Cloderm Cream is different from other corticosteroid creams or ointments because it is a unique molecule which provides prompt and effective treatment with an excellent safety profile. There are a number of important reasons why your physician may prescribe Cloderm Cream for you.
The National Electric Code requires that wire placed in Schedule 80 PVC must be buried at least 18 inches below ground. If the wire is being buried without PVC, it must be at least 24 inches underground.
I would run the yellow poly plastic gas line with a tracer wire and teflon coated risers on each end. That needs to be buried at least 18. Probably the easiest,cheapest, and most reliable as you only have 2 joints underground. You can use a teflon coated steel pipe that can be buried 12.