One never knows how their culture will change. On the East Coast, home heating oil USTs became a nightmare: A National Nightmare in the 90's. Though in the 40's to 50's this was what everyone did. They dug a hole, but in a tank, and ran an oil furnace. Then, oil got expensive, and people switched over to Natural Gas - the new clean energy. And all those old tanks had to be decommissioned. Which was also expensive. So after that conversion, we now have a new conversion and natural gas is now the evil heating source, rather expensive, and we should all switch to electric. There is a pattern here.