.